| 1 | # -*- coding: utf-8 -*- |
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| 2 | |
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| 3 | import re |
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| 4 | import time |
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| 5 | import unittest |
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| 6 | |
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| 7 | from trac.core import Component, implements |
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| 8 | from trac.db import Column, DatabaseManager, Index, Table |
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| 9 | from trac.resource import Resource |
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| 10 | from trac.search.api import search_to_sql |
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| 11 | |
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| 12 | from api import IFormDBObserver, _ |
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| 13 | from compat import json, parse_qs, resource_exists |
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| 14 | from tracdb import DBComponent |
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| 15 | from util import resource_from_page, xml_unescape |
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| 16 | from web_ui import parse_history |
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| 17 | |
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| 18 | |
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| 19 | class FormDBComponent(DBComponent): |
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| 20 | """Provides form update methods and schema components.""" |
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| 21 | |
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| 22 | implements(IFormDBObserver) |
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| 23 | |
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| 24 | applySchema = True |
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| 25 | |
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| 26 | # abstract TracForms update methods |
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| 27 | |
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| 28 | def get_tracform_ids(self, src, db=None): |
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| 29 | """Returns all child forms of resource specified by parent realm and |
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| 30 | parent id as a list of tuples (form_id and corresponding subcontext). |
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| 31 | """ |
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| 32 | db = self._get_db(db) |
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| 33 | cursor = db.cursor() |
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| 34 | cursor.execute(""" |
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| 35 | SELECT id, |
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| 36 | subcontext |
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| 37 | FROM forms |
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| 38 | WHERE realm=%s |
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| 39 | AND resource_id=%s |
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| 40 | """, (src[0], src[1])) |
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| 41 | ids = [] |
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| 42 | for form_id, subcontext in cursor: |
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| 43 | ids.append(tuple([int(form_id), subcontext])) |
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| 44 | return ids |
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| 45 | |
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| 46 | def get_tracform_meta(self, src, db=None): |
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| 47 | """ |
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| 48 | Returns the meta information about a form based on a form id (int or |
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| 49 | long) or context (parent realm, parent id, TracForms subcontext). |
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| 50 | """ |
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| 51 | db = self._get_db(db) |
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| 52 | cursor = db.cursor() |
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| 53 | sql = """ |
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| 54 | SELECT id, |
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| 55 | realm, |
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| 56 | resource_id, |
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| 57 | subcontext, |
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| 58 | author, |
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| 59 | time, |
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| 60 | keep_history, |
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| 61 | track_fields |
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| 62 | FROM forms |
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| 63 | """ |
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| 64 | if not isinstance(src, int): |
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| 65 | sql += """ |
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| 66 | WHERE realm=%s |
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| 67 | AND resource_id=%s |
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| 68 | AND subcontext=%s |
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| 69 | """ |
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| 70 | else: |
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| 71 | sql += """ |
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| 72 | WHERE id=%s |
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| 73 | """ |
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| 74 | form_id = None |
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| 75 | realm = None |
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| 76 | resource_id = None |
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| 77 | subcontext = None |
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| 78 | if not isinstance(src, int): |
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| 79 | realm, resource_id, subcontext = src |
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| 80 | else: |
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| 81 | form_id = src |
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| 82 | src = tuple([src],) |
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| 83 | cursor.execute(sql, src) |
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| 84 | return cursor.fetchone() or \ |
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| 85 | (form_id, realm, resource_id, subcontext, |
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| 86 | None, None, None, None) |
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| 87 | |
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| 88 | def get_tracform_state(self, src, db=None): |
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| 89 | db = self._get_db(db) |
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| 90 | cursor = db.cursor() |
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| 91 | sql = """ |
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| 92 | SELECT state |
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| 93 | FROM forms |
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| 94 | """ |
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| 95 | if not isinstance(src, int): |
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| 96 | sql += """ |
