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<?php |
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namespace Psi\Component\Grid; |
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use Psi\Component\Grid\Metadata\GridMetadata; |
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use Psi\Component\ObjectAgent\AgentInterface; |
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use Psi\Component\ObjectAgent\Query\Query; |
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class GridViewFactory |
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{ |
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public function __construct( |
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CellFactory $cellFactory, |
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FilterBarFactory $filterFactory |
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) { |
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$this->cellFactory = $cellFactory; |
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$this->filterFactory = $filterFactory; |
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} |
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public function createView(AgentInterface $agent, GridContext $gridContext, GridMetadata $gridMetadata) |
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{ |
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// create the filter form based on the metadata and submit any data. |
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$filterForm = $this->filterFactory->createForm($gridMetadata, $agent->getCapabilities()); |
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$filterForm->submit($gridContext->getFilter()); |
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// create the query and get the data collection from the object-agent. |
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$query = Query::create( |
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$gridContext->getClassFqn(), |
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$this->filterFactory->createExpression($gridMetadata, $filterForm->getData()), |
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$gridContext->getOrderings(), |
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$gridContext->getPageOffset(), |
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$gridContext->getPageSize() |
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); |
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$collection = new \IteratorIterator($agent->query($query)); |
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return new View\Grid( |
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$gridContext->getClassFqn(), |
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$gridMetadata->getName(), |
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new View\Table($this->cellFactory, $gridMetadata, $collection, $gridContext), |
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new View\Paginator($gridContext, count($collection), $this->getNumberOfRecords($agent, $query)), |
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new View\FilterBar($filterForm->createView(), $gridContext), |
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new View\ActionBar($gridMetadata) |
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); |
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} |
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private function getNumberOfRecords(AgentInterface $agent, Query $query) |
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{ |
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if (false === $agent->getCapabilities()->canQueryCount()) { |
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return; |
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} |
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return $agent->queryCount($query); |
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} |
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} |
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psiphp /
grid
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: