rename task to project_task and task_user to project_task_user; create project_task_category, fix bug in create project method

common/models/ProjectTaskCategory.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace common\models;
+
+use Yii;
+
+/**
+ * This is the model class for table "project_task_category".
+ *
+ * @property int $id
+ * @property string $title
+ * @property int $project_id
+ *
+ * @property Project $project
+ */
+class ProjectTaskCategory extends \yii\db\ActiveRecord
+{
+    /**
+     * {@inheritdoc}
+     */
+    public static function tableName()
+    {
+        return 'project_task_category';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function rules()
+    {
+        return [
+            [['project_id'], 'integer'],
+            [['title'], 'string', 'max' => 255],
+            [['project_id'], 'exist', 'skipOnError' => true, 'targetClass' => Project::className(), 'targetAttribute' => ['project_id' => 'id']],
+        ];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function attributeLabels()
+    {
+        return [
+            'id' => 'ID',
+            'title' => 'Название',
+            'project_id' => 'Проект',
+        ];
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getProject()
+    {
+        return $this->hasOne(Project::className(), ['id' => 'project_id']);
+    }
+}