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| 97 | WHERE realm=%s |
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| 98 | AND resource_id=%s |
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| 99 | AND subcontext=%s |
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| 100 | """ |
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| 101 | else: |
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| 102 | sql += """ |
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| 103 | WHERE id=%s |
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| 104 | """ |
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| 105 | src = tuple([src],) |
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| 106 | cursor.execute(sql, src) |
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| 107 | row = cursor.fetchone() |
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| 108 | return row and row[0] |
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| 109 | |
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| 110 | def save_tracform(self, src, state, author, |
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| 111 | base_version=None, keep_history=False, |
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| 112 | track_fields=False, db=None): |
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| 113 | (form_id, realm, resource_id, subcontext, last_updater, |
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| 114 | last_updated_on, form_keep_history, |
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| 115 | form_track_fields) = self.get_tracform_meta(src, db=db) |
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| 116 | |
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| 117 | if form_keep_history is not None: |
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| 118 | keep_history = form_keep_history |
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| 119 | old_state = form_id and self.get_tracform_state(form_id) or '{}' |
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| 120 | if form_track_fields is not None: |
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| 121 | track_fields = form_track_fields |
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| 122 | |
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| 123 | if base_version is not None: |
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| 124 | base_version = int(base_version or 0) |
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| 125 | |
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| 126 | if ((base_version is None and last_updated_on is None) or |
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| 127 | (base_version == last_updated_on)): |
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| 128 | if state != old_state: |
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| 129 | updated_on = int(time.time()) |
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| 130 | db = self._get_db(db) |
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| 131 | cursor = db.cursor() |
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| 132 | if form_id is None: |
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| 133 | cursor.execute(""" |
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| 134 | INSERT INTO forms |
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| 135 | (realm, resource_id, subcontext, |
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| 136 | state, author, time) |
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| 137 | VALUES (%s, %s, %s, %s, %s, %s) |
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| 138 | """, (realm, resource_id, subcontext, |
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| 139 | state, author, updated_on)) |
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| 140 | form_id = db.get_last_id(cursor, 'forms') |
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| 141 | else: |
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| 142 | cursor.execute(""" |
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| 143 | UPDATE forms |
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| 144 | SET state=%s, |
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| 145 | author=%s, |
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| 146 | time=%s |
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| 147 | WHERE id=%s |
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| 148 | """, (state, author, updated_on, form_id)) |
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| 149 | if keep_history: |
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| 150 | cursor.execute(""" |
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| 151 | INSERT INTO forms_history |
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| 152 | (id, time, author, old_state) |
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| 153 | VALUES (%s, %s, %s, %s) |
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| 154 | """, (form_id, last_updated_on, |
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| 155 | last_updater, old_state)) |
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| 156 | if track_fields: |
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| 157 | # Break down old version and new version. |
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| 158 | old_fields = json.loads(old_state) |
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| 159 | new_fields = json.loads(state or '{}') |
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| 160 | updated_fields = [] |
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| 161 | for field, old_value in old_fields.iteritems(): |
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| 162 | if new_fields.get(field) != old_value: |
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| 163 | updated_fields.append(field) |
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| 164 | for field in new_fields: |
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| 165 | if old_fields.get(field) is None: |
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| 166 | updated_fields.append(field) |
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| 167 | self.log.debug('UPDATED: ' + str(updated_fields)) |
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| 168 | for field in updated_fields: |
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| 169 | cursor.execute(""" |
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| 170 | SELECT COUNT(*) |
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| 171 | FROM forms_fields |
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| 172 | WHERE id=%s |
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| 173 | AND field=%s""", (form_id, field)) |
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| 174 | if cursor.fetchone()[0] > 0: |
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| 175 | cursor.execute(""" |
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| 176 | UPDATE forms_fields |
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| 177 | SET author=%s, |
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| 178 | time=%s |
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| 179 | WHERE id=%s |
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| 180 | AND field=%s |
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| 181 | """, (author, updated_on, form_id, field)) |
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| 182 | else: |
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| 183 | cursor.execute(""" |
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| 184 | INSERT INTO forms_fields |
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| 185 | (id, field, author, time) |
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| 186 | VALUES (%s, %s, %s, %s) |
