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It's very nice.</span> </a> <a href="#" class="menu hide" onclick="widescreen_on(); return false" title="Hide Menu"> <span class="about">Click to hide the menu and go all widescreen!</span> </a> <div class="pager"> <a href="../../modules/Template/VMethods.html" title="Template::VMethods" class="go back">Back<span class="about"><h4>Template::VMethods</h4>Virtual methods for variables</span></a> <a href="../../modules/Template/index.html" title="Template::* Modules" class="go up">Up<span class="about"><h4>Template::* Modules</h4></span></a> <span class="go next">Next<span class="about">I'm sorry Dave, I can't do that.</span></span> </div> </div> <h1 class="headline">Template::View</h1> <h2 class="subhead">customised view of a template processing context</h1> </div> <div id="page"> <div id="sidebar"> <a href="../../index.html" id="logo"></a> <div id="menu"> <ul class="menu"> <li class="l0 first"><a href="../../manual/index.html">Manual</a></li> <li class="l0"><a href="../../modules/index.html" class="warm">Modules</a></li> <li class="l1"><a href="../../modules/Template.html">Template.pm</a></li> <li class="l1"><a href="../../modules/Template/index.html" class="warm">Template::*</a></li> <li class="l2"><a href="../../modules/Template/Base.html">Base.pm</a></li> <li class="l2"><a href="../../modules/Template/Config.html">Config.pm</a></li> <li class="l2"><a href="../../modules/Template/Constants.html">Constants.pm</a></li> <li class="l2"><a href="../../modules/Template/Context.html">Context.pm</a></li> <li class="l2"><a href="../../modules/Template/Directive.html">Directive.pm</a></li> <li class="l2"><a href="../../modules/Template/Document.html">Document.pm</a></li> <li class="l2"><a href="../../modules/Template/Exception.html">Exception.pm</a></li> <li class="l2"><a href="../../modules/Template/Filters.html">Filters.pm</a></li> <li class="l2"><a href="../../modules/Template/Grammar.html">Grammar.pm</a></li> <li class="l2"><a href="../../modules/Template/Iterator.html">Iterator.pm</a></li> <li class="l2"><a href="../../modules/Template/Namespace/index.html">Namespace::*</a></li> <li class="l2"><a href="../../modules/Template/Parser.html">Parser.pm</a></li> <li class="l2"><a href="../../modules/Template/Plugin.html">Plugin.pm</a></li> <li class="l2"><a href="../../modules/Template/Plugin/index.html">Plugin::*</a></li> <li class="l2"><a href="../../modules/Template/Plugins.html">Plugins.pm</a></li> <li class="l2"><a href="../../modules/Template/Provider.html">Provider.pm</a></li> <li class="l2"><a href="../../modules/Template/Service.html">Service.pm</a></li> <li class="l2"><a href="../../modules/Template/Stash.html">Stash.pm</a></li> <li class="l2"><a href="../../modules/Template/Stash/index.html">Stash::*</a></li> <li class="l2"><a href="../../modules/Template/Test.html">Test.pm</a></li> <li class="l2"><a href="../../modules/Template/VMethods.html">VMethods.pm</a></li> <li class="l2"><a href="../../modules/Template/View.html" class="warm">View.pm</a></li> <li class="l0"><a href="../../tools/index.html">Tools</a></li> <li class="l0"><a href="../../tutorial/index.html">Tutorial</a></li> <li class="l0 last"><a href="../../faq/index.html">FAQ</a></li> </ul> <div class="foot"></div> </div> </div> <div id="content"> <div class="section"> <div class="head"> <h1 id="contents" onclick="switch_section(this)" title="Click title to show/hide section content.">Contents</h1> <a href="#body" class="top" title="Back up to the top of the page" >Top</a> </div> <div class="body"> <ul class="toc"> <li class=""><a href="#SYNOPSIS">SYNOPSIS</a></li> <li class=""><a href="#DESCRIPTION">DESCRIPTION</a></li> <li class=""><a href="#METHODS">METHODS</a></li> <li class="sub"><a href="#method_new">new($context, \%config)</a></li> <li class="sub"><a href="#method_print">print( $obj1, $obj2, ... \%config)</a></li> <li class="sub"><a href="#method_view">view( $template, \%vars, \%config );</a></li> <li class=""><a href="#AUTHOR">AUTHOR</a></li> <li