Changes between Version 4 and Version 5 of TracReports
- Timestamp:
- Mar 25, 2015, 3:59:43 PM (10 years ago)
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TracReports
v4 v5 30 30 31 31 == Changing Report Numbering == 32 There may be instances where you need to change the ID of the report, perhaps to organize the reports better. At present this requires changes to the trac database. The ''report'' table has the following schema ''(since 0.10)'':32 There may be instances where you need to change the ID of the report, perhaps to organize the reports better. At present this requires changes to the trac database. The ''report'' table has the following schema: 33 33 * id integer PRIMARY KEY 34 34 * author text … … 47 47 Clicking on one of the report results will take you to that ticket. You can navigate through the results by clicking the ''Next Ticket'' or ''Previous Ticket'' links just below the main menu bar, or click the ''Back to Report'' link to return to the report page. 48 48 49 You can safely edit any of the tickets and continue to navigate through the results using the ''!Next/Previous/Back to Report'' links after saving your results, but when you return to the report, there will be no hint about what has changed, as would happen if you were navigating a list of tickets obtained from a query (see TracQuery#NavigatingTickets). ''(since 0.11)''49 You can safely edit any of the tickets and continue to navigate through the results using the ''!Next/Previous/Back to Report'' links after saving your results, but when you return to the report, there will be no hint about what has changed, as would happen if you were navigating a list of tickets obtained from a query (see TracQuery#NavigatingTickets). 50 50 51 51 == Alternative Download Formats == … … 69 69 70 70 ''Creating a custom report requires a comfortable knowledge of SQL.'' 71 72 '''Note that you need to set up [TracPermissions#Reports permissions] in order to see the buttons for adding or editing reports.''' 71 73 72 74 A report is basically a single named SQL query, executed and presented by … … 107 109 }}} 108 110 109 ---110 111 111 112 == Advanced Reports: Dynamic Variables == … … 146 147 }}} 147 148 148 149 ----150 149 151 150 … … 155 154 specialized SQL statements to control the output of the Trac report engine. 156 155 157 == Special Columns==156 === Special Columns === 158 157 To format reports, TracReports looks for 'magic' column names in the query 159 158 result. These 'magic' names are processed and affect the layout and style of the … … 164 163 * '''id''' — same as '''ticket''' above when '''realm''' is not set 165 164 * '''realm''' — together with '''id''', can be used to create links to other resources than tickets (e.g. a realm of ''wiki'' and an ''id'' to a page name will create a link to that wiki page) 165 - for some kind of resources, it may be necessary to specify their ''parent'' resources (e.g. for ''changeset'', which ''repos'') and this can be achieved using the '''parent_realm''' and '''parent_id''' columns 166 166 * '''created, modified, date, time''' — Format cell as a date and/or time. 167 167 * '''description''' — Ticket description field, parsed through the wiki engine. … … 193 193 </div> 194 194 }}} 195 * '''`__style__`''' — A custom CSS style expression to use for the current row. 195 * '''`__style__`''' — A custom CSS style expression to use on the `<tr>` element of the current row. 196 * '''`__class__`''' — Zero or more space-separated CSS class names to be set on the `<tr>` element of the current row. These classes are added to the class name derived from `__color__` and the odd / even indicator. 196 197 197 198 '''Example:''' ''List active tickets, grouped by milestone, group header linked to milestone page, colored by priority'' … … 244 245 === Reporting on custom fields === 245 246 246 If you have added custom fields to your tickets ( a feature since v0.8,see TracTicketsCustomFields), you can write a SQL query to cover them. You'll need to make a join on the ticket_custom table, but this isn't especially easy.247 If you have added custom fields to your tickets (see TracTicketsCustomFields), you can write a SQL query to cover them. You'll need to make a join on the ticket_custom table, but this isn't especially easy. 247 248 248 249 If you have tickets in the database ''before'' you declare the extra fields in trac.ini, there will be no associated data in the ticket_custom table. To get around this, use SQL's "LEFT OUTER JOIN" clauses. See [trac:TracIniReportCustomFieldSample TracIniReportCustomFieldSample] for some examples. 249 250 250 '''Note that you need to set up permissions in order to see the buttons for adding or editing reports.''' 251 === A note about SQL rewriting #rewriting 252 253 Beyond the relatively trivial replacement of dynamic variables, the SQL query is also altered in order to support two features of the reports: 254 1. [#sort-order changing the sort order] 255 2. pagination support (limitation of the number of result rows displayed on each page) 256 In order to support the first feature, the sort column is inserted in the `ORDER BY` clause in the first position or in the second position if a `__group__` column is specified (an `ORDER BY` clause is created if needed). In order to support pagination, a `LIMIT ... OFFSET ...` clause is appended. 257 The query might be too complex for the automatic rewrite to work correctly, resulting in an erroneous query. In this case you still have the possibility to control exactly how the rewrite is done by manually inserting the following tokens: 258 - `@SORT_COLUMN@`, the place where the name of the selected sort column will be inserted, 259 - `@LIMIT_OFFSET@`, the place where the pagination support clause will be added 260 Note that if you write them after an SQL comment, `--`, you'll effectively disable rewriting if this is what you want! 261 262 Let's take an example, consider the following SQL query: 263 {{{ 264 -- ## 4: Assigned, Active Tickets by Owner ## -- 265 266 -- 267 -- List assigned tickets, group by ticket owner, sorted by priority. 268 -- 269 270 SELECT p.value AS __color__, 271 owner AS __group__, 272 id AS ticket, summary, component, milestone, t.type AS type, severity, time AS created, 273 changetime AS _changetime, description AS _description, 274 reporter AS _reporter 275 FROM ticket t,enum p 276 WHERE status = 'assigned' 277 AND p.name=t.priority AND p.type='priority' 278 ORDER BY __group__, p.value, severity, time 279 }}} 280 281 The automatic rewrite will be the following (4 rows per page, page 2, sorted by `component`): 282 {{{ 283 SELECT p.value AS __color__, 284 owner AS __group__, 285 id AS ticket, summary, component, milestone, t.type AS type, severity, time AS created, 286 changetime AS _changetime, description AS _description, 287 reporter AS _reporter 288 FROM ticket t,enum p 289 WHERE status = 'assigned' 290 AND p.name=t.priority AND p.type='priority' 291 ORDER BY __group__ ASC, `component` ASC, __group__, p.value, severity, time 292 LIMIT 4 OFFSET 4 293 }}} 294 295 The equivalent SQL query with the rewrite tokens would have been: 296 {{{ 297 SELECT p.value AS __color__, 298 owner AS __group__, 299 id AS ticket, summary, component, milestone, t.type AS type, severity, time AS created, 300 changetime AS _changetime, description AS _description, 301 reporter AS _reporter 302 FROM ticket t,enum p 303 WHERE status = 'assigned' 304 AND p.name=t.priority AND p.type='priority' 305 ORDER BY __group__, @SORT_COLUMN@, p.value, severity, time 306 @LIMIT_OFFSET@ 307 }}} 308 309 If you want to always sort first by priority and only then by the user selected sort column, simply use the following `ORDER BY` clause: 310 {{{ 311 ORDER BY __group__, p.value, @SORT_COLUMN@, severity, time 312 }}} 251 313 252 314 ----