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| 187 | """, (form_id, field, author, updated_on)) |
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| 188 | db.commit() |
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| 189 | else: |
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| 190 | updated_on = last_updated_on |
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| 191 | author = last_updater |
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| 192 | return ((form_id, realm, resource_id, subcontext, state, |
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| 193 | author, updated_on), |
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| 194 | (form_id, realm, resource_id, subcontext, old_state, |
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| 195 | last_updater, last_updated_on)) |
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| 196 | else: |
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| 197 | raise ValueError(_("Conflict")) |
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| 198 | |
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| 199 | def get_tracform_history(self, src, db=None): |
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| 200 | db = self._get_db(db) |
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| 201 | cursor = db.cursor() |
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| 202 | if isinstance(src, int): |
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| 203 | form_id = src |
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| 204 | else: |
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| 205 | form_id = self.get_tracform_meta(src, db=db)[0] |
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| 206 | cursor.execute(""" |
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| 207 | SELECT author, time, old_state |
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| 208 | FROM forms_history |
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| 209 | WHERE id=%s |
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| 210 | ORDER BY time DESC |
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| 211 | """, (form_id,)) |
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| 212 | return cursor.fetchall() |
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| 213 | |
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| 214 | def get_tracform_fields(self, src, db=None): |
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| 215 | db = self._get_db(db) |
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| 216 | cursor = db.cursor() |
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| 217 | if isinstance(src, int): |
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| 218 | form_id = src |
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| 219 | else: |
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| 220 | form_id = self.get_tracform_meta(src, db=db)[0] |
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| 221 | cursor.execute(""" |
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| 222 | SELECT field, author, time |
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| 223 | FROM forms_fields |
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| 224 | WHERE id=%s |
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| 225 | """, (form_id,)) |
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| 226 | return cursor.fetchall() |
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| 227 | |
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| 228 | def get_tracform_fieldinfo(self, src, field, db=None): |
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| 229 | """Retrieve author and time of last change per field.""" |
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| 230 | db = self._get_db(db) |
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| 231 | cursor = db.cursor() |
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| 232 | if isinstance(src, int): |
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| 233 | form_id = src |
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| 234 | else: |
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| 235 | form_id = self.get_tracform_meta(src, db=db)[0] |
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| 236 | cursor.execute(""" |
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| 237 | SELECT author, time |
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| 238 | FROM forms_fields |
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| 239 | WHERE id=%s |
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| 240 | AND field=%s |
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| 241 | """, (form_id, field)) |
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| 242 | return cursor.fetchone() or (None, None) |
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| 243 | |
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| 244 | def reset_tracform(self, src, field=None, author=None, step=0, db=None): |
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| 245 | """Delete method for all TracForms db tables. |
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| 246 | |
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| 247 | Note, that we only delete recorded values and history here, while |
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| 248 | the form definition (being part of forms parent resource) is retained. |
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| 249 | Reset of single fields is not implemented, because this would require |
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| 250 | cumbersome and error prown history rewriting - not worth the hassle. |
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| 251 | """ |
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| 252 | db = self._get_db(db) |
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| 253 | cursor = db.cursor() |
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| 254 | form_ids = [] |
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| 255 | # identify form_id(s) to reset |
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| 256 | if isinstance(src, int): |
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| 257 | form_ids.append(src) |
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| 258 | elif isinstance(src, tuple) and len(src) == 3: |
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| 259 | if src[-1] is None: |
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| 260 | # no subcontext given, reset all forms of the parent resource |
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| 261 | for form_id in self.get_tracform_ids(src[0], src[1], db=db): |
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| 262 | form_ids.append(form_id) |
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| 263 | else: |
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| 264 | form_ids.append(self.get_tracform_meta(src, db=db)[0]) |
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| 265 | db = self._get_db(db) |
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| 266 | cursor = db.cursor() |
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| 267 | # restore of old values for multiple forms is not meaningful |
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| 268 | if step == -1 and len(form_ids) == 1: |
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| 269 | form_id = form_ids[0] |
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| 270 | now = int(time.time()) |
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| 271 | author, updated_on, old_state = self.get_tracform_history( |
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| 272 | form_id, db=db)[0] or \ |
