diff options
| author | Max Kanat-Alexander <mkanat@bugzilla.org> | 2010-02-01 22:39:54 +0100 |
|---|---|---|
| committer | Max Kanat-Alexander <mkanat@bugzilla.org> | 2010-02-01 22:39:54 +0100 |
| commit | d495a972854500ce323f15d024605ec395fab155 (patch) | |
| tree | 841efc7d2bf92cfd90098b6a32b1d80e52c1ac4d /docs/xml/customization.xml | |
| parent | a456dea4447c9ddd1e79e04b2456740de19ce112 (diff) | |
| download | bugzilla-d495a972854500ce323f15d024605ec395fab155.tar.gz bugzilla-d495a972854500ce323f15d024605ec395fab155.tar.xz | |
Fix the data in the bzr repo to match the data in the CVS repo.
During the CVS imports into Bzr, there were some inconsistencies introduced
(mostly that files that were deleted in CVS weren't being deleted in Bzr).
So this checkin makes the bzr repo actually consistent with the CVS repo,
including fixing permissions of files.
Diffstat (limited to 'docs/xml/customization.xml')
| -rw-r--r-- | docs/xml/customization.xml | 820 |
1 files changed, 0 insertions, 820 deletions
diff --git a/docs/xml/customization.xml b/docs/xml/customization.xml deleted file mode 100644 index bb89cb12b..000000000 --- a/docs/xml/customization.xml +++ /dev/null @@ -1,820 +0,0 @@ -<!-- <!DOCTYPE appendix PUBLIC "-//OASIS//DTD DocBook V4.1//EN"> --> -<chapter id="customization"> - <title>Customizing Bugzilla</title> - - <section id="cust-skins"> - <title>Custom Skins</title> - - <para> - Bugzilla allows you to have multiple skins. These are custom CSS and possibly - also custom images for Bugzilla. To create a new custom skin, you have two - choices: - <itemizedlist> - <listitem> - <para> - Make a single CSS file, and put it in the - <filename>skins/contrib</filename> directory. - </para> - </listitem> - <listitem> - <para> - Make a directory that contains all the same CSS file - names as <filename>skins/standard/</filename>, and put - your directory in <filename>skins/contrib/</filename>. - </para> - </listitem> - </itemizedlist> - </para> - - <para> - After you put the file or the directory there, make sure to run checksetup.pl - so that it can reset the file permissions correctly. - </para> - <para> - After you have installed the new skin, it will show up as an option in the - user's General Preferences. If you would like to force a particular skin on all - users, just select it in the Default Preferences and then uncheck "Enabled" on - the preference. - </para> - </section> - - <section id="cust-templates"> - <title>Template Customization</title> - - <para> - Administrators can configure the look and feel of Bugzilla without - having to edit Perl files or face the nightmare of massive merge - conflicts when they upgrade to a newer version in the future. - </para> - - <para> - Templatization also makes localized versions of Bugzilla possible, - for the first time. It's possible to have Bugzilla's UI language - determined by the user's browser. More information is available in - <xref linkend="template-http-accept"/>. - </para> - - <section id="template-directory"> - <title>Template Directory Structure</title> - <para> - The template directory structure starts with top level directory - named <filename>template</filename>, which contains a directory - for each installed localization. The next level defines the - language used in the templates. Bugzilla comes with English - templates, so the directory name is <filename>en</filename>, - and we will discuss <filename>template/en</filename> throughout - the documentation. Below <filename>template/en</filename> is the - <filename>default</filename> directory, which contains all the - standard templates shipped with Bugzilla. - </para> - - <warning> - <para> - A directory <filename>data/templates</filename> also exists; - this is where Template Toolkit puts the compiled versions of - the templates from either the default or custom directories. - <emphasis>Do not</emphasis> directly edit the files in this - directory, or all your changes will be lost the next time - Template Toolkit recompiles the templates. - </para> - </warning> - </section> - - <section id="template-method"> - <title>Choosing a Customization Method</title> - <para> - If you want to edit Bugzilla's templates, the first decision - you must make is how you want to go about doing so. There are two - choices, and which you use depends mainly on the scope of your - modifications, and the method you plan to use to upgrade Bugzilla. - </para> - - <para> - The first method of making customizations is to directly edit the - templates found in <filename>template/en/default</filename>. - This is probably the best way to go about it if you are going to - be upgrading Bugzilla through CVS, because if you then execute - a <command>cvs update</command>, any changes you have made will - be merged automagically with the updated versions. - </para> - - <note> - <para> - If you use this method, and CVS conflicts occur during an - update, the conflicted templates (and possibly other parts - of your installation) will not work until they are resolved. - </para> - </note> - - <para> - The second method is to copy the templates to be modified - into a mirrored directory structure under - <filename>template/en/custom</filename>. Templates in this - directory structure automatically override any identically-named - and identically-located templates in the - <filename>default</filename> directory. - </para> - - <note> - <para> - The <filename>custom</filename> directory does not exist - at first and must be created if you want to use it. - </para> - </note> - - <para> - The second method of customization should be used if you - use the overwriting method of upgrade, because otherwise - your changes will be lost. This method may also be better if - you are using the CVS method of upgrading and are going to make major - changes, because it is guaranteed that the contents of this directory - will not be touched during an upgrade, and you can then decide whether - to continue using your own templates, or make the effort to merge your - changes into the new versions by hand. - </para> - - <para> - Using this method, your installation may break if incompatible - changes are made to the template interface. Such changes should - be documented in the release notes, provided you are using a - stable release of Bugzilla. If you use using unstable code, you will - need to deal with this one yourself, although if possible the changes - will be mentioned before they occur in the deprecations section of the - previous stable release's release notes. - </para> - - <note> - <para> - Regardless of which method you choose, it is recommended that - you run <command>./checksetup.pl</command> after creating or - editing any templates in the <filename>template/en/default</filename> - directory, and after editing any templates in the - <filename>custom</filename> directory. - </para> - </note> - - <warning> - <para> - It is <emphasis>required</emphasis> that you run - <command>./checksetup.pl</command> after creating a new - template in the <filename>custom</filename> directory. Failure - to do so will raise an incomprehensible error message. - </para> - </warning> - </section> - - <section id="template-edit"> - <title>How To Edit Templates</title> - - <note> - <para> - If you are making template changes that you intend on submitting back - for inclusion in standard Bugzilla, you should read the relevant - sections of the - <ulink url="http://www.bugzilla.org/docs/developer.html">Developers' - Guide</ulink>. - </para> - </note> - - <para> - The syntax of the Template Toolkit language is beyond the scope of - this guide. It's reasonably easy to pick up by looking at the current - templates; or, you can read the manual, available on the - <ulink url="http://www.template-toolkit.org">Template Toolkit home - page</ulink>. - </para> - - <para> - One thing you should take particular care about is the need - to properly HTML filter data that has been passed into the template. - This means that if the data can possibly contain special HTML characters - such as <, and the data was not intended to be HTML, they need to be - converted to entity form, i.e. &lt;. You use the 'html' filter in the - Template Toolkit to do this. If you forget, you may open up - your installation to cross-site scripting attacks. - </para> - - <para> - Also note that Bugzilla adds a few filters of its own, that are not - in standard Template Toolkit. In particular, the 'url_quote' filter - can convert characters that are illegal or have special meaning in URLs, - such as &, to the encoded form, i.e. %26. This actually encodes most - characters (but not the common ones such as letters and numbers and so - on), including the HTML-special characters, so there's never a need to - HTML filter afterwards. - </para> - - <para> - Editing templates is a good way of doing a <quote>poor man's custom - fields</quote>. - For example, if you don't use the Status Whiteboard, but want to have - a free-form text entry box for <quote>Build Identifier</quote>, - then you can just - edit the templates to change the field labels. It's still be called - status_whiteboard internally, but your users don't need to know that. - </para> - - </section> - - - <section id="template-formats"> - <title>Template Formats and Types</title> - - <para> - Some CGI's have the ability to use more