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Mozilla/mozilla/webtools/bugzilla/docs/html/cust-templates.html
gerv%gerv.net 37c7a8a963 More serious documentation whackage. This is now ready for review.
git-svn-id: svn://10.0.0.236/branches/BUGZILLA-2_16-BRANCH@122165 18797224-902f-48f8-a5cc-f745e15eee43
2002-05-25 15:36:59 +00:00

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<HTML
><HEAD
><TITLE
>Template Customisation</TITLE
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><DIV
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><H1
CLASS="section"
><A
NAME="cust-templates">5.7. Template Customisation</H1
><P
>&#13; One of the large changes for 2.16 was the templatisation of the
entire user-facing UI, using the
<A
HREF="http://www.template-toolkit.org"
TARGET="_top"
>Template Toolkit</A
>.
Administrators can now 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.
</P
><P
>&#13; Templatisation also makes localised versions of Bugzilla possible,
for the first time. In the future, a Bugzilla installation may
have templates installed for multiple localisations, and select
which ones to use based on the user's browser language setting.
</P
><DIV
CLASS="section"
><H2
CLASS="section"
><A
NAME="AEN1524">5.7.1. What to Edit</H2
><P
>&#13; There are several ways to take advantage of Bugzilla's templates,
and which you use depends on what you want to do. The Bugzilla
template directory structure is that there's a top level directory,
<TT
CLASS="filename"
>template</TT
>, which contains a directory for
each installed localisation. The default English templates are
therefore in <TT
CLASS="filename"
>en</TT
>. Underneath that, there
are two directories - <TT
CLASS="filename"
>default</TT
> and
<TT
CLASS="filename"
>custom</TT
>. The <TT
CLASS="filename"
>default</TT
>
directory contains all the templates shipped with Bugzilla.
</P
><P
>&#13; One method of making customisations is to directly edit the templates
in <TT
CLASS="filename"
>template/en/default</TT
>. This is probably the
best method for small changes, because if you then execute a
<B
CLASS="command"
>cvs update</B
>, any template fixes will get
automagically merged into your modified versions.
</P
><P
>&#13; The other method is to copy the templates into a mirrored directory
structure under <TT
CLASS="filename"
>template/en/custom</TT
>.
This method is better if
you 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.
</P
><P
>&#13; 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
<A
HREF="http://www.template-toolkit.org"
TARGET="_top"
>Template Toolkit home
page</A
>.
</P
><DIV
CLASS="note"
><P
></P
><TABLE
CLASS="note"
WIDTH="100%"
BORDER="0"
><TR
><TD
WIDTH="25"
ALIGN="CENTER"
VALIGN="TOP"
><IMG
SRC="../images/note.gif"
HSPACE="5"
ALT="Note"></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><P
>&#13; Don't directly edit the compiled templates in
<TT
CLASS="filename"
>data/template/*</TT
> - your
changes will be lost when Template Toolkit recompiles them.
</P
></TD
></TR
></TABLE
></DIV
></DIV
><DIV
CLASS="section"
><H2
CLASS="section"
><A
NAME="AEN1542">5.7.2. Particular Templates</H2
><P
>&#13; There are a few templates you may be particularly interested in
customising for your installation.
</P
><P
>&#13; <B
CLASS="command"
>global/header.html.tmpl</B
> and
<B
CLASS="command"
>global/footer.html.tmpl</B
>:
These define the header and footer that go on all Bugzilla pages.
Editing these is a way to quickly get a distinctive look and
feel for your Bugzilla installation.
</P
><P
>&#13; <B
CLASS="command"
>bug/create/create.html.tmpl</B
> and
<B
CLASS="command"
>bug/create/comment.txt.tmpl</B
>:
You may wish to get bug submitters to give certain bits of structured
information, each in a separate input widget, for which there is not a
field in the database. The bug entry system has been designed in an
extensible fashion to enable you to define arbitrary fields and widgets,
and have their values appear formatted in the initial
Description (rather than in database fields.)
</P
><P
>&#13; To make this work, create a custom template for
<TT
CLASS="filename"
>enter_bug.cgi</TT
> (the default template, on which you
could base it, is <TT
CLASS="filename"
>create.html.tmpl</TT
>),
and either call it <TT
CLASS="filename"
>create.html.tmpl</TT
> or
<TT
CLASS="filename"
>create-&#60;formatname&#62;.html.tmpl</TT
>.
Put it in the <TT
CLASS="filename"
>custom/bug/create</TT
>
directory. In it, add widgets for each piece of information you'd like
collected - such as a build number, or set of steps to reproduce.
</P
><P
>&#13; Then, create a template like
<TT
CLASS="filename"
>custom/bug/create/comment.txt.tmpl</TT
>, which
references the form fields you have created. When a bug report is
submitted, the initial comment attached to the bug report will be
formatted according to the layout of this template.
</P
><P
>&#13; For example, if your enter_bug template had a field
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="programlisting"
>&#13; &#60;input type="text" name="buildid" size="30"&#62;
</PRE
></FONT
></TD
></TR
></TABLE
>
and then your comment.txt.tmpl had
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="programlisting"
>&#13; BuildID: [% form.buildid %]
</PRE
></FONT
></TD
></TR
></TABLE
>
then
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="programlisting"
>&#13; BuildID: 20020303
</PRE
></FONT
></TD
></TR
></TABLE
>
would appear in the initial checkin comment.
</P
></DIV
><DIV
CLASS="section"
><H2
CLASS="section"
><A
NAME="AEN1563">5.7.3. Template Formats</H2
><P
>&#13; Some CGIs have the ability to use more than one template. For
example, buglist.cgi can output bug lists as RDF or two
different forms of HTML (complex and simple). (Try this out
by appending <TT
CLASS="filename"
>&#38;format=simple</TT
> to a buglist.cgi
URL on your Bugzilla installation.) This
mechanism, called template 'formats', is extensible.
</P
><P
>&#13; To see if a CGI supports multiple output formats, grep the
CGI for "ValidateOutputFormat". If it's not present, adding
multiple format support isn't too hard - see how it's done in
other CGIs.
</P
><P
>&#13; 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.
</P
><P
>&#13; Write your template in whatever markup or text style is appropriate.
</P
><P
>&#13; You now need to decide what content type you want your template
served as. Open up the localconfig file and find the $contenttypes
variable. If your content type is not there, add it. Remember
the three- or four-letter tag assigned to you content type.
This tag will be part of the template filename.
</P
><P
>&#13; Save the template as <TT
CLASS="filename"
>&#60;stubname&#62;-&#60;formatname&#62;.&#60;contenttypetag&#62;.tmpl</TT
>.
Try out the template by calling the CGI as
<TT
CLASS="filename"
>&#60;cginame&#62;.cgi?format=&#60;formatname&#62;</TT
> .
</P
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