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| 273 | (author, now, '{}') |
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| 274 | if updated_on == now: |
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| 275 | # no history recorded, so only form values can be reset |
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| 276 | step = 0 |
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| 277 | else: |
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| 278 | # copy last old_state to current |
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| 279 | cursor.execute(""" |
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| 280 | UPDATE forms |
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| 281 | SET author=%s, |
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| 282 | time=%s, |
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| 283 | state=%s |
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| 284 | WHERE id=%s |
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| 285 | """, (author, updated_on, old_state, form_id)) |
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| 286 | history = [] |
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| 287 | records = self.get_tracform_history(form_id, db=db) |
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| 288 | for history_author, history_time, old_state in records: |
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| 289 | history.append({'author': history_author, |
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| 290 | 'time': history_time, |
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| 291 | 'old_state': old_state}) |
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| 292 | history = parse_history(history, fieldwise=True) |
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| 293 | # delete restored history entry |
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| 294 | cursor.execute(""" |
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| 295 | DELETE |
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| 296 | FROM forms_history |
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| 297 | WHERE id=%s |
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| 298 | AND time=%s |
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| 299 | """, (form_id, updated_on)) |
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| 300 | # rollback field info changes |
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| 301 | for field in history.keys(): |
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| 302 | changes = history[field] |
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| 303 | if len(changes) > 0: |
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| 304 | # restore last field info, unconditional by intention |
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| 305 | # i.e. to not create entries, if track_fields is False |
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| 306 | cursor.execute(""" |
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| 307 | UPDATE forms_fields |
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| 308 | SET author=%s, |
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| 309 | time=%s |
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| 310 | WHERE id=%s |
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| 311 | AND field=%s |
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| 312 | """, (changes[0]['author'], changes[0]['time'], |
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| 313 | form_id, field)) |
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| 314 | else: |
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| 315 | # delete current field info |
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| 316 | cursor.execute(""" |
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| 317 | DELETE |
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| 318 | FROM forms_fields |
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| 319 | WHERE id=%s |
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| 320 | AND field=%s |
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| 321 | """, (form_id, field)) |
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| 322 | if step == 0: |
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| 323 | # reset all fields and delete full history |
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| 324 | for form_id in form_ids: |
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| 325 | cursor.execute(""" |
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| 326 | DELETE |
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| 327 | FROM forms_history |
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| 328 | WHERE id=%s |
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| 329 | """, (form_id,)) |
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| 330 | cursor.execute(""" |
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| 331 | DELETE |
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| 332 | FROM forms_fields |
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| 333 | WHERE id=%s |
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| 334 | """, (form_id,)) |
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| 335 | # don't delete basic form reference but save the reset |
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| 336 | # as a form change to prevent creation of a new form_id |
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| 337 | # for further retention data |
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| 338 | cursor.execute(""" |
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| 339 | UPDATE forms |
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| 340 | SET author=%s, |
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| 341 | time=%s, |
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| 342 | state=%s |
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| 343 | WHERE id=%s |
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| 344 | """, (author, int(time.time()), '{}', form_id)) |
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| 345 | db.commit() |
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| 346 | |
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| 347 | def search_tracforms(self, env, terms, db=None): |
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| 348 | """Backend method for TracForms ISearchSource implementation.""" |
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| 349 | db = self._get_db(db) |
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| 350 | cursor = db.cursor() |
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| 351 | sql, args = search_to_sql(db, ['resource_id', 'subcontext', 'author', |
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| 352 | 'state', db.cast('id', 'text')], terms) |
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| 353 | cursor.execute(""" |
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| 354 | SELECT id,realm,resource_id,subcontext,state,author,time |
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| 355 | FROM forms |
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| 356 | WHERE %s |
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| 357 | """ % sql, args) |
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| 358 | return cursor.fetchall() |
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| 359 | |
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| 360 | ########################################################################## |
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| 361 | # TracForms schemas |
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| 362 | # Hint: See older versions of this file for the original SQL statements. |