than one template. For example, - <filename>buglist.cgi</filename> can output itself as RDF, or as two - formats of HTML (complex and simple). The mechanism that provides this - feature is extensible. - </para> - - <para> - Bugzilla can support different types of output, which again can have - multiple formats. In order to request a certain type, you can append - the &ctype=<contenttype> (such as rdf or html) to the - <filename><cginame>.cgi</filename> URL. If you would like to - retrieve a certain format, you can use the &format=<format> - (such as simple or complex) in the URL. - </para> - - <para> - To see if a CGI supports multiple output formats and types, grep the - CGI for <quote>get_format</quote>. If it's not present, adding - multiple format/type support isn't too hard - see how it's done in - other CGIs, e.g. config.cgi. - </para> - - <para> - To make a new format template for a CGI which supports this, - open a current template for - that CGI and take note of the INTERFACE comment (if present.) This - comment defines what variables are passed into this template. If - there isn't one, I'm afraid you'll have to read the template and - the code to find out what information you get. - </para> - - <para> - Write your template in whatever markup or text style is appropriate. - </para> - - <para> - You now need to decide what content type you want your template - served as. The content types are defined in the - <filename>Bugzilla/Constants.pm</filename> file in the - <filename>contenttypes</filename> - constant. If your content type is not there, add it. Remember - the three- or four-letter tag assigned to your content type. - This tag will be part of the template filename. - </para> - - <note> - <para> - After adding or changing a content type, it's suitable to edit - <filename>Bugzilla/Constants.pm</filename> in order to reflect - the changes. Also, the file should be kept up to date after an - upgrade if content types have been customized in the past. - </para> - </note> - - <para> - Save the template as <filename><stubname>-<formatname>.<contenttypetag>.tmpl</filename>. - Try out the template by calling the CGI as - <filename><cginame>.cgi?format=<formatname>&ctype=<type></filename> . - </para> - </section> - - - <section id="template-specific"> - <title>Particular Templates</title> - - <para> - There are a few templates you may be particularly interested in - customizing for your installation. - </para> - - <para> - <command>index.html.tmpl</command>: - This is the Bugzilla front page. - </para> - - <para> - <command>global/header.html.tmpl</command>: - This defines the header that goes on all Bugzilla pages. - The header includes the banner, which is what appears to users - and is probably what you want to edit instead. However the - header also includes the HTML HEAD section, so you could for - example add a stylesheet or META tag by editing the header. - </para> - - <para> - <command>global/banner.html.tmpl</command>: - This contains the <quote>banner</quote>, the part of the header - that appears - at the top of all Bugzilla pages. The default banner is reasonably - barren, so you'll probably want to customize this to give your - installation a distinctive look and feel. It is recommended you - preserve the Bugzilla version number in some form so the version - you are running can be determined, and users know what docs to read. - </para> - - <para> - <command>global/footer.html.tmpl</command>: - This defines the footer that goes on all Bugzilla pages. Editing - this is another way to quickly get a distinctive look and feel for - your Bugzilla installation. - </para> - - <para> - <command>global/variables.none.tmpl</command>: - This defines a list of terms that may be changed in order to - <quote>brand</quote> the Bugzilla instance In this way, terms - like <quote>bugs</quote> can be replaced with <quote>issues</quote> - across the whole Bugzilla installation. The name - <quote>Bugzilla</quote> and other words can be customized as well. - </para> - - <para> - <command>list/table.html.tmpl</command>: - This template controls the appearance of the bug lists created - by Bugzilla. Editing this template allows per-column control of - the width and title of a column, the maximum display length of - each entry, and the wrap behaviour of long entries. - For long bug lists, Bugzilla inserts a 'break' every 100 bugs by - default; this behaviour is also controlled by this template, and - that value can be modified here. - </para> - - <para> - <command>bug/create/user-message.html.tmpl</command>: - This is a message that appears near the top of the bug reporting page. - By modifying this, you can tell your users how they should report - bugs. - </para> - - <para> - <command>bug/process/midair.html.tmpl</command>: - This is the page used if two people submit simultaneous changes to the - same bug. The second person to submit their changes will get this page - to tell them what the first person did, and ask if they wish to - overwrite those changes or go back and revisit the bug. The default - title and header on this page read "Mid-air collision detected!" If - you work in the aviation industry, or other environment where this - might be found offensive (yes, we have true stories of this happening) - you'll want to change this to something more appropriate for your - environment. - </para> - - <para> - <command>bug/create/create.html.tmpl</command> and - <command>bug/create/comment.txt.tmpl</command>: - You may not wish to go to the effort of creating custom fields in - Bugzilla, yet you want to make sure that each bug report contains - a number of pieces of important information for which there is not - a special field. The bug entry system has been designed in an - extensible fashion to enable you to add arbitrary HTML widgets, - such as drop-down lists or textboxes, to the bug entry page - and have their values appear formatted in the initial comment. - A hidden field that indicates the format should be added inside - the form in order to make the template functional. Its value should - be the suffix of the template filename. For example, if the file - is called <filename>create-cust.html.tmpl</filename>, then - <programlisting><input type="hidden" name="format" value="cust"></programlisting> - should be used inside the form. - </para> - - <para> - An example of this is the mozilla.org - <ulink url="http://landfill.bugzilla.org/bugzilla-tip/enter_bug.cgi?product=WorldControl&format=guided">guided - bug submission form</ulink>. The code for this comes with the Bugzilla - distribution as an example for you to copy. It can be found in the - files - <filename>create-guided.html.tmpl</filename> and - <filename>comment-guided.html.tmpl</filename>. - </para> - - <para> - So to use this feature, create a custom template for - <filename>enter_bug.cgi</filename>. The default template, on which you - could base it, is - <filename>custom/bug/create/create.html.tmpl</filename>. - Call it <filename>create-<formatname>.html.tmpl</filename>, and - in it, add widgets for each piece of information you'd like - collected - such as a build number, or set of steps to reproduce. - </para> - - <para> - Then, create a template like - <filename>custom/bug/create/comment.txt.tmpl</filename>, and call it - <filename>comment-<formatname>.txt.tmpl</filename>. This - template should reference the form fields you have created using - the syntax <filename>[% form.<fieldname> %]</filename>. When a - bug report is - submitted, the initial comment attached to the bug report will be - formatted according to the layout of this template. - </para> - - <para> - For example, if your custom enter_bug template had a field - <programlisting><input type="text" name="buildid" size="30"></programlisting> - and then your comment.txt.tmpl had - <programlisting>BuildID: [% form.buildid %]</programlisting> - then something like - <programlisting>BuildID: 20020303</programlisting> - would appear in the initial comment. - </para> - </section> - - - <section id="template-http-accept"> - <title>Configuring Bugzilla to Detect the User's Language</title> - - <para>Bugzilla honours the user's Accept: HTTP header. You can install - templates in other languages, and Bugzilla will pick the most appropriate - according to a priority order defined by you. Many - language templates can be obtained from <ulink - url="http://www.bugzilla.org/download.html#localizations"/>. Instructions - for submitting new languages are also available from that location. - </para> - </section> - - </section> - - <section id="cust-hooks"> - <title>The Bugzilla Extension Mechanism</title> - - <warning> - <para> - Custom extensions require Template Toolkit version 2.12 or - above, or the application of a patch. See <ulink - url="http://bugzilla.mozilla.org/show_bug.cgi?id=239112">bug - 239112</ulink> for details. - </para> - </warning> - - <para> - Extensions are a way for extensions to Bugzilla to insert code - into the standard Bugzilla templates and source files - without modifying these files themselves. The extension mechanism - defines a consistent API for extending the standard templates and source files - in a way that cleanly separates standard code from extension code. - Hooks reduce merge conflicts and make it easier to write extensions that work - across