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[POC] "Additional filters" for the input screen settings #1205

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[POC] "Additional filters" for the input screen settings #1205

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3 changes: 2 additions & 1 deletion composer.json
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,8 @@
"contao-community-alliance/dependency-container": "~1.6",
"contao-community-alliance/event-dispatcher": "~1.3",
"contao-community-alliance/events-contao-bindings": "~3.2",
"doctrine/cache": "~1.3"
"doctrine/cache": "~1.3",
"symfony/expression-language": "^3.3"
},
"require-dev": {
"cyberspectrum/contao-toolbox": "~0.6",
Expand Down
70 changes: 70 additions & 0 deletions contao/config/event_listeners.php
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Expand Up @@ -22,6 +22,10 @@
*/

use ContaoCommunityAlliance\DcGeneral\Contao\View\Contao2BackendView\Event\GetPropertyOptionsEvent;
use ContaoCommunityAlliance\DcGeneral\DataDefinition\ModelRelationship\FilterBuilder;
use ContaoCommunityAlliance\DcGeneral\Factory\Event\BuildDataDefinitionEvent;
use MetaModels\Attribute\IAttribute;
use MetaModels\DcGeneral\DataDefinition\IMetaModelDataDefinition;
use MetaModels\DcGeneral\Events\MetaModel\CreateVariantButton;
use MetaModels\DcGeneral\Events\MetaModel\CutButton;
use MetaModels\DcGeneral\Events\MetaModel\DuplicateModel;
Expand All @@ -40,8 +44,11 @@
use MetaModels\Filter\Setting\Events\CreateFilterSettingFactoryEvent;
use MetaModels\Filter\Setting\SimpleLookupFilterSettingTypeFactory;
use MetaModels\Filter\Setting\StaticIdListFilterSettingTypeFactory;
use MetaModels\IMetaModelsServiceContainer;
use MetaModels\MetaModelsEvents;
use MultiColumnWizard\Event\GetOptionsEvent;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\ExpressionLanguage\ExpressionLanguage;

return array(
MetaModelsEvents::SUBSYSTEM_BOOT => array(
Expand Down Expand Up @@ -93,6 +100,69 @@ function (CreateFilterSettingFactoryEvent $event) {
->addTypeFactory(new ConditionOrFilterSettingTypeFactory());
}
),
GetOptionsEvent::NAME => array(
function (GetOptionsEvent $event) {
if (('tl_metamodel_dca' !== $event->getEnvironment()->getDataDefinition()->getName())
|| ('additionalFilters' !== $event->getPropertyName())
|| ('property' !== $event->getSubPropertyName())) {
return;
}

/** @var IMetaModelsServiceContainer $serviceContainer */
$serviceContainer = $GLOBALS['container']['metamodels-service-container'];

$metaModel = $serviceContainer->getFactory()->getMetaModel('mm_employee');

$options = array_values(array_merge(
$GLOBALS['METAMODELS_SYSTEM_COLUMNS'],
array_map(
function (
/** @var IAttribute $attr */
$attr
) {
return $attr->getColName();
},
$metaModel->getAttributes()
)
));

$event->setOptions($options);
}
),
BuildDataDefinitionEvent::NAME => array(
[function (BuildDataDefinitionEvent $event) {
$container = $event->getContainer();
if (!$container instanceof IMetaModelDataDefinition) {
return;
}
$definition = $container->getBasicDefinition();
$screenId = $container->getMetaModelDefinition()->getActiveInputScreen();
$dca = \Database::getInstance()
->prepare('SELECT * FROM tl_metamodel_dca WHERE id=?')
->execute($screenId);

if (empty($dca->additionalFilters)) {
return;
}

// Fetch current filter
$additionalFilter = $definition->getAdditionalFilter($definition->getDataProvider()) ?: [];
$filterBuilder = FilterBuilder::fromArrayForRoot($additionalFilter)->getFilter();

$language = new ExpressionLanguage();
$exprVars = ['user' => $GLOBALS['container']['user']];

foreach (deserialize($dca->additionalFilters,true) as $f) {
$value = $language->evaluate($f['expression'], $exprVars);
$filterBuilder->andPropertyEquals($f['property'], $value);
}

$definition->setAdditionalFilter(
$definition->getDataProvider(),
$filterBuilder->getAllAsArray()
);
}, -500],
),
// deprecated since 2.0, to be removed in 3.0.
MetaModelsEvents::PARSE_ITEM => array(
array(
Expand Down
40 changes: 39 additions & 1 deletion contao/dca/tl_metamodel_dca.php
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Expand Up @@ -244,6 +244,7 @@
'iseditable',
'iscreatable',
'isdeleteable',
'additionalFilters'
),
)
),
Expand Down Expand Up @@ -488,6 +489,43 @@ function ($langCode) {
'tl_class' => 'w50 m12 cbx',
),
'sql' => "char(1) NOT NULL default ''"
)
),
'additionalFilters' => array
(
'label' => &$GLOBALS['TL_LANG']['tl_metamodel_dca']['additionalFilters'],
'exclude' => true,
'inputType' => 'multiColumnWizard',
'eval' => array
(
'tl_class' => 'clr',
'columnFields' => array
(
'property' => array
(
'label' => &$GLOBALS['TL_LANG']['tl_metamodel_dca']['addfilter_property'],
'exclude' => true,
'inputType' => 'select',
'eval' => array
(
'tl_class' => 'clr',
'style' => 'width:200px',
'includeBlankOption' => true,
'chosen' => 'true',
)
),
'expression' => array
(
'label' => &$GLOBALS['TL_LANG']['tl_metamodel_dca']['addfilter_expression'],
'exclude' => true,
'inputType' => 'text',
'eval' => array
(
'style' => 'width:180px',
)
),
),
),
'sql' => "text NULL"
),
)
);