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| 363 | # Most of them have been rewritten to imrove compatibility with Trac. |
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| 364 | |
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| 365 | #def dbschema_2008_06_14_0000(self, cursor): |
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| 366 | # """This was a simple test for the schema base class.""" |
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| 367 | |
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| 368 | def db00(self, env, cursor): |
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| 369 | """Create the major tables.""" |
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| 370 | tables = [ |
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| 371 | Table('tracform_forms', key='id')[ |
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| 372 | Column('tracform_id', auto_increment=True), |
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| 373 | Column('context'), |
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| 374 | Column('state'), |
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| 375 | Column('updater'), |
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| 376 | Column('updated_on', type='int')], |
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| 377 | Table('tracform_history')[ |
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| 378 | Column('tracform_id', type='int'), |
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| 379 | Column('updater'), |
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| 380 | Column('updated_on', type='int'), |
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| 381 | Column('old_states')] |
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| 382 | ] |
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| 383 | db_connector, _ = DatabaseManager(env)._get_connector() |
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| 384 | for table in tables: |
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| 385 | for stmt in db_connector.to_sql(table): |
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| 386 | cursor.execute(stmt) |
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| 387 | |
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| 388 | def db01(self, env, cursor): |
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| 389 | """Create indices for tracform_forms table.""" |
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| 390 | cursor.execute(""" |
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| 391 | CREATE INDEX tracform_forms_context |
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| 392 | ON tracform_forms(context) |
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| 393 | """) |
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| 394 | cursor.execute(""" |
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| 395 | CREATE INDEX tracform_forms_updater |
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| 396 | ON tracform_forms(updater) |
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| 397 | """) |
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| 398 | cursor.execute(""" |
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| 399 | CREATE INDEX tracform_forms_updated_on |
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| 400 | ON tracform_forms(updated_on) |
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| 401 | """) |
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| 402 | |
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| 403 | def db02(self, env, cursor): |
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| 404 | """This was a modify table, but instead removed the data altogether. |
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| 405 | """ |
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| 406 | |
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| 407 | def db03(self, env, cursor): |
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| 408 | """Create indices for tracform_history table.""" |
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| 409 | cursor.execute(""" |
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| 410 | CREATE INDEX tracform_history_tracform_id |
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| 411 | ON tracform_history(tracform_id) |
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| 412 | """) |
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| 413 | # 'DESC' order removed for compatibility with PostgreSQL |
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| 414 | cursor.execute(""" |
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| 415 | CREATE INDEX tracform_history_updated_on |
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| 416 | ON tracform_history(updated_on) |
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| 417 | """) |
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| 418 | cursor.execute(""" |
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| 419 | CREATE INDEX tracform_history_updater |
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| 420 | ON tracform_history(updater) |
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| 421 | """) |
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| 422 | |
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| 423 | def db04(self, env, cursor): |
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| 424 | """Recreating updated_on index for tracform_forms to be descending. |
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| 425 | """ |
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| 426 | # Providing compatibility for PostgreSQL this is now obsolete, |
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| 427 | # removing misspelled index name creation SQL statement too. |
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| 428 | |
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| 429 | def db10(self, env, cursor): |
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| 430 | """Also maintain whether history should be maintained for form.""" |
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| 431 | cursor.execute(""" |
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| 432 | ALTER TABLE tracform_forms |
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| 433 | ADD keep_history INTEGER |
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| 434 | """) |
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| 435 | |
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| 436 | def db11(self, env, cursor): |
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| 437 | """Make the context a unique index.""" |
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| 438 | if env.config.get('trac', 'database').startswith('mysql'): |
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| 439 | cursor.execute(""" |
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| 440 | ALTER TABLE tracform_forms DROP INDEX tracform_forms_context |
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| 441 | """) |
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| 442 | else: |
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| 443 | cursor.execute(""" |
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| 444 | DROP INDEX tracform_forms_context |
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| 445 | """) |
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| 446 | cursor.execute(""" |
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| 447 | CREATE UNIQUE INDEX tracform_forms_context |
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| 448 | ON tracform_forms(context) |
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| 449 | """) |
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| 450 | |
