Added search filter for task priority

ChangeLog

@@ -4,6 +4,7 @@ Version 1.0.32 (unreleased)
 New features:
 
 * New automated action to close tasks without activity in a specific column
+* Added search filter for task priority
 * Added the possibility to hide tasks in dashboard for a specific column
 
 Improvements:

app/Filter/TaskPriorityFilter.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Kanboard\Filter;
+
+use Kanboard\Core\Filter\FilterInterface;
+use Kanboard\Model\TaskModel;
+
+/**
+ * Class TaskPriorityFilter
+ *
+ * @package Kanboard\Filter
+ * @author  Frederic Guillot
+ */
+class TaskPriorityFilter extends BaseFilter implements FilterInterface
+{
+    /**
+     * Get search attribute
+     *
+     * @access public
+     * @return string[]
+     */
+    public function getAttributes()
+    {
+        return array('priority');
+    }
+
+    /**
+     * Apply filter
+     *
+     * @access public
+     * @return FilterInterface
+     */
+    public function apply()
+    {
+        $this->query->eq(TaskModel::TABLE.'.priority', $this->value);
+        return $this;
+    }
+}

app/ServiceProvider/FilterProvider.php

@@ -21,6 +21,7 @@ use Kanboard\Filter\TaskDueDateFilter;
 use Kanboard\Filter\TaskIdFilter;
 use Kanboard\Filter\TaskLinkFilter;
 use Kanboard\Filter\TaskModificationDateFilter;
+use Kanboard\Filter\TaskPriorityFilter;
 use Kanboard\Filter\TaskProjectFilter;
 use Kanboard\Filter\TaskReferenceFilter;
 use Kanboard\Filter\TaskStatusFilter;
@@ -137,6 +138,7 @@ class FilterProvider implements ServiceProviderInterface
                 ->withFilter(TaskColorFilter::getInstance()
                     ->setColorModel($c['colorModel'])
                 )
+                ->withFilter(new TaskPriorityFilter())
                 ->withFilter(new TaskColumnFilter())
                 ->withFilter(new TaskCommentFilter())
                 ->withFilter(TaskCreationDateFilter::getInstance()

tests/units/Filter/TaskPriorityFilterTest.php

@@ -0,0 +1,47 @@
+<?php
+
+use Kanboard\Filter\TaskPriorityFilter;
+use Kanboard\Model\ProjectModel;
+use Kanboard\Model\TaskCreationModel;
+use Kanboard\Model\TaskFinderModel;
+
+require_once __DIR__.'/../Base.php';
+
+class TaskPriorityFilterTest extends Base
+{
+    public function testWithDefinedPriority()
+    {
+        $taskFinder = new TaskFinderModel($this->container);
+        $taskCreation = new TaskCreationModel($this->container);
+        $projectModel = new ProjectModel($this->container);
+        $query = $taskFinder->getExtendedQuery();
+
+        $this->assertEquals(1, $projectModel->create(array('name' => 'Test')));
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Test', 'project_id' => 1, 'priority' => 2)));
+
+        $filter = new TaskPriorityFilter();
+        $filter->withQuery($query);
+        $filter->withValue(2);
+        $filter->apply();
+
+        $this->assertCount(1, $query->findAll());
+    }
+
+    public function testWithNoPriority()
+    {
+        $taskFinder = new TaskFinderModel($this->container);
+        $taskCreation = new TaskCreationModel($this->container);
+        $projectModel = new ProjectModel($this->container);
+        $query = $taskFinder->getExtendedQuery();
+
+        $this->assertEquals(1, $projectModel->create(array('name' => 'Test')));
+        $this->assertEquals(1, $taskCreation->create(array('title' => 'Test', 'project_id' => 1)));
+
+        $filter = new TaskPriorityFilter();
+        $filter->withQuery($query);
+        $filter->withValue(2);
+        $filter->apply();
+
+        $this->assertCount(0, $query->findAll());
+    }
+}