class=""><a href="#COPYRIGHT">COPYRIGHT</a></li> <li class=""><a href="#SEE_ALSO">SEE ALSO</a></li> </ul> </div> </div> <div class="pod"> <div class="section"> <div class="head"> <h1 id="SYNOPSIS" onclick="switch_section(this)" title="Click title to show/hide section content.">SYNOPSIS</h1> <a href="#body" class="top" title="Back up to the top of the page" >Top</a> </div> <div class="body"> <pre># define a view <span class="tt">[% VIEW view # some standard args prefix =&gt; 'my_', suffix =&gt; '.tt2', notfound =&gt; 'no_such_file' ... # any other data title =&gt; 'My View title' other_item =&gt; 'Joe Random Data' ... %]</span> # add new data definitions, via 'my' self reference <span class="tt">[% my.author = "$abw.name &lt;$abw.email&gt;" %]</span> <span class="tt">[% my.copy = "&amp;copy; Copyright 2000 $my.author" %]</span> # define a local block <span class="tt">[% BLOCK header %]</span> This is the header block, title: <span class="tt">[% title or my.title %]</span> <span class="tt">[% END %]</span> <span class="tt">[% END %]</span> # access data items for view <span class="tt">[% view.title %]</span> <span class="tt">[% view.other_item %]</span> # access blocks directly ('include_naked' option, set by default) <span class="tt">[% view.header %]</span> <span class="tt">[% view.header(title =&gt; 'New Title') %]</span> # non-local templates have prefix/suffix attached <span class="tt">[% view.footer %]</span> # =&gt; <span class="tt">[% INCLUDE my_footer.tt2 %]</span> # more verbose form of block access <span class="tt">[% view.include( 'header', title =&gt; 'The Header Title' ) %]</span> <span class="tt">[% view.include_header( title =&gt; 'The Header Title' ) %]</span> # very short form of above ('include_naked' option, set by default) <span class="tt">[% view.header( title =&gt; 'The Header Title' ) %]</span> # non-local templates have prefix/suffix attached <span class="tt">[% view.footer %]</span> # =&gt; <span class="tt">[% INCLUDE my_footer.tt2 %]</span> # fallback on the 'notfound' template ('my_no_such_file.tt2') # if template not found <span class="tt">[% view.include('missing') %]</span> <span class="tt">[% view.include_missing %]</span> <span class="tt">[% view.missing %]</span> # print() includes a template relevant to argument type <span class="tt">[% view.print("some text") %]</span> # type=TEXT, template='text' <span class="tt">[% BLOCK my_text.tt2 %]</span> # 'text' with prefix/suffix Text: <span class="tt">[% item %]</span> <span class="tt">[% END %]</span> # now print() a hash ref, mapped to 'hash' template <span class="tt">[% view.print(some_hash_ref) %]</span> # type=HASH, template='hash' <span class="tt">[% BLOCK my_hash.tt2 %]</span> # 'hash' with prefix/suffix hash keys: <span class="tt">[% item.keys.sort.join(', ') [% END %]</span> # now print() a list ref, mapped to 'list' template <span class="tt">[% view.print(my_list_ref) %]</span> # type=ARRAY, template='list' <span class="tt">[% BLOCK my_list.tt2 %]</span> # 'list' with prefix/suffix list: <span class="tt">[% item.join(', ') %]</span> <span class="tt">[% END %]</span> # print() maps 'My::Object' to 'My_Object' <span class="tt">[% view.print(myobj) %]</span> <span class="tt">[% BLOCK my_My_Object.tt2 %]</span> <span class="tt">[% item.this %]</span>, <span class="tt">[% item.that %]</span> <span class="tt">[% END %]</span> # update mapping table <span class="tt">[% view.map.ARRAY = 'my_list_template' %]</span> <span class="tt">[% view.map.TEXT = 'my_text_block' %]</span> # change prefix, suffix, item name, etc. <span class="tt">[% view.prefix = 'your_' %]</span> <span class="tt">[% view.default = 'anyobj' %]</span> ...