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| 451 | def db12(self, env, cursor): |
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| 452 | """Track who changes individual fields.""" |
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| 453 | cursor.execute(""" |
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| 454 | ALTER TABLE tracform_forms |
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| 455 | ADD track_fields INTEGER |
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| 456 | """) |
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| 457 | table = Table('tracform_fields')[ |
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| 458 | Column('tracform_id', type='int'), |
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| 459 | Column('field'), |
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| 460 | Column('updater'), |
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| 461 | Column('updated_on', type='int'), |
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| 462 | Index(['tracform_id', 'field'], unique=True) |
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| 463 | ] |
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| 464 | db_connector, _ = DatabaseManager(env)._get_connector() |
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| 465 | for stmt in db_connector.to_sql(table): |
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| 466 | cursor.execute(stmt) |
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| 467 | |
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| 468 | def db13(self, env, cursor): |
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| 469 | """Convert state serialization type to be more readable. |
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| 470 | |
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| 471 | Migrate to slicker named major tables and associated indexes too. |
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| 472 | """ |
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| 473 | table = Table('forms', key='id')[ |
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| 474 | Column('id', auto_increment=True), |
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| 475 | Column('context'), |
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| 476 | Column('state'), |
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| 477 | Column('author'), |
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| 478 | Column('time', type='int'), |
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| 479 | Column('keep_history', type='int'), |
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| 480 | Column('track_fields', type='int'), |
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| 481 | Index(['context'], unique=True), |
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| 482 | Index(['author']), |
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| 483 | Index(['time']) |
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| 484 | ] |
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| 485 | db_connector, _ = DatabaseManager(env)._get_connector() |
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| 486 | for stmt in db_connector.to_sql(table): |
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| 487 | cursor.execute(stmt) |
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| 488 | |
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| 489 | forms_columns = ('tracform_id', 'context', 'state', 'updater', |
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| 490 | 'updated_on', 'keep_history', 'track_fields') |
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| 491 | forms_columns_new = ('id', 'context', 'state', 'author', |
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| 492 | 'time', 'keep_history', 'track_fields') |
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| 493 | |
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| 494 | sql = 'SELECT ' + ', '.join(forms_columns) + ' FROM tracform_forms' |
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| 495 | cursor.execute(sql) |
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| 496 | forms = [] |
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| 497 | for row in cursor: |
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| 498 | row = dict(zip(forms_columns_new, row)) |
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| 499 | forms.append(row) |
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| 500 | |
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| 501 | # convert current states serialization |
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| 502 | for form in forms: |
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| 503 | state_new = _url_to_json(form.get('state')) |
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| 504 | if state_new == '{}': |
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| 505 | form['state'] = form.get('state') |
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| 506 | else: |
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| 507 | form['state'] = state_new |
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| 508 | |
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| 509 | for form in forms: |
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| 510 | fields = form.keys() |
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| 511 | values = form.values() |
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| 512 | sql = "INSERT INTO forms (" + ", ".join(fields) + \ |
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| 513 | ") VALUES (" + ", ".join(["%s" for I in xrange(len(fields))]) \ |
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| 514 | + ")" |
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| 515 | cursor.execute(sql, values) |
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| 516 | |
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| 517 | cursor.execute(""" |
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| 518 | DROP TABLE tracform_forms |
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| 519 | """) |
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| 520 | # migrate history table |
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| 521 | if env.config.get('trac', 'database').startswith('postgres'): |
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| 522 | cursor.execute(""" |
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| 523 | CREATE TABLE forms_history |
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| 524 | AS SELECT |
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| 525 | tracform_id AS id, updated_on AS time, |
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| 526 | updater AS author, old_states AS old_state |
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| 527 | FROM tracform_history |
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| 528 | """) |
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| 529 | else: |
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| 530 | cursor.execute(""" |
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| 531 | CREATE TABLE forms_history |
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| 532 | AS SELECT |
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| 533 | tracform_id 'id', updated_on 'time', |
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| 534 | updater 'author', old_states 'old_state' |
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| 535 | FROM tracform_history |
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| 536 | """) |
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| 537 | |
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| 538 | sql = 'SELECT id,time,old_state FROM forms_history' |
