Zend_Layout uses Zend_Filter_Inflector to
establish a filter chain for translating a layout name to a layout
script path. By default, it uses the rules 'Word_CamelCaseToDash'
followed by 'StringToLower', and the suffix 'phtml' to transform the
name to a path. As some examples:
'foo' will be transformed to 'foo.phtml'.
'FooBarBaz' will be transformed to 'foo-bar-baz.phtml'.
You have three options for modifying inflection: modify the
inflection target and/or view suffix via Zend_Layout
accessors, modify the inflector rules and target of the inflector
associated with the Zend_Layout instance, or create
your own inflector instance and pass it to
Zend_Layout::setInflector().
Example 498. Using Zend_Layout accessors to modify the inflector
The default Zend_Layout inflector uses static
references for the target and view script suffix, and
has accessors for setting these values.
<?php
// Set the inflector target:
$layout->setInflectorTarget('layouts/:script.:suffix');
// Set the layout view script suffix:
$layout->setViewSuffix('php');
Example 499. Direct modification of Zend_Layout inflector
Inflectors have a target and one or more rules. The default
target used with Zend_Layout is ':script.:suffix';
':script' is passed the registered layout name, while ':suffix'
is a static rule of the inflector.
Let's say you want the layout script to end in the suffix 'html', and that you want to separate MixedCase and camelCased words with underscores instead of dashes, and not lowercase the name. Additionally, you want it to look in a 'layouts' subdirectory for the script.
<?php
$layout->getInflector()->setTarget('layouts/:script.:suffix')
->setStaticRule('suffix', 'html')
->setFilterRule(array('Word_CamelCaseToUnderscore'));
Example 500. Custom inflectors
In most cases, modifying the existing inflector will be enough.
However, you may have an inflector you wish to use in several
places, with different objects of different types.
Zend_Layout supports this.
<?php
$inflector = new Zend_Filter_Inflector('layouts/:script.:suffix');
$inflector->addRules(array(
':script' => array('Word_CamelCaseToUnderscore'),
'suffix' => 'html'
));
$layout->setInflector($inflector);
Inflection can be disabled
Inflection can be disabled and enabled using accessors on the
Zend_Layout object. This can be useful if you want
to specify an absolute path for a layout view script, or know
that the mechanism you will be using for specifying the layout
script does not need inflection. Simply use the
enableInflector() and
disableInflector() methods.