1 files changed, 139 insertions, 0 deletions
diff --git a/app/Model/MetadataModel.php b/app/Model/MetadataModel.php
new file mode 100644
index 00000000..6177e5f3
--- /dev/null
+++ b/app/Model/MetadataModel.php
@@ -0,0 +1,139 @@
+<?php
+
+namespace Kanboard\Model;
+
+use Kanboard\Core\Base;
+
+/**
+ * Metadata
+ *
+ * @package  Kanboard\Model
+ * @author   Frederic Guillot
+ */
+abstract class MetadataModel extends Base
+{
+    /**
+     * Get the table
+     *
+     * @abstract
+     * @access protected
+     * @return string
+     */
+    abstract protected function getTable();
+
+    /**
+     * Define the entity key
+     *
+     * @abstract
+     * @access protected
+     * @return string
+     */
+    abstract protected function getEntityKey();
+
+    /**
+     * Get all metadata for the entity
+     *
+     * @access public
+     * @param  integer  $entity_id
+     * @return array
+     */
+    public function getAll($entity_id)
+    {
+        return $this->db
+            ->hashtable($this->getTable())
+            ->eq($this->getEntityKey(), $entity_id)
+            ->asc('name')
+            ->getAll('name', 'value');
+    }
+
+    /**
+     * Get a metadata for the given entity
+     *
+     * @access public
+     * @param  integer  $entity_id
+     * @param  string   $name
+     * @param  string   $default
+     * @return mixed
+     */
+    public function get($entity_id, $name, $default = '')
+    {
+        return $this->db
+            ->table($this->getTable())
+            ->eq($this->getEntityKey(), $entity_id)
+            ->eq('name', $name)
+            ->findOneColumn('value') ?: $default;
+    }
+
+    /**
+     * Return true if a metadata exists
+     *
+     * @access public
+     * @param  integer  $entity_id
+     * @param  string   $name
+     * @return boolean
+     */
+    public function exists($entity_id, $name)
+    {
+        return $this->db
+            ->table($this->getTable())
+            ->eq($this->getEntityKey(), $entity_id)
+            ->eq('name', $name)
+            ->exists();
+    }
+
+    /**
+     * Update or insert new metadata
+     *
+     * @access public
+     * @param  integer  $entity_id
+     * @param  array    $values
+     * @return boolean
+     */
+    public function save($entity_id, array $values)
+    {
+        $results = array();
+        $user_id = $this->userSession->getId();
+        $timestamp = time();
+
+        $this->db->startTransaction();
+
+        foreach ($values as $key => $value) {
+            if ($this->exists($entity_id, $key)) {
+                $results[] = $this->db->table($this->getTable())
+                    ->eq($this->getEntityKey(), $entity_id)
+                    ->eq('name', $key)->update(array(
+                        'value' => $value,
+                        'changed_on' => $timestamp,
+                        'changed_by' => $user_id,
+                    ));
+            } else {
+                $results[] = $this->db->table($this->getTable())->insert(array(
+                    'name' => $key,
+                    'value' => $value,
+                    $this->getEntityKey() => $entity_id,
+                    'changed_on' => $timestamp,
+                    'changed_by' => $user_id,
+                ));
+            }
+        }
+
+        $this->db->closeTransaction();
+        return ! in_array(false, $results, true);
+    }
+
+    /**
+     * Remove a metadata
+     *
+     * @access public
+     * @param  integer $entity_id
+     * @param  string  $name
+     * @return bool
+     */
+    public function remove($entity_id, $name)
+    {
+        return $this->db->table($this->getTable())
+            ->eq($this->getEntityKey(), $entity_id)
+            ->eq('name', $name)
+            ->remove();
+    }
+}