Changes between Initial Version and Version 1 of TracTicketsCustomFields

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08/22/08 18:11:06 (6 years ago)
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trac
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  • TracTicketsCustomFields

    v1 v1  
     1= Custom Ticket Fields = 
     2Trac supports adding custom, user-defined fields to the ticket module. Using custom fields, you can add typed, site-specific properties to tickets. 
     3 
     4== Configuration == 
     5Configuring custom ticket fields is done in the [wiki:TracIni trac.ini] file. All field definitions should be under a section named `[ticket-custom]`. 
     6 
     7The syntax of each field definition is: 
     8{{{ 
     9 FIELD_NAME = TYPE 
     10 (FIELD_NAME.OPTION = VALUE) 
     11 ... 
     12}}} 
     13The example below should help to explain the syntax. 
     14 
     15=== Available Field Types and Options === 
     16 * '''text''': A simple (one line) text field. 
     17   * label: Descriptive label. 
     18   * value: Default value. 
     19   * order: Sort order placement. (Determines relative placement in forms with respect to other custom fields.) 
     20 * '''checkbox''': A boolean value check box. 
     21   * label: Descriptive label. 
     22   * value: Default value (0 or 1). 
     23   * order: Sort order placement. 
     24 * '''select''': Drop-down select box. Uses a list of values. 
     25   * label: Descriptive label. 
     26   * options: List of values, separated by '''|''' (vertical pipe). 
     27   * value: Default value (one of the values from options). 
     28   * order: Sort order placement. 
     29 * '''radio''': Radio buttons. Essentially the same as '''select'''. 
     30   * label: Descriptive label. 
     31   * options: List of values, separated by '''|''' (vertical pipe). 
     32   * value: Default value (one of the values from options). 
     33   * order: Sort order placement. 
     34 * '''textarea''': Multi-line text area. 
     35   * label: Descriptive label. 
     36   * value: Default text. 
     37   * cols: Width in columns. 
     38   * rows: Height in lines. 
     39   * order: Sort order placement. 
     40 
     41=== Sample Config === 
     42{{{ 
     43[ticket-custom] 
     44 
     45test_one = text 
     46test_one.label = Just a text box 
     47 
     48test_two = text 
     49test_two.label = Another text-box 
     50test_two.value = Just a default value 
     51 
     52test_three = checkbox 
     53test_three.label = Some checkbox 
     54test_three.value = 1 
     55 
     56test_four = select 
     57test_four.label = My selectbox 
     58test_four.options = one|two|third option|four 
     59test_four.value = two 
     60 
     61test_five = radio 
     62test_five.label = Radio buttons are fun 
     63test_five.options = uno|dos|tres|cuatro|cinco 
     64test_five.value = dos 
     65 
     66test_six = textarea 
     67test_six.label = This is a large textarea 
     68test_six.value = Default text 
     69test_six.cols = 60 
     70test_six.rows = 30 
     71}}} 
     72 
     73''Note: To make entering an option for a `select` type field optional, specify a leading `|` in the `fieldname.options` option.'' 
     74 
     75=== Reports Involving Custom Fields === 
     76 
     77Custom ticket fields are stored in the `ticket_custom` table, not in the `ticket` table. So to display the values from custom fields in a report, you will need a join on the 2 tables. Let's use an example with a custom ticket field called `progress`. 
     78 
     79{{{ 
     80#!sql 
     81SELECT p.value AS __color__, 
     82   id AS ticket, summary, owner, c.value AS progress 
     83  FROM ticket t, enum p, ticket_custom c 
     84  WHERE status IN ('assigned') AND t.id = c.ticket AND c.name = 'progress' 
     85AND p.name = t.priority AND p.type = 'priority' 
     86  ORDER BY p.value 
     87}}} 
     88'''Note''' that this will only show tickets that have progress set in them, which is '''not the same as showing all tickets'''. If you created this custom ticket field ''after'' you have already created some tickets, they will not have that field defined, and thus they will never show up on this ticket query. If you go back and modify those tickets, the field will be defined, and they will appear in the query. If that's all you want, you're set. 
     89 
     90However, if you want to show all ticket entries (with progress defined and without), you need to use a `JOIN` for every custom field that is in the query. 
     91{{{ 
     92#!sql 
     93SELECT p.value AS __color__, 
     94   id AS ticket, summary, component, version, milestone, severity, 
     95   (CASE status WHEN 'assigned' THEN owner||' *' ELSE owner END) AS owner, 
     96   time AS created, 
     97   changetime AS _changetime, description AS _description, 
     98   reporter AS _reporter, 
     99  (CASE WHEN c.value = '0' THEN 'None' ELSE c.value END) AS progress 
     100  FROM ticket t 
     101     LEFT OUTER JOIN ticket_custom c ON (t.id = c.ticket AND c.name = 'progress') 
     102     JOIN enum p ON p.name = t.priority AND p.type='priority' 
     103  WHERE status IN ('new', 'assigned', 'reopened') 
     104  ORDER BY p.value, milestone, severity, time 
     105}}} 
     106 
     107Note in particular the `LEFT OUTER JOIN` statement here. 
     108 
     109=== Updating the database === 
     110 
     111As noted above, any tickets created before a custom field has been defined will not have a value for that field. Here's a bit of SQL (tested with SQLite) that you can run directly on the Trac database to set an initial value for custom ticket fields. Inserts the default value of 'None' into a custom field called 'request_source' for all tickets that have no existing value: 
     112 
     113{{{ 
     114#!sql 
     115INSERT INTO ticket_custom 
     116   (ticket, name, value) 
     117   SELECT  
     118      id AS ticket, 
     119      'request_source' AS name, 
     120      'None' AS value 
     121   FROM ticket  
     122   WHERE id NOT IN ( 
     123      SELECT ticket FROM ticket_custom 
     124   ); 
     125}}} 
     126 
     127If you added multiple custom fields at different points in time, you should be more specific in the subquery on table {{{ticket}}} by adding the exact custom field name to the query: 
     128 
     129{{{ 
     130#!sql 
     131INSERT INTO ticket_custom 
     132   (ticket, name, value) 
     133   SELECT  
     134      id AS ticket, 
     135      'request_source' AS name, 
     136      'None' AS value 
     137   FROM ticket  
     138   WHERE id NOT IN ( 
     139      SELECT ticket FROM ticket_custom WHERE name = 'request_source' 
     140   ); 
     141}}} 
     142 
     143---- 
     144See also: TracTickets, TracIni