Remove default swimlane

app/Schema/Migration.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Schema;
+
+use PDO;
+
+function migrate_default_swimlane(PDO $pdo)
+{
+    $projects = get_all_projects($pdo);
+
+    foreach ($projects as $project) {
+
+        // Create new default swimlane
+        $rq = $pdo->prepare('INSERT INTO swimlanes (project_id, name, is_active, position) VALUES (?, ?, ?, ?)');
+        $rq->execute(array(
+            $project['id'],
+            $project['default_swimlane'],
+            (int) $project['show_default_swimlane'],
+            $project['show_default_swimlane'] == 1 ? 1 : 0,
+        ));
+
+        $swimlaneId = get_last_insert_id($pdo);
+
+        // Reorder swimlanes if the default one was active
+        if ($project['show_default_swimlane']) {
+            $rq = $pdo->prepare("UPDATE swimlanes SET position=position+1 WHERE project_id=? AND is_active='1' AND id!=?");
+            $rq->execute(array(
+                $project['id'],
+                $swimlaneId,
+            ));
+        }
+
+        // Move all tasks to new swimlane
+        $rq = $pdo->prepare("UPDATE tasks SET swimlane_id=? WHERE swimlane_id='0' AND project_id=?");
+        $rq->execute(array(
+            $swimlaneId,
+            $project['id'],
+        ));
+
+        // Migrate automatic actions
+        $rq = $pdo->prepare("UPDATE action_has_params SET value=? WHERE id IN (SELECT action_has_params.id FROM action_has_params LEFT JOIN actions ON actions.id=action_has_params.action_id WHERE project_id=? AND name='swimlane_id' AND value='0')");
+        $rq->execute(array($swimlaneId, $project['id']));
+    }
+}
+
+function get_all_projects(PDO $pdo)
+{
+    $rq = $pdo->prepare('SELECT * FROM projects');
+    $rq->execute();
+    return $rq->fetchAll(PDO::FETCH_ASSOC);
+}
+
+function get_last_insert_id(PDO $pdo)
+{
+    if (DB_DRIVER === 'postgres') {
+        $rq = $pdo->prepare('SELECT LASTVAL()');
+        $rq->execute();
+        return $rq->fetchColumn();
+    }
+
+    return $pdo->lastInsertId();
+}
+

app/Schema/Mysql.php

@@ -2,11 +2,23 @@
 
 namespace Schema;
 
+require_once __DIR__.'/Migration.php';
+
 use PDO;
 use Kanboard\Core\Security\Token;
 use Kanboard\Core\Security\Role;
 
-const VERSION = 121;
+const VERSION = 122;
+
+function version_122(PDO $pdo)
+{
+    migrate_default_swimlane($pdo);
+
+    $pdo->exec('ALTER TABLE `projects` DROP COLUMN `default_swimlane`');
+    $pdo->exec('ALTER TABLE `projects` DROP COLUMN `show_default_swimlane`');
+    $pdo->exec('ALTER TABLE `tasks` MODIFY `swimlane_id` INT(11) NOT NULL;');
+    $pdo->exec('ALTER TABLE tasks ADD CONSTRAINT tasks_swimlane_ibfk_1 FOREIGN KEY (swimlane_id) REFERENCES swimlanes(id) ON DELETE CASCADE');
+}
 
 function version_121(PDO $pdo)
 {

app/Schema/Postgres.php

@@ -2,11 +2,24 @@
 
 namespace Schema;
 
+require_once __DIR__.'/Migration.php';
+
 use PDO;
 use Kanboard\Core\Security\Token;
 use Kanboard\Core\Security\Role;
 
-const VERSION = 100;
+const VERSION = 101;
+
+function version_101(PDO $pdo)
+{
+    migrate_default_swimlane($pdo);
+
+    $pdo->exec('ALTER TABLE "projects" DROP COLUMN "default_swimlane"');
+    $pdo->exec('ALTER TABLE "projects" DROP COLUMN "show_default_swimlane"');
+    $pdo->exec('ALTER TABLE "tasks" ALTER COLUMN "swimlane_id" SET NOT NULL');
+    $pdo->exec('ALTER TABLE "tasks" ALTER COLUMN "swimlane_id" DROP DEFAULT');
+    $pdo->exec('ALTER TABLE "tasks" ADD FOREIGN KEY (swimlane_id) REFERENCES swimlanes ON DELETE CASCADE');
+}
 
 function version_100(PDO $pdo)
 {

app/Schema/Sqlite.php

@@ -2,11 +2,18 @@
 
 namespace Schema;
 
+require_once __DIR__.'/Migration.php';
+
 use Kanboard\Core\Security\Token;
 use Kanboard\Core\Security\Role;
 use PDO;
 
-const VERSION = 111;
+const VERSION = 112;
+
+function version_112(PDO $pdo)
+{
+    migrate_default_swimlane($pdo);
+}
 
 function version_111(PDO $pdo)
 {