</pre> </div> </div> <div class="section"> <div class="head"> <h1 id="DESCRIPTION" onclick="switch_section(this)" title="Click title to show/hide section content.">DESCRIPTION</h1> <a href="#body" class="top" title="Back up to the top of the page" >Top</a> </div> <div class="body"> <p> TODO </p> </div> </div> <div class="section"> <div class="head"> <h1 id="METHODS" onclick="switch_section(this)" title="Click title to show/hide section content.">METHODS</h1> <a href="#body" class="top" title="Back up to the top of the page" >Top</a> </div> <div class="body"> <div class="subsection"> <div class="head"> <h2 id="method_new" class="method" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">new($context, \%config)</h2> <a href="#body" class="top" title="Back up to the top of the page" >Top</a> </div> <div class="body"> <p> Creates a new Template::View presenting a custom view of the specified $context object. </p> <p> A reference to a hash array of configuration options may be passed as the second argument. </p> <ul> <li><b id="item_prefix">prefix</b> <p> Prefix added to all template names. </p> <pre><span class="tt">[% USE view(prefix =&gt; 'my_') %]</span> <span class="tt">[% view.view('foo', a =&gt; 20) %]</span> # =&gt; my_foo</pre> </li> <li><b id="item_suffix">suffix</b> <p> Suffix added to all template names. </p> <pre><span class="tt">[% USE view(suffix =&gt; '.tt2') %]</span> <span class="tt">[% view.view('foo', a =&gt; 20) %]</span> # =&gt; foo.tt2</pre> </li> <li><b id="item_map">map</b> <p> Hash array mapping reference types to template names. The print() method uses this to determine which template to use to present any particular item. The TEXT, HASH and ARRAY items default to 'test', 'hash' and 'list' appropriately. </p> <pre><span class="tt">[% USE view(map =&gt; { ARRAY =&gt; 'my_list', HASH =&gt; 'your_hash', My::Foo =&gt; 'my_foo', } ) %]</span> <span class="tt">[% view.print(some_text) %]</span> # =&gt; text <span class="tt">[% view.print(a_list) %]</span> # =&gt; my_list <span class="tt">[% view.print(a_hash) %]</span> # =&gt; your_hash <span class="tt">[% view.print(a_foo) %]</span> # =&gt; my_foo <span class="tt">[% BLOCK text %]</span> Text: <span class="tt">[% item %]</span> <span class="tt">[% END %]</span> <span class="tt">[% BLOCK my_list %]</span> list: <span class="tt">[% item.join(', ') %]</span> <span class="tt">[% END %]</span> <span class="tt">[% BLOCK your_hash %]</span> hash keys: <span class="tt">[% item.keys.sort.join(', ') [% END %]</span> <span class="tt">[% BLOCK my_foo %]</span> Foo: <span class="tt">[% item.this %]</span>, <span class="tt">[% item.that %]</span> <span class="tt">[% END %]</span></pre> </li> <li><b id="item_method">method</b> <p> Name of a method which objects passed to print() may provide for presenting themselves to the view. If a specific map entry can't be found for an object reference and it supports the method (default: 'present') then the method will be called, passing the view as an argument. The object can then make callbacks against the view to present itself. </p> <pre>package Foo; sub present { my ($self, $view) = @_; return "a regular view of a Foo\n"; } sub debug { my ($self, $view) = @_; return "a debug view of a Foo\n"; }</pre> <p> In a template: </p> <pre><span class="tt">[% USE view %]</span> <span class="tt">[% view.print(my_foo_object) %]</span> # a regular view of a Foo <span class="tt">[% USE view(method =&gt; 'debug') %]</span> <span class="tt">[% view.print(my_foo_object) %]</span> # a debug view of a Foo</pre> </li> <li><b id="item_default">default</b> <p> Default template to use if no specific map entry is found for an item. </p> <pre><span class="tt">[% USE view(default =&gt; 'my_object') %]</span> <span class="tt">[% view.print(objref) %]</span> # =&gt; my_object</pre> <p> If no map entry or default is provided then the view will attempt to construct a template name from the object class, substituting any sequence of non-word characters to single underscores, e.g. </p> <pre># 'fubar' is an object of class Foo::Bar <span class="tt">[% view.print(fubar) %]</span> # =&gt; Foo_Bar</pre> <p> Any current prefix and suffix will be added to both the default template name and any name constructed from the object class. </p> </li> <li><b id="item_notfound">notfound</b> <p> Fallback template to use if any other isn't found. </p> </li> <li><b id="item_item">item</b> <p> Name of the template variable to which the print() method assigns the current item. Defaults to 'item'. </p> <pre><span class="tt">[% USE view %]</span> <span class="tt">[% BLOCK list %]</span> <span class="tt">[% item.join(', ') %]</span> <span class="tt">[% END %]</span> <span class="tt">[% view.print(a_list) %]</span> <span class="tt">[% USE view(item =&gt; 'thing') %]</span> <span class="tt">[% BLOCK list %]</span> <span class="tt">[% thing.join(', ') %]</span> <span class="tt">[% END %]</span> <span class="tt">[% view.print(a_list) %]</span></pre> </li> <li><b id="item_view_prefix">view_prefix</b> <p> Prefix of methods which should be mapped to view() by AUTOLOAD. Defaults to 'view_'. </p> <pre><span class="tt">[% USE view %]</span> <span class="tt">[% view.view_header() %]</span> # =&gt; view('header') <span class="tt">[% USE view(view_prefix =&gt; 'show_me_the_' %]</span> <span class="tt">[% view.show_me_the_header() %]</span> # =&gt; view('header')</pre> </li> <li><b id="item_view_naked">view_naked</b> <p> Flag to indcate if any attempt should be made to map method names to template names where they don't match the view_prefix. Defaults to 0. </p> <pre><span class="tt">[% USE view(view_naked =&gt; 1) %]</span> <span class="tt">[% view.header() %]</span> # =&gt; view('header')</pre> </li> </ul> </div> </div> <div class="subsection"> <div class="head"> <h2 id="method_print" class="method" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">print( $obj1, $obj2, ... \%config)</h2> <a href="#body" class="top" title="Back up to the top of the page" >Top</a> </div> <div class="body"> <p> TODO </p> </div> </div> <div class="subsection"> <div class="head"> <h2 id="method_view" class="method" onclick="switch_subsection(this)" title="Click title to show/hide sub-section content.">view( $template, \%vars, \%config );</h2> <a href="#body" class="top" title="Back up to the top of the page" >Top</a> </div> <div class="body"> <p> TODO </p> </div> </div> </div> </div> <div class="section"> <div class="head"> <h1 id="AUTHOR" onclick="switch_section(this)" title="Click title to show/hide section content.">AUTHOR</h1> <a href="#body" class="top" title="Back up to the top of the page" >Top</a> </div> <div class="body"> <p> Andy Wardley &lt;abw@wardley.org&gt; <a href="http://wardley.org/">http://wardley.org/</a> </p> </div> </div> <div class="section"> <div class="head"> <h1 id="COPYRIGHT" onclick="switch_section(this)" title="Click title to show/hide section content.">COPYRIGHT</h1> <a href="#body" class="top" title="Back up to the top of the page" >Top</a> </div> <div class="body"> <p> Copyright (C) 2000-2007 Andy Wardley. All Rights Reserved. </p> <p> This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. </p> </div> </div> <div class="section"> <div class="head"> <h1 id="SEE_ALSO" onclick="switch_section(this)" title="Click title to show/hide section content.">SEE ALSO</h1> <a href="#body" class="top" title="Back up to the top of the page" >Top</a> </div> <div class="body"> <p> <a href="../../modules/Template/Plugin.html">Template::Plugin</a> </p> </div> </div> </div></div> <br class="clear" /> <div class="pageinfo"> <a href="http://template-toolkit.org/docs/modules/Template/View.html">http://template-toolkit.org/docs/modules/Template/View.html</a> </div> </div> <div id="footer"> <a href="http://opensource.org/" class="osi"></a> <div class="controls"> <div class="pager"> <a href="../../modules/Template/VMethods.html" title="Template::VMethods" class="go back">Back<span class="about"><h4>Template::VMethods</h4></span></a> <a href="../../modules/Template/index.html" title="Template::* Modules" class="go up">Up<span class="about"><h4>Template::* Modules</h4></span></a> <span class="go next">Next<span class="about"></span></span> </div> </div> <div class="copyright"> Copyright &copy; 1996-2012 <a href="http://wardley.org/">Andy Wardley</a>. 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