multiple versions of Bugzilla, making upgrading a Bugzilla installation - with installed extensions easier. Furthermore, they make it easy to install - and remove extensions as each extension is nothing more than a - simple directory structure. - </para> - - <para> - There are two main types of hooks: code hooks and template hooks. Code - hooks allow extensions to invoke code at specific points in various - source files, while template hooks allow extensions to add elements to - the Bugzilla user interface. - </para> - - <para> - A hook is just a named place in a standard source or template file - where extension source code or template files for that hook get processed. - Each extension has a corresponding directory in the Bugzilla directory - tree (<filename>BUGZILLA_ROOT/extensions/extension_name</filename>). Hooking - an extension source file or template to a hook is as simple as putting - the extension file into extension's template or code directory. - When Bugzilla processes the source file or template and reaches the hook, - it will process all extension files in the hook's directory. - The hooks themselves can be added into any source file or standard template - upon request by extension authors. - </para> - - <para> - To use hooks to extend Bugzilla, first make sure there is - a hook at the appropriate place within the source file or template you - want to extend. The exact appearance of a hook depends on if the hook - is a code hook or a template hook. - </para> - - <para> - Code hooks appear in Bugzilla source files as a single method call - in the format <literal role="code">Bugzilla::Hook->process("<varname>name</varname>");</literal>. - For instance, <filename>enter_bug.cgi</filename> may invoke the hook - "<varname>enter_bug-entrydefaultvars</varname>". Thus, a source file at - <filename>BUGZILLA_ROOT/extensions/EXTENSION_NAME/code/enter_bug-entrydefaultvars.pl</filename> - will be automatically invoked when the code hook is reached. - </para> - - <para> - Template hooks appear in the standard Bugzilla templates as a - single directive in the format - <literal role="code">[% Hook.process("<varname>name</varname>") %]</literal>, - where <varname>name</varname> is the unique name of the hook. - </para> - - <para> - If you aren't sure what you want to extend or just want to browse the - available hooks, either use your favorite multi-file search - tool (e.g. <command>grep</command>) to search the standard templates - for occurrences of <methodname>Hook.process</methodname> or the source - files for occurrences of <methodname>Bugzilla::Hook::process</methodname>. - </para> - - <para> - If there is no hook at the appropriate place within the Bugzilla - source file or template you want to extend, - <ulink url="http://bugzilla.mozilla.org/enter_bug.cgi?product=Bugzilla&component=User%20Interface">file - a bug requesting one</ulink>, specifying: - </para> - - <simplelist> - <member>the source or template file for which you are - requesting a hook;</member> - <member> - where in the file you would like the hook to be placed - (line number/position for latest version of the file in CVS - or description of location); - </member> - <member>the purpose of the hook;</member> - <member>a link to information about your extension, if any.</member> - </simplelist> - - <para> - The Bugzilla reviewers will promptly review each hook request, - name the hook, add it to the template or source file, and check - the new version of the template into CVS. - </para> - - <para> - You may optionally attach a patch to the bug which implements the hook - and check it in yourself after receiving approval from a Bugzilla - reviewer. The developers may suggest changes to the location of the - hook based on their analysis of your needs or so the hook can satisfy - the needs of multiple extensions, but the process of getting hooks - approved and checked in is not as stringent as the process for general - changes to Bugzilla, and any extension, whether released or still in - development, can have hooks added to meet their needs. - </para> - - <para> - After making sure the hook you need exists (or getting it added if not), - add your extension to the directory within the Bugzilla - extensions tree corresponding to the hook. - </para> - - <para> - That's it! Now, when the source file or template containing the hook - is processed, your extension file will be processed at the point - where the hook appears. - </para> - - <para> - For example, let's say you have an extension named Projman that adds - project management capabilities to Bugzilla. Projman has an - administration interface <filename>edit-projects.cgi</filename>, - and