|Version 43 (modified by 4 years ago) (diff),|
Trac jsGantt plugin
A plugin which allows Trac ticket data to be displayed in a jsGantt chart in a wiki page. Tasks and milestones are links to the corresponding ticket or milestone.
Configurable field names allow integration with other plugins such as MasterTicketsPlugin (for dependencies), SubticketsPlugin (for parent/child relationships) and TimingAndEstimationPlugin (for estimated and total hours).
[[TracJSGanttChart(sample=1)]] displays the sample project from jsgantt.com.
[[TracJSGanttChart(milestone=Test)]] displays all the tickets in the Test milestone.
The chart display can be controlled with a number of macro arguments:
| ||Caption to place to right of tasks: None, || |
| ||Show (|| |
| ||Field to use to color tasks. Useful fields are || |
| ||Format to display dates: || |
| ||0.10||Filter for limiting display of tickets. ||None|
| ||0.10||Resolve resource conflicts (1) or not (0) when scheduling tickets.||0|
| ||Show (|| |
| ||Show (|| |
| ||0.9||Show (|| |
| ||Initial display format, one of those listed in || |
| ||Formats to show for Gantt chart. A pipe-separated list of || |
| ||0.9||Ticket(s) to show predecessors of. When using something like MasterTicketsPlugin to maintain ticket dependencies, you may create a Gantt showing a ticket and all of its predecessors with |
Multiple goals may be provided like
When used in a ticket description or comment,
| ||Hours worked per day|| |
| ||Width (in pixels) of left table (The one contains task names, etc. on the left of the Gantt chart.)||None|
| ||0.8||Show milestones for displayed tickets (|| |
| ||How many levels of task hierarchy to show open. || |
| ||Show (|| |
| ||Ticket(s) to show descendants of. When using something like Subtickets plugin to maintain a tree of tickets and subtickets, you may create a Gantt showing a ticket and all of its descendants with |
Multiple roots may be provided like
When used in a ticket description or comment,
| ||Display (|| |
| ||Schedule algorithm: as-last-as-possible (|| |
| ||Show (|| |
| ||Show (|| |
| ||0.8||Map (|| |
| ||Order of fields used to sort tickets before display. ||wbs|
| ||Date to scroll to when chart is initially drawn. A date in ||None|
Site-wide defaults for macro arguments may be set in the
[trac-jsgantt] section of
option.<opt> overrides the built-in default for
<opt> from the table above.
All other macro arguments are treated as TracQuery specification (e.g., milestone=MS1|MS2) to control which tickets are displayed.
The TracPM module provides several interfaces that can be implemented to adapt the Project Management (PM) features to local business rules. (The TracPM module will be a separate plugin in the future.) These interfaces are defined in
TracPM defers decisions about ticket ordering to an
- Before any comparison is done,
ITaskSorter.prepareTasks()is called so that complex keys can be precomputed, external data can be prefetched, etc. to make the comparisons faster and easier.
prepareTasks()is passed a hash of ticket (tasks). The index of the hash is the ticket ID. The elements of the hash are hashes of Trac ticket attributes. They are not Trac ticket objects.
prepareTasks()can add to or modify attributes of the ticket. The changes or additions will be available through the life of the scheduling process but will be safely removed before the tickets are returned to the caller.
- When making decisions about which ticket to schedule first, TracPM sorts the candidate tickets with
compareTasks()is passed two hashes, the attributes of the two tickets to compare. Any attributes added or changed by
prepareTasks()are available to
class ITaskSorter(Interface): # Process task list to precompute keys or otherwise make # compareTasks() more efficient. def prepareTasks(self, ticketsByID): """Called to prepare tasks for sorting.""" # Provide a compare function for sorting tasks. # Maybe be used as cmp argument for sorted(), and list.sort(). # Returns -1 if t1 < t2, 0 if they are equal, 1 if t1 > t2. def compareTasks(self, t1, t2): """Called to compare two tasks"""
TracPM provides two implementations of
prepareTasks()prefetches the numeric priority values and gives an average priority to any ticket without one.
compareTasks()compares tickets based only on their numeric priority
prepareTasks()prefetches the numeric priority values and computes an "effective priority" for each ticket that takes into account its parent's ticket's priority. A high priority child of a low priority parent has a lower effective priority than a low priority child of a high priority parent.
compareTasks()compares tickets based only on their effective priority.
