eden / handlebars
PHP Handlebars with JS interface to match with compile time helper support and super nice compile time error reporting.
Installs: 7 860
Dependents: 1
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Stars: 2
Watchers: 5
Forks: 1
Open Issues: 0
Requires
- php: >=5.4.1
- eden/core: 4.*
README
====
Install
composer install eden/handlebars
====
Enable Eden
The following documentation uses eden()
in its example reference. Enabling this function requires an extra step as descirbed in this section which is not required if you access this package using the following.
Eden\Handlebars\Index::i();
When using composer, there is not an easy way to access functions from packages. As a workaround, adding this constant in your code will allow eden()
to be available after.
Eden::DECORATOR;
For example:
Eden::DECORATOR;
eden()->inspect('Hello World');
====
Introduction
PHP Handlebars with JS interface to match with compile time helper support and super nice compile time error reporting. This version of Handlebars is based on caching the compiled templates and inheritently made the overall compile times faster. Loading at ~50ms uncached and ~30ms cached.
====
Basic Usage
Rendering
$template = eden('handlebars')->compile('{{foo}} {{bar}}');
echo $template(array('foo' => 'BAR', 'bar' => 'ZOO'));
Registering Helpers
$template = eden('handlebars')
->registerHelper('bar', function($options) {
return 'ZOO';
})
->compile('{{foo}} {{bar}}');
echo $template(array('foo' => 'BAR'));
Registering Partials
$template = eden('handlebars')
->registerPartial('bar', 'zoo')
->compile('{{foo}} {{> bar}}');
echo $template(array('foo' => 'BAR'));
====
Features
- PHP API - designed to match the handlebars.js documentation
- registerHelper() - Matches exactly what you expect from handlebars.js (except it's PHP syntax)
- registerPartial() - accepts strings and functions as callbacks
- Literals like
{{./foo}}
and{{../bar}}
are evaluated properly - Comments like
{{!-- Something --}}
and{{! Something }}
supported - Trims like
{{~#each}}
and{{~foo~}}
supported - Mustache backwards compatibility
{{#foo}}{{this}}{{/foo}}
- Tokenizer helpers to optimize custom code generation to cache
- Event handlers for unknown helpers and unknown partials
- Default Helpers matching handlebars.js
- each - and
{{#each foo as |value, key|}}
- Please note that there is an issue with
each
being slow depending on the size of the object - We need help optimizing this
- Please note that there is an issue with
- with
- unless
- if
- each - and
De-Features (or whatever the opposite of features is)
- Does not support file templates.
- You need to load them up and pass it into Handlebars.
- If this is a problem you should consider other Handlebars PHP libraries
- You can always create a helper for this
- This de-feature will be considered upon requests ( create an issue :) )
- Partial Failover
- Something we haven't had a chance to come around doing yet as we did not have a need
- This de-feature will be considered upon requests ( create an issue :) )
- Safe String/Escaping
- PHP has functions that can turn a string "safe".
- We didn't want to create something that already exists in other contexts
- This de-feature will be considered upon requests ( create an issue :) )
- Utils
- PHP has functions that support most of the listed Utils in handlebars.js
- We didn't want to create something that already exists in other contexts
- This de-feature will be considered upon requests ( create an issue :) )
- Dynamic Partials
- At the bottom of our pipe
- because of it's difficulty to recreate
- and practicality
- This de-feature will be considered upon requests ( create an issue :( )
- Inline Partials
- TODO
- Decorators
- TODO
- Frames
- TODO
====
Production Ready
When your templates are ready for a production (live) environment, it is recommended that caching be used. To enable cache:
- Create a cache folder and make sure permissions are properly set for handlebars to write files to it.
- Enable cache by using
eden('handlebars')->setCache(__DIR__.'/your/cache/folder/location');
- If the folder location does not exist, caching will be disabled.
====
API
====
compile
Returns a callback that binds the data with the template
Usage
eden('handlebars')->compile(string $string);
Parameters
string $string
- the template string
Returns function
- the template binding handler
Example
eden('handlebars')->compile();
====
getCache
Returns the active cache path
Usage
eden('handlebars')->getCache();
Returns Closure
====
getHelper
Returns a helper given the name
Usage
eden('handlebars')->getHelper('if');
Parameters
string $name
- the name of the helper
Returns Closure
====
getHelpers
Returns all the registered helpers
Usage
eden('handlebars')->getHelpers();
Parameters
Returns array
====
getPartial
Returns a partial given the name
Usage
eden('handlebars')->getPartial('foobar');
Parameters
string $name
- the name of the partial
Returns string
====
getPartials
Returns all the registered partials
Usage
eden('handlebars')->getPartials();
Parameters
Returns array
====
registerHelper
The famous register helper matching the Handlebars API
Usage
eden('handlebars')->registerHelper(string $name, function $helper);
Parameters
string $name
- the name of the helperfunction $helper
- the helper handler
Returns Eden\Handlebrs\Index
Example
eden('handlebars')->registerHelper();
====
registerPartial
Delays registering partials to the engine because there is no add partial method...
Usage
eden('handlebars')->registerPartial(string $name, string $partial);
Parameters
string $name
- the name of the helperstring $partial
- the helper handler
Returns Eden\Handlebrs\Index
Example
eden('handlebars')->registerPartial();
====
setCache
Enables the cache option
Usage
eden('handlebars')->setCache(string $path);
Parameters
string $path
- The cache path
Returns Eden\Handlebrs\Index
Example
eden('handlebars')->setCache('/path/to/cache/folder');
====
setPrefix
Sets the file name prefix for caching
Usage
eden('handlebars')->setPrefix(string $prefix);
Parameters
string $prefix
- Custom prefix name
Returns Eden\Handlebrs\Index
Example
eden('handlebars')->setPrefix('special-template-');
====
unregisterHelper
The opposite of registerHelper
Usage
eden('handlebars')->unregisterHelper(string $name);
Parameters
string $name
- the helper name
Returns Eden\Handlebars\Index
Example
eden('handlebars')->unregisterHelper();
====
unregisterPartial
The opposite of registerPartial
Usage
eden('handlebars')->unregisterPartial(string $name);
Parameters
string $name
- the partial name
Returns Eden\Handlebars\Index
Example
eden('handlebars')->unregisterPartial();
====
Contributions to Eden are following the Github work flow. Please read up before contributing.
##Setting up your machine with the Eden repository and your fork
- Fork the repository
- Fire up your local terminal create a new branch from the
v4
branch of your fork with a branch name describing what your changes are. Possible branch name types:- bugfix
- feature
- improvement
- Make your changes. Always make sure to sign-off (-s) on all commits made (git commit -s -m "Commit message")
##Making pull requests
- Please ensure to run
phpunit
before making a pull request. - Push your code to your remote forked version.
- Go back to your forked version on GitHub and submit a pull request.
- An Eden developer will review your code and merge it in when it has been classified as suitable.