3 files changed, 70 insertions, 3 deletions
diff --git a/app/Schema/Mysql.php b/app/Schema/Mysql.php
index 934b063f..82ccb8c8 100644
--- a/app/Schema/Mysql.php
+++ b/app/Schema/Mysql.php
@@ -6,7 +6,30 @@ use PDO;
 use Kanboard\Core\Security\Token;
 use Kanboard\Core\Security\Role;
 
-const VERSION = 110;
+const VERSION = 111;
+
+function version_111(PDO $pdo)
+{
+    $pdo->exec("
+        CREATE TABLE tags (
+            id INT NOT NULL AUTO_INCREMENT,
+            name VARCHAR(255) NOT NULL,
+            project_id INT NOT NULL,
+            UNIQUE(project_id, name),
+            PRIMARY KEY(id)
+        ) ENGINE=InnoDB CHARSET=utf8
+    ");
+
+    $pdo->exec("
+        CREATE TABLE task_has_tags (
+            task_id INT NOT NULL,
+            tag_id INT NOT NULL,
+            FOREIGN KEY(task_id) REFERENCES tasks(id) ON DELETE CASCADE,
+            FOREIGN KEY(tag_id) REFERENCES tags(id) ON DELETE CASCADE,
+            UNIQUE(tag_id, task_id)
+        ) ENGINE=InnoDB CHARSET=utf8
+    ");
+}
 
 function version_110(PDO $pdo)
 {
diff --git a/app/Schema/Postgres.php b/app/Schema/Postgres.php
index 3ef49498..229cbd25 100644
--- a/app/Schema/Postgres.php
+++ b/app/Schema/Postgres.php
@@ -6,7 +6,29 @@ use PDO;
 use Kanboard\Core\Security\Token;
 use Kanboard\Core\Security\Role;
 
-const VERSION = 89;
+const VERSION = 90;
+
+function version_90(PDO $pdo)
+{
+    $pdo->exec("
+        CREATE TABLE tags (
+            id SERIAL PRIMARY KEY,
+            name VARCHAR(255) NOT NULL,
+            project_id INTEGER NOT NULL,
+            UNIQUE(project_id, name)
+        )
+    ");
+
+    $pdo->exec("
+        CREATE TABLE task_has_tags (
+            task_id INTEGER NOT NULL,
+            tag_id INTEGER NOT NULL,
+            FOREIGN KEY(task_id) REFERENCES tasks(id) ON DELETE CASCADE,
+            FOREIGN KEY(tag_id) REFERENCES tags(id) ON DELETE CASCADE,
+            UNIQUE(tag_id, task_id)
+        )
+    ");
+}
 
 function version_89(PDO $pdo)
 {
diff --git a/app/Schema/Sqlite.php b/app/Schema/Sqlite.php
index 9ded7ed9..dac348d4 100644
--- a/app/Schema/Sqlite.php
+++ b/app/Schema/Sqlite.php
@@ -6,7 +6,29 @@ use Kanboard\Core\Security\Token;
 use Kanboard\Core\Security\Role;
 use PDO;
 
-const VERSION = 101;
+const VERSION = 102;
+
+function version_102(PDO $pdo)
+{
+    $pdo->exec("
+        CREATE TABLE tags (
+            id INTEGER PRIMARY KEY,
+            name TEXT NOT NULL,
+            project_id INTEGER NOT NULL,
+            UNIQUE(project_id, name)
+        )
+    ");
+
+    $pdo->exec("
+        CREATE TABLE task_has_tags (
+            task_id INTEGER NOT NULL,
+            tag_id INTEGER NOT NULL,
+            FOREIGN KEY(task_id) REFERENCES tasks(id) ON DELETE CASCADE,
+            FOREIGN KEY(tag_id) REFERENCES tags(id) ON DELETE CASCADE,
+            UNIQUE(tag_id, task_id)
+        )
+    ");
+}
 
 function version_101(PDO $pdo)
 {