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Add ifMore helper
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@ -31,6 +31,7 @@ class Helpers extends BaseHelpers
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$this->add('ifEven', new IfEvenHelper());
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$this->add('ifOdd', new IfOddHelper());
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$this->add('ifLess', new IfLessHelper());
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$this->add('ifMore', new IfMoreHelper());
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$this->add('unlessEqual', new UnlessEqualHelper());
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}
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}
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47
src/Comparison/IfMoreHelper.php
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47
src/Comparison/IfMoreHelper.php
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@ -0,0 +1,47 @@
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<?php
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/*
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* This file is part of Handlebars.php Helpers Set
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*
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* (c) Dmitriy Simushev <simushevds@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace JustBlackBird\HandlebarsHelpers\Comparison;
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use Handlebars\Helper as HelperInterface;
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/**
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* Conditional helper that checks if one value is more than another one.
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*
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* By "more" strict inequality is meant. That's why in cases where two equal
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* values are compared the result of the "more" operation is false.
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*
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* Example of usage:
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* ```handlebars
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* {{#ifMore first second}}
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* The first argument is more than the second one.
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* {{else}}
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* The first argument is less or equal to the second one.
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* {{/ifMore}}
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* ```
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*
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* @author Dmitriy Simushev <simushevds@gmail.com>
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*/
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class IfMoreHelper extends AbstractComparisonHelper implements HelperInterface
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{
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/**
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* {@inheritdoc}
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*/
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protected function evaluateCondition($args)
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{
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if (count($args) != 2) {
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throw new \InvalidArgumentException(
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'"ifMore" helper expects exactly two arguments.'
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);
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}
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return ($args[0] > $args[1]);
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}
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}
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@ -43,6 +43,7 @@ class HelpersTest extends \PHPUnit_Framework_TestCase
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array('ifEven', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfEvenHelper'),
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array('ifOdd', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfOddHelper'),
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array('ifLess', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfLessHelper'),
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array('ifMore', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfMoreHelper'),
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array('unlessEqual', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\UnlessEqualHelper'),
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);
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}
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90
tests/Comparison/IfMoreHelperTest.php
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90
tests/Comparison/IfMoreHelperTest.php
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@ -0,0 +1,90 @@
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<?php
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/*
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* This file is part of Handlebars.php Helpers Set
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*
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* (c) Dmitriy Simushev <simushevds@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace JustBlackBird\HandlebarsHelpers\Tests\Comparison;
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use JustBlackBird\HandlebarsHelpers\Comparison\IfMoreHelper;
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/**
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* Test class for "ifMore" helper.
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*
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* @author Dmitriy Simushev <simushevds@gmail.com>
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*/
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class IfMoreHelperTest extends \PHPUnit_Framework_TestCase
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{
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/**
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* Tests conditions work as expected.
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*
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* @dataProvider conditionProvider
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*/
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public function testCondition($value, $border, $is_less)
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{
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$helpers = new \Handlebars\Helpers(array('ifMore' => new IfMoreHelper()));
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$engine = new \Handlebars\Handlebars(array('helpers' => $helpers));
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$this->assertEquals(
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$engine->render(
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'{{#ifMore value border}}true{{else}}false{{/ifMore}}',
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array(
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'value' => $value,
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'border' => $border,
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)
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),
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$is_less ? 'true' : 'false'
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);
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}
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/**
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* A data provider for testCondition method.
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*/
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public function conditionProvider()
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{
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return array(
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// Less values with different types.
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array(3, 18, false),
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array("42", "314", false),
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// Equal values with different types.
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array(0, 0, false),
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array("42", "42", false),
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// More values with different types.
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array(89, 1, true),
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array("34", "33", true),
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);
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}
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/**
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* Tests that exception is thrown if wrong number of arguments is used.
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*
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* @expectedException InvalidArgumentException
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* @dataProvider wrongArgumentsProvider
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*/
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public function testArgumentsCount($template)
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{
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$helpers = new \Handlebars\Helpers(array('ifMore' => new IfMoreHelper()));
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$engine = new \Handlebars\Handlebars(array('helpers' => $helpers));
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$engine->render($template, array());
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}
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/**
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* A data provider for testArgumentsCount method.
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*/
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public function wrongArgumentsProvider()
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{
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return array(
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// Not enough arguments
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array('{{#ifMore}}yes{{else}}no{{/ifMore}}'),
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// Still not enough arguments
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array('{{#ifMore 1}}yes{{else}}no{{/ifMore}}'),
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// Too much arguments
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array('{{#ifMore 1 2 3}}yes{{else}}no{{/ifMore}}'),
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);
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}
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}
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