you want to add a link to it into the navigation bar at the bottom - of every Bugzilla page for those users who are authorized - to administer projects. - </para> - - <para> - The navigation bar is generated by the template file - <filename>useful-links.html.tmpl</filename>, which is located in - the <filename>global/</filename> subdirectory on the standard Bugzilla - template path - <filename>BUGZILLA_ROOT/template/en/default/</filename>. - Looking in <filename>useful-links.html.tmpl</filename>, you find - the following hook at the end of the list of standard Bugzilla - administration links: - </para> - - <programlisting><![CDATA[... - [% ', <a href="editkeywords.cgi">keywords</a>' - IF user.groups.editkeywords %] - [% Hook.process("edit") %] -...]]></programlisting> - - <para> - The corresponding extension file for this hook is - <filename>BUGZILLA_ROOT/extensions/projman/template/en/hook/global/useful-links-edit.html.tmpl</filename>. - You then create that template file and add the following constant: - </para> - - <programlisting><![CDATA[...[% ', <a href="edit-projects.cgi">projects</a>' IF user.groups.projman_admins %]]]></programlisting> - - <para> - Voila! The link now appears after the other administration links in the - navigation bar for users in the <literal>projman_admins</literal> group. - </para> - - <para> - Now, let us say your extension adds a custom "project_manager" field - to enter_bug.cgi. You want to modify the CGI script to set the default - project manager to be productname@company.com. Looking at - <filename>enter_bug.cgi</filename>, you see the enter_bug-entrydefaultvars - hook near the bottom of the file before the default form values are set. - The corresponding extension source file for this hook is located at - <filename>BUGZILLA_ROOT/extensions/projman/code/enter_bug-entrydefaultvars.pl</filename>. - You then create that file and add the following: - </para> - - <programlisting>$default{'project_manager'} = $product.'@company.com';</programlisting> - - <para> - This code will be invoked whenever enter_bug.cgi is executed. - Assuming that the rest of the customization was completed (e.g. the - custom field was added to the enter_bug template and the required hooks - were used in process_bug.cgi), the new field will now have this - default value. - </para> - - <para> - Notes: - </para> - - <itemizedlist> - <listitem> - <para> - If your extension includes entirely new templates in addition to - extensions of standard templates, it should store those new - templates in its - <filename>BUGZILLA_ROOT/extensions/template/en/</filename> - directory. Extension template directories, like the - <filename>default/</filename> and <filename>custom/</filename> - directories, are part of the template search path, so putting templates - there enables them to be found by the template processor. - </para> - - <para> - The template processor looks for templates first in the - <filename>custom/</filename> directory (i.e. templates added by the - specific installation), then in the <filename>extensions/</filename> - directory (i.e. templates added by extensions), and finally in the - <filename>default/</filename> directory (i.e. the standard Bugzilla - templates). Thus, installation-specific templates override both - default and extension templates. - </para> - </listitem> - - <listitem> - <para> - If you are looking to customize Bugzilla, you can also take advantage - of template hooks. To do so, create a directory in - <filename>BUGZILLA_ROOT/template/en/custom/hook/</filename> - that corresponds to the hook you wish to use, then place your - customization templates into those directories. For example, - if you wanted to use the hook "end" in - <filename>global/useful-links.html.tmpl</filename>, you would - create the directory <filename>BUGZILLA_ROOT/template/en/custom/hook/ - global/useful-links.html.tmpl/end/</filename> and add your customization - template to this directory. - </para> - - <para> - Obviously this method of customizing Bugzilla only lets you add code - to the standard source files and templates; you cannot change the - existing code. Nevertheless, for those customizations that only add - code, this method can reduce conflicts when merging changes, - making upgrading your customized Bugzilla installation easier. - </para> - </listitem> - </itemizedlist> - </section> - - <section id="cust-change-permissions"> - <title>Customizing Who Can Change What</title> - - <warning> - <para> - This feature should be considered experimental; the Bugzilla code you - will be changing is not stable, and could change or move between - versions. Be aware that if you make