Documentation

Twig extends WriterAbstract
in package
implements Initializable Uses IoTrait

A specialized writer which uses the Twig templating engine to convert templates to HTML output.

This writer support the Query attribute of a Transformation to generate multiple templates in one transformation.

The Query attribute supports a simplified version of Twig queries and will use each individual result as the 'node' global variable in the Twig template.

Example:

Suppose a Query indexes.classes is given then this writer will be invoked as many times as there are classes in the project and the 'node' global variable in twig will be filled with each individual

When using the Query attribute in the transformation it is important to use a variable in the Artifact attribute as well (otherwise the same file would be overwritten several times).

A simple example transformation line could be:

<transformation
    writer="twig"
    source="templates/twig/index.twig"
    artifact="index.html"
/>

This example transformation would use this writer to transform the index.twig template file in the twig template folder into index.html at the destination location. Since no Query is provided the 'node' global variable will contain the Project Descriptor of the Object Graph.

A complex example transformation line could be:

<transformation
    query="indexes.classes"
    writer="twig"
    source="templates/twig/class.twig"
    artifact="{{name}}.html"/>

This example transformation would use this writer to transform the class.twig template file in the twig template folder into a file with the 'name' property for an individual class inside the Object Graph. Since a Query is provided will the 'node' global variable contain a specific instance of a class applicable to the current iteration.

Tags
see
self::getDestinationPath()

for more information about variables in the Artifact attribute.

Interfaces, Classes and Traits

Initializable

Table of Contents

$environment  : Environment
$environmentFactory  : EnvironmentFactory
$pathGenerator  : PathGenerator
__construct()  : mixed
__toString()  : string
checkRequirements()  : void
This method verifies whether PHP has all requirements needed to run this writer.
initialize()  : void
transform()  : void
This method combines the ProjectDescriptor and the given target template and creates a static html page at the artifact location.
copy()  : void
persistTo()  : void
readSourceFile()  : string
copyDirectory()  : void
getTemplatePath()  : string
Returns the path belonging to the template.
isGlobalTemplateReference()  : bool
normalizeDestination()  : string
normalizeSourcePath()  : string
stripFirstPartOfPath()  : string

Properties

Methods

__toString()

public __toString() : string
Return values
string —

checkRequirements()

This method verifies whether PHP has all requirements needed to run this writer.

public checkRequirements() : void

If one of the requirements is missing for this Writer then an exception of type RequirementMissing should be thrown; this indicates to the calling process that this writer will not function.

Tags
throws
RequirementMissing

When a requirements is missing stating which one.

codeCoverageIgnore
Return values
void —

copy()

protected copy(Transformation $transformation, string $path, string $destination) : void
Parameters
$transformation : Transformation
$path : string
$destination : string
Return values
void —

persistTo()

protected persistTo(Transformation $transformation, string $path, string $contents) : void
Parameters
$transformation : Transformation
$path : string
$contents : string
Return values
void —

readSourceFile()

protected readSourceFile(Transformation $transformation, string $path) : string
Parameters
$transformation : Transformation
$path : string
Return values
string —

copyDirectory()

private copyDirectory(Transformation $transformation, string $path, string $destination) : void
Parameters
$transformation : Transformation
$path : string
$destination : string
Return values
void —

getTemplatePath()

Returns the path belonging to the template.

private getTemplatePath(Transformation $transformation) : string
Parameters
$transformation : Transformation
Return values
string —

isGlobalTemplateReference()

private isGlobalTemplateReference(string $path) : bool
Parameters
$path : string
Return values
bool —

normalizeDestination()

private normalizeDestination(string $destination) : string
Parameters
$destination : string
Return values
string —

normalizeSourcePath()

private normalizeSourcePath(string $path) : string
Parameters
$path : string
Return values
string —

stripFirstPartOfPath()

private stripFirstPartOfPath(string $path) : string
Parameters
$path : string
Return values
string —

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