SimpleSorter is used by default if no sorter is enabled in
ProjectSorter are both derived from
BaseSorter which provides several functions which may be useful in implementing custom sorters.
_buildEnumMap(field)gets numeric values from the Trac database for enums such as priority and severity. The built-in sorters use it to retrieve values for the priority field in their constructor. It returns a hash, containing numeric values and indexed by name (e.g., 'major').
averageEnum()computes the average value in the hash returned by
compareOneField(field, t1, t2)compares two tickets based on just one field.
TracPM defers decisions about resource availability to an
- When scheduling a task, TracPM calls
IResourceCalendar.hoursAvailable()to determine how much of a task can be done on a date.
class IResourceCalendar(Interface): # Return the number of hours available for the resource on the # specified date. def hoursAvailable(self, date, resource = None): """Called to see how many hours are available on date"""
TracPM provides one implementation of
hoursAvailable()returns 8 for Monday through Friday and 0 for Saturday and Sunday.
An adapter to interface TeamCalendarPlugin` with TracPM is underdevelopment.
An interface for task schedulers exists but it not yet well documented.
- Install globally with:
sudo easy_install https://trac-hacks.org/svn/tracjsganttplugin/0.11/
- Enable the plugin by updating TracIni file (..../trac.ini) as follows:
[components] tracjsgantt.* = enabled
- Configure the project management support for the plugin in its own configuration section, placed into 'trac.ini' file as follows:
[TracPM] # To work with TimingAndEstimationPlugin for percent complete, define ticket fields to use as the data source for: fields.estimate = estimatedhours fields.worked = totalhours # Each unit in estimate is 1/8 of a day days_per_estimate = 0.125 # To work with MasterTicketsPlugin for dependencies, define ticket fields to use as the data source for predecessor (pred) and successor (succ). fields.pred = blockedby fields.succ = blocking # Alternatively, configure a pred-succ relation like: # relation.pred-succ = mastertickets,source,dest # This causes TracPM to query the mastertickets table rather than # parse blockedby and blocking custom fields. This can be somewhat # faster. # To work with SubticketsPlugin for parent/child relationships, # Ticket field to use as the data source for the parent fields.parent = parents # Alternatively, configure a parent-child relation like: # relation.parent-child = subtickets,parent,child # This causes TracPM to query the subtickets table rather than parse # the `parents` custom field. This can be somewhat faster. # When using SubticketsPlugin via a parent-child relation, do not # configure a parent_format (next). # To work with ChildTickets plugin parent_format, '#%s', # Format of ticket IDs in parent field (default: %s). parent_format = %s # Custom fields for start and due dates # Ticket field to use as the data source for start date (default: None) fields.start = userstart # Ticket field to use as the data source for finish date (default: None) fields.finish = userfinish # Format for ''start'' and ''finish'' date strings (default: '%Y-%m-%d') date_format = %Y-%m-%d # Ticket type for milestone-like tickets (default: 'milestone') # Used to be milestone_type, that setting is now deprecated. goal_ticket_type = milestone # Ticket field to use as the data source for the percent complete column (default: None). fields.percent = complete # Hours represented by each unit of estimated work (default: 1). hours_per_estimate = 1 # Default work for an unestimated task, same units as estimate (default: 4.0). default_estimate = 4.0 # How much work may be remaining when a task goes over estimate, same units as estimate (default: 0.0).. estimate_pad = 0.0
- See configuration details below for explanations and more options.
- Additionally, site-wide defaults for macro arguments may be set at [trac-jsgantt] section. More details about them see #Arguments section.