modifications as outlined here, - you may have - to re-make them or port them if Bugzilla changes internally between - versions, and you upgrade. - </para> - </warning> - - <para> - Companies often have rules about which employees, or classes of employees, - are allowed to change certain things in the bug system. For example, - only the bug's designated QA Contact may be allowed to VERIFY the bug. - Bugzilla has been - designed to make it easy for you to write your own custom rules to define - who is allowed to make what sorts of value transition. - </para> - - <para> - By default, assignees, QA owners and users - with <emphasis>editbugs</emphasis> privileges can edit all fields of bugs, - except group restrictions (unless they are members of the groups they - are trying to change). Bug reporters also have the ability to edit some - fields, but in a more restrictive manner. Other users, without - <emphasis>editbugs</emphasis> privileges, can not edit - bugs, except to comment and add themselves to the CC list. - </para> - - <para> - For maximum flexibility, customizing this means editing Bugzilla's Perl - code. This gives the administrator complete control over exactly who is - allowed to do what. The relevant method is called - <filename>check_can_change_field()</filename>, - and is found in <filename>Bug.pm</filename> in your - Bugzilla/ directory. If you open that file and search for - <quote>sub check_can_change_field</quote>, you'll find it. - </para> - - <para> - This function has been carefully commented to allow you to see exactly - how it works, and give you an idea of how to make changes to it. - Certain marked sections should not be changed - these are - the <quote>plumbing</quote> which makes the rest of the function work. - In between those sections, you'll find snippets of code like: - <programlisting> # Allow the assignee to change anything. - if ($ownerid eq $whoid) { - return 1; - }</programlisting> - It's fairly obvious what this piece of code does. - </para> - - <para> - So, how does one go about changing this function? Well, simple changes - can be made just by removing pieces - for example, if you wanted to - prevent any user adding a comment to a bug, just remove the lines marked - <quote>Allow anyone to change comments.</quote> If you don't want the - Reporter to have any special rights on bugs they have filed, just - remove the entire section that deals with the Reporter. - </para> - - <para> - More complex customizations are not much harder. Basically, you add - a check in the right place in the function, i.e. after all the variables - you are using have been set up. So, don't look at $ownerid before - $ownerid has been obtained from the database. You can either add a - positive check, which returns 1 (allow) if certain conditions are true, - or a negative check, which returns 0 (deny.) E.g.: - <programlisting> if ($field eq "qacontact") { - if (Bugzilla->user->groups("quality_assurance")) { - return 1; - } - else { - return 0; - } - }</programlisting> - This says that only users in the group "quality_assurance" can change - the QA Contact field of a bug. - </para> - - <para> - Getting more weird: - <programlisting><![CDATA[ if (($field eq "priority") && - (Bugzilla->user->email =~ /.*\@example\.com$/)) - { - if ($oldvalue eq "P1") { - return 1; - } - else { - return 0; - } - }]]></programlisting> - This says that if the user is trying to change the priority field, - and their email address is @example.com, they can only do so if the - old value of the field was "P1". Not very useful, but illustrative. - </para> - - <warning> - <para> - If you are modifying <filename>process_bug.cgi</filename> in any - way, do not change the code that is bounded by DO_NOT_CHANGE blocks. - Doing so could compromise security, or cause your installation to - stop working entirely. - </para> - </warning> - - <para> - For a list of possible field names, look at the bugs table in the - database. If you need help writing custom rules for your organization, - ask in the newsgroup. - </para> - </section> - - <!-- Integrating Bugzilla with Third-Party Tools --> - &integration; - -</chapter> - -<!-- Keep this comment at the end of the file -Local variables: -mode: sgml -sgml-always-quote-attributes:t -sgml-auto-insert-required-elements:t -sgml-balanced-tag-edit:t -sgml-exposed-tags:nil -sgml-general-insert-case:lower -sgml-indent-data:t -sgml-indent-step:2 -sgml-local-catalogs:nil -sgml-local-ecat-files:nil -sgml-minimize-attributes:nil -sgml-namecase-general:t -sgml-omittag:t -sgml-parent-document:("Bugzilla-Guide.xml" "book" "chapter") -sgml-shorttag:t -sgml-tag-region-if-active:t -End: ---> - |