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https://github.com/silverstripe/silverstripe-framework
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Enables more generic use of the fixture facilities without dependency on the YAML format, for example when creating fixtures from Behat step definitions. Note: The YamlFixture class needs to be created via Injector::inst()->create('YamlFixture') now, direct instantiation is no longer supported.
215 lines
6.9 KiB
PHP
215 lines
6.9 KiB
PHP
<?php
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require_once 'thirdparty/spyc/spyc.php';
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/**
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* Uses the Spyc library to parse a YAML document (see http://yaml.org).
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* YAML is a simple markup languages that uses tabs and colons instead of the more verbose XML tags,
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* and because of this much better for developers creating files by hand.
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*
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* The contents of the YAML file are broken into three levels:
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* - Top level: class names - Page and ErrorPage. This is the name of the dataobject class that should be created.
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* The fact that ErrorPage is actually a subclass is irrelevant to the system populating the database.
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* Each identifier you specify delimits a new database record.
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* This means that every record needs to have an identifier, whether you use it or not.
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* - Third level: fields - each field for the record is listed as a 3rd level entry.
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* In most cases, the field's raw content is provided.
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* However, if you want to define a relationship, you can do so using "=>"
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*
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* There are a couple of lines like this:
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* <code>
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* Parent: =>Page.about
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* </code>
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* This will tell the system to set the ParentID database field to the ID of the Page object with the identifier
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* 'about'. This can be used on any has-one or many-many relationship.
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* Note that we use the name of the relationship (Parent), and not the name of the database field (ParentID)
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*
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* On many-many relationships, you should specify a comma separated list of values.
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* <code>
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* MyRelation: =>Class.inst1,=>Class.inst2,=>Class.inst3
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* </code>
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*
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* An crucial thing to note is that the YAML file specifies DataObjects, not database records.
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* The database is populated by instantiating DataObject objects, setting the fields listed, and calling write().
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* This means that any onBeforeWrite() or default value logic will be executed as part of the test.
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* This forms the basis of our testURLGeneration() test above.
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*
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* For example, the URLSegment value of Page.staffduplicate is the same as the URLSegment value of Page.staff.
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* When the fixture is set up, the URLSegment value of Page.staffduplicate will actually be my-staff-2.
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*
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* Finally, be aware that requireDefaultRecords() is not called by the database populator -
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* so you will need to specify standard pages such as 404 and home in your YAML file.
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*
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* <code>
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* Page:
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* home:
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* Title: Home
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* about:
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* Title: About Us
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* staff:
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* Title: Staff
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* URLSegment: my-staff
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* Parent: =>Page.about
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* staffduplicate:
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* Title: Staff
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* URLSegment: my-staff
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* Parent: =>Page.about
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* products:
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* Title: Products
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* ErrorPage:
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* 404:
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* Title: Page not Found
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* ErrorCode: 404
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* </code>
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*
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* @package framework
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* @subpackage core
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*
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* @see http://code.google.com/p/spyc/
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*/
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class YamlFixture extends Object {
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/**
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* Absolute path to the .yml fixture file
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*
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* @var string
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*/
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protected $fixtureFile;
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/**
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* String containing fixture
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*
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* @var String
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*/
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protected $fixtureString;
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/**
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* @var FixtureFactory
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* @deprecated 3.1 Use writeInto() and FixtureFactory instead
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*/
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protected $factory;
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/**
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* @param String Absolute file path, or relative path to {@link Director::baseFolder()}
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*/
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public function __construct($fixture) {
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if(false !== strpos($fixture, "\n")) {
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$this->fixtureString = $fixture;
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} else {
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if(!Director::is_absolute($fixture)) $fixture = Director::baseFolder().'/'. $fixture;
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if(!file_exists($fixture)) {
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throw new InvalidArgumentException('YamlFixture::__construct(): Fixture path "' . $fixture
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. '" not found');
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}
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$this->fixtureFile = $fixture;
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}
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parent::__construct();
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}
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/**
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* @return String Absolute file path
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*/
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public function getFixtureFile() {
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return $this->fixtureFile;
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}
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/**
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* @return String Fixture string
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*/
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public function getFixtureString() {
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return $this->fixtureString;
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}
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/**
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* Get the ID of an object from the fixture.
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*
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* @deprecated 3.1 Use writeInto() and FixtureFactory accessors instead
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*
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* @param $className The data class, as specified in your fixture file. Parent classes won't work
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* @param $identifier The identifier string, as provided in your fixture file
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*/
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public function idFromFixture($className, $identifier) {
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Deprecation::notice('3.1', 'Use writeInto() and FixtureFactory accessors instead');
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if(!$this->factory) $this->factory = Injector::inst()->create('FixtureFactory');
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return $this->factory->getId($className, $identifier);
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}
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/**
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* Return all of the IDs in the fixture of a particular class name.
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*
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* @deprecated 3.1 Use writeInto() and FixtureFactory accessors instead
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*
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* @return A map of fixture-identifier => object-id
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*/
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public function allFixtureIDs($className) {
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Deprecation::notice('3.1', 'Use writeInto() and FixtureFactory accessors instead');
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if(!$this->factory) $this->factory = Injector::inst()->create('FixtureFactory');
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return $this->factory->getIds($className);
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}
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/**
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* Get an object from the fixture.
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*
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* @deprecated 3.1 Use writeInto() and FixtureFactory accessors instead
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*
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* @param $className The data class, as specified in your fixture file. Parent classes won't work
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* @param $identifier The identifier string, as provided in your fixture file
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*/
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public function objFromFixture($className, $identifier) {
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Deprecation::notice('3.1', 'Use writeInto() and FixtureFactory accessors instead');
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if(!$this->factory) $this->factory = Injector::inst()->create('FixtureFactory');
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return $this->factory->get($className, $identifier);
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}
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/**
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* Load a YAML fixture file into the database.
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* Once loaded, you can use idFromFixture() and objFromFixture() to get items from the fixture.
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*
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* Caution: In order to support reflexive relations which need a valid object ID,
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* the record is written twice: first after populating all non-relational fields,
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* then again after populating all relations (has_one, has_many, many_many).
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*
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* @deprecated 3.1 Use writeInto() and FixtureFactory instance instead
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*/
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public function saveIntoDatabase(DataModel $model) {
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Deprecation::notice('3.1', 'Use writeInto() and FixtureFactory instance instead');
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if(!$this->factory) $this->factory = Injector::inst()->create('FixtureFactory');
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$this->writeInto($this->factory);
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}
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/**
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* Persists the YAML data in a FixtureFactory,
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* which in turn saves them into the database.
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* Please use the passed in factory to access the fixtures afterwards.
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*
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* @param FixtureFactory $factory
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*/
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public function writeInto(FixtureFactory $factory) {
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$parser = new Spyc();
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if (isset($this->fixtureString)) {
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$fixtureContent = $parser->load($this->fixtureString);
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} else {
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$fixtureContent = $parser->loadFile($this->fixtureFile);
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}
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foreach($fixtureContent as $class => $items) {
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foreach($items as $identifier => $data) {
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if(ClassInfo::exists($class)) {
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$factory->createObject($class, $identifier, $data);
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} else {
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$factory->createRaw($class, $identifier, $data);
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}
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}
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}
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}
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}
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