[trac-jsgantt] option.formats = day|week|month|quarter option.format = month ## How and which 'columns' to show option.lwidth = 300 option.res = 0 option.dur = 0 option.comp = 0 option.startDate = 0 option.endDate = 1 option.dateDisplay = yyyy-mm-dd ## How and what to show on Gantt graph option.showdep = 1 option.expandClosedTickets = 1 option.schedule = asap option.openLevel = 0 option.colorBy = priority option.userMap = 0 option.omitMilestone = 0 option.caption = Resource option.hoursPerDay = 8.0
- Restart web server on command line:
$ sudo /etc/init.d/apache2 restart
TracJsGanttPlugin is intended to be flexible enough to get data from various plugins by configuring the field names for those plugins in
trac.ini. It is known to work with TimingAndEstimationPlugin (for estimated and total hours), MasterTicketsPlugin (for FS dependencies), and SubticketsPlugin for parent/child relationships. Custom fields for start and finish date are also supported.
All of the
fields.* items name custom fields which may contain data for the Gantt.
fields.workedare both configured, the plugin attempts to display (100 *
fields.estimate) as the percent complete. The example works with TimingAndEstimationPlugin. Alternatively, if
percentis configured, the plugin attempts to display it as the percent complete (it should be a number from 0 to 100). If none of those are configured, all tasks will be marked as 0% complete.
fields.succare configured the plugin uses them to determine the task dependencies. The example works with MasterTicketsPlugin. If these fields are not configured, no dependencies are shown.
fields.parentis configured, it is the field which holds the parent ticket number. The example works with SubticketsPlugin. If this field is not configured, no parent/child relationship will be displayed. If it is configured, the Gantt can be collapsed by the user to show or hide subtasks. (
parent_formatdetermines the format of the content of the
parentfield. Use "%s" (default) for SubticketsPlugin, or "#%s" for ChildTicketsPlugin.)
fields.finishare configured, the plugin uses them to set task start and finish dates. The
date_formatfield is a Python
strptime()format specifier which describes the contents of
fields.finish. If these fields are not configured, all tasks end today and have a 1-day duration.
fields.finishare both configured (and
fields.startis not configured or not on the ticket), the plugin attempts to determine the start of the task from
start = fields.finish - fields.estimatewith consideration for weekends and hours per day.
goal_ticket_typemay be used to have a custom ticket type show up as milestones on the chart. If this field is not specified, only Trac milestones are displayed as milestones.
Existing bugs and feature requests for TracJsGanttPlugin are here.
If you have any issues, create a new ticket.
- Display a legend of task colors and their meaning (e.g., which milestone or owner they represent).
- Allow some tasks to be open or closed by default.
- Display critical path
- Display slack time
Source & Download
Download the zipped source from [download:tracjsganttplugin here].
- 14208 by ChrisNelson on 2014-10-14 17:39:23
Fix a typo. Refs #9648.
- 14207 by ChrisNelson on 2014-10-14 17:18:33
Use Trac 1.0 DB API to find active tickets. Refs #9648.
- 14206 by ChrisNelson on 2014-10-14 17:18:28
Use Trac 1.0 DB API to find tickets by owner. Refs #9648.
- 14205 by ChrisNelson on 2014-10-14 17:18:23
Use Trac 1.0 DB API to find owners. Refs #9648.
- 14204 by ChrisNelson on 2014-10-14 17:18:17
Use Trc 1.0 DB API to build enum map. Refs #9648.
- 14203 by ChrisNelson on 2014-10-14 17:18:12
Use Trac 1.0 DB API to follow relations. Refs #9648.
- 14202 by ChrisNelson on 2014-10-14 17:18:05
Use Trac 1.0 DB API to find ticket dates. Refs #9648.
- 14201 by ChrisNelson on 2014-10-14 17:18:00
Use Trac 1.0 DB API to find milestones. Refs #9648.
- 14200 by ChrisNelson on 2014-10-14 17:17:55
Use Trac 1.0 DB API for finding scheduled tickets. Refs #9648.
- 14199 by ChrisNelson on 2014-10-14 17:17:48
Use Trac 1.0 DB API to follow links. Refs #9648.