modify project lang field to be varchar(3) (#544)

db/migrations/20230511122352_goteo_project_lang_size.php

@@ -0,0 +1,58 @@
+<?php
+
+use Goteo\Core\Model;
+
+/**
+ * Migration Task class.
+ */
+class GoteoProjectLangSize
+{
+  public function preUp()
+  {
+      // add the pre-migration code here
+  }
+
+  public function postUp()
+  {
+      // add the post-migration code here
+  }
+
+  public function preDown()
+  {
+        $sql = "
+            UPDATE goteo.project SET lang = LEFT(lang, 2);
+        ";
+
+        Model::query($sql);
+  }
+
+  public function postDown()
+  {
+      // add the post-migration code here
+  }
+
+  /**
+   * Return the SQL statements for the Up migration
+   *
+   * @return string The SQL string to execute for the Up migration.
+   */
+  public function getUpSQL()
+  {
+     return "
+        ALTER TABLE project MODIFY COLUMN lang VARCHAR(3) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT 'es' NULL;
+     ";
+  }
+
+  /**
+   * Return the SQL statements for the Down migration
+   *
+   * @return string The SQL string to execute for the Down migration.
+   */
+  public function getDownSQL()
+  {
+     return "
+        ALTER TABLE project MODIFY COLUMN lang VARCHAR(2) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT 'es' NULL;
+     ";
+  }
+
+}