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| 539 | cursor.execute(sql) |
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| 540 | history = [] |
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| 541 | for row in cursor: |
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| 542 | row = dict(zip(('id', 'time', 'old_state'), row)) |
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| 543 | history.append(row) |
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| 544 | |
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| 545 | # convert historic states serialization |
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| 546 | for row in history: |
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| 547 | old_state_new = _url_to_json(row.get('old_state')) |
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| 548 | if old_state_new == '{}': |
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| 549 | row['old_state'] = row.get('old_state') |
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| 550 | else: |
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| 551 | row['old_state'] = old_state_new |
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| 552 | |
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| 553 | for row in history: |
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| 554 | sql = "UPDATE forms_history SET old_state=%s " + \ |
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| 555 | "WHERE id=%s AND time=%s" |
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| 556 | cursor.execute(sql, (row['old_state'], row['id'], row['time'])) |
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| 557 | |
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| 558 | cursor.execute(""" |
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| 559 | CREATE INDEX forms_history_id_idx |
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| 560 | ON forms_history(id) |
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| 561 | """) |
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| 562 | # 'DESC' order removed for compatibility with PostgreSQL |
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| 563 | cursor.execute(""" |
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| 564 | CREATE INDEX forms_history_time_idx |
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| 565 | ON forms_history(time) |
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| 566 | """) |
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| 567 | cursor.execute(""" |
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| 568 | CREATE INDEX forms_history_author_idx |
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| 569 | ON forms_history(author) |
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| 570 | """) |
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| 571 | cursor.execute(""" |
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| 572 | DROP TABLE tracform_history |
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| 573 | """) |
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| 574 | # migrate fields table |
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| 575 | if env.config.get('trac', 'database').startswith('postgres'): |
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| 576 | cursor.execute(""" |
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| 577 | CREATE TABLE forms_fields |
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| 578 | AS SELECT |
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| 579 | tracform_id AS id, field, |
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| 580 | updater AS author, updated_on AS time |
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| 581 | FROM tracform_fields |
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| 582 | """) |
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| 583 | else: |
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| 584 | cursor.execute(""" |
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| 585 | CREATE TABLE forms_fields |
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| 586 | AS SELECT |
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| 587 | tracform_id 'id', field, |
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| 588 | updater 'author', updated_on 'time' |
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| 589 | FROM tracform_fields |
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| 590 | """) |
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| 591 | cursor.execute(""" |
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| 592 | CREATE UNIQUE INDEX forms_fields_id_field_idx |
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| 593 | ON forms_fields(id, field) |
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| 594 | """) |
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| 595 | cursor.execute(""" |
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| 596 | DROP TABLE tracform_fields |
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| 597 | """) |
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| 598 | # remove old TracForms version entry |
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| 599 | cursor.execute(""" |
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| 600 | DELETE FROM system WHERE name='TracFormDBComponent:version'; |
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| 601 | """) |
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| 602 | |
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| 603 | def db14(self, env, cursor): |
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| 604 | """Split context into proper Trac resource descriptors.""" |
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| 605 | cursor.execute(""" |
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| 606 | CREATE TABLE forms_old |
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| 607 | AS SELECT * |
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| 608 | FROM forms |
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| 609 | """) |
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| 610 | cursor.execute(""" |
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| 611 | DROP TABLE forms |
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| 612 | """) |
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| 613 | table = Table('forms', key='id')[ |
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| 614 | Column('id', auto_increment=True), |
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| 615 | Column('realm'), |
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| 616 | Column('resource_id'), |
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| 617 | Column('subcontext'), |
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| 618 | Column('state'), |
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| 619 | Column('author'), |
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| 620 | Column('time', type='int'), |
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| 621 | Column('keep_history', type='int'), |
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| 622 | Column('track_fields', type='int'), |
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| 623 | Index(['realm', 'resource_id', 'subcontext'], unique=True), |
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| 624 | Index(['author']), |
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| 625 | Index(['time']) |
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| 626 | ] |
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| 627 | db_connector, _ = DatabaseManager(env)._get_connector() |
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| 628 | for stmt in db_connector.to_sql(table): |
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| 629 | cursor.execute(stmt) |
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| 630 | |
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| 631 | forms_columns = ('id', 'context', 'state', 'author', |
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| 632 | 'time', 'keep_history', 'track_fields') |
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| 633 | |
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| 634 | sql = 'SELECT ' + ', '.join(forms_columns) + ' FROM forms_old' |
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| 635 | cursor.execute(sql) |
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| 636 | forms = [] |
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| 637 | for row in cursor: |
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| 638 | row = dict(zip(forms_columns, row)) |
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| 639 | # extract realm, resource_id and subcontext from context |
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| 640 | row['realm'], row['resource_id'], row['subcontext'] = \ |
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| 641 | _context_to_resource(self.env, row.pop('context')) |
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| 642 | forms.append(row) |
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| 643 | |
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| 644 | for form in forms: |
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| 645 | fields = form.keys() |
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| 646 | values = form.values() |
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| 647 | sql = "INSERT INTO forms (" + ", ".join(fields) + \ |
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| 648 | ") VALUES (" + ", ".join(["%s" for I in xrange(len(fields))]) \ |
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| 649 | + ")" |
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| 650 | cursor.execute(sql, values) |
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| 651 | |
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| 652 | cursor.execute(""" |
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| 653 | DROP TABLE forms_old |
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| 654 | """) |
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| 655 | |
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| 656 | |
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| 657 | def _url_to_json(state_url): |
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| 658 | """Convert urlencoded state serial to JSON state serial.""" |
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| 659 | state = parse_qs(state_url) |
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| 660 | for name, value in state.iteritems(): |
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| 661 | if isinstance(value, (list, tuple)): |
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| 662 | for item in value: |
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| 663 | state[name] = xml_unescape(item) |
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| 664 | else: |
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| 665 | state[name] = xml_unescape(value) |
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| 666 | return json.dumps(state, separators=(',', ':')) |
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| 667 | |
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| 668 | def _context_to_resource(env, context): |
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| 669 | """Find parent realm and resource_id and optional TracForms subcontext. |
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| 670 | |
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| 671 | Some guesswork is knowingly involved here to finally overcome previous |
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| 672 | potentially ambiguous contexts by distinct resource parameters. |
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| 673 | """ |
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| 674 | realm, resource_path = resource_from_page(env, context) |
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| 675 | subcontext = None |
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| 676 | if resource_path is not None: |
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| 677 | # ambiguous: ':' could be part of resource_id or subcontext or |
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| 678 | # the start of subcontext |
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| 679 | segments = re.split(':', resource_path) |
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| 680 | id = '' |
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| 681 | resource_id = None |
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| 682 | while len(segments) > 0: |
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| 683 | id += segments.pop(0) |
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| 684 | # guess: shortest valid resource_id is parent, |
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| 685 | # the rest is a TracForms subcontext |
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| 686 | if resource_exists(env, Resource(realm, id)): |
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| 687 | resource_id = id |
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| 688 | subcontext = ':'.join(segments) |
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| 689 | break |
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| 690 | id += ':' |
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| 691 | # valid resource_id in context NOT FOUND |
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| 692 | if resource_id is None: |
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| 693 | resource_id = resource_path |
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| 694 | else: |
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| 695 | # realm in context NOT FOUND |
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| 696 | resource_id = context |
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| 697 | realm = '' |
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| 698 | return realm, resource_id, subcontext |
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| 699 | |
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| 700 | |
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| 701 | if __name__ == '__main__': |
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| 702 | from trac.test import EnvironmentStub |
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| 703 | env = EnvironmentStub() |
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| 704 | db = FormDBComponent(env) |
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| 705 | db.upgrade_environment(None) |
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| 706 | updated_on_1 = db.save_tracform('/', 'hello world', 'me')[0][4] |
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| 707 | assert db.get_tracform_state('/') == 'hello world' |
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| 708 | updated_on_2 = \ |
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| 709 | db.save_tracform('/', 'ack oop', 'you', updated_on_1)[0][4] |
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| 710 | assert db.get_tracform_state('/') == 'ack oop' |
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| 711 | assert tuple(db.get_tracform_history('/')) == ( |
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| 712 | ('me', updated_on_1, 'hello world'), |
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| 713 | ) |
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| 714 | |
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