3 files changed, 81 insertions, 3 deletions
diff --git a/app/Schema/Mysql.php b/app/Schema/Mysql.php
index 52a73fb1..5a451c77 100644
--- a/app/Schema/Mysql.php
+++ b/app/Schema/Mysql.php
@@ -5,7 +5,29 @@ namespace Schema;
 use PDO;
 use Kanboard\Core\Security\Token;
 
-const VERSION = 94;
+const VERSION = 95;
+
+function version_95(PDO $pdo)
+{
+    $pdo->exec("
+        CREATE TABLE groups (
+            id INT NOT NULL AUTO_INCREMENT,
+            external_id VARCHAR(255) DEFAULT '',
+            name VARCHAR(100) NOT NULL UNIQUE,
+            PRIMARY KEY(id)
+        ) ENGINE=InnoDB CHARSET=utf8
+    ");
+
+    $pdo->exec("
+        CREATE TABLE group_has_users (
+            group_id INT NOT NULL,
+            user_id INT NOT NULL,
+            FOREIGN KEY(group_id) REFERENCES groups(id) ON DELETE CASCADE,
+            FOREIGN KEY(user_id) REFERENCES users(id) ON DELETE CASCADE,
+            UNIQUE(group_id, user_id)
+        ) ENGINE=InnoDB CHARSET=utf8
+    ");
+}
 
 function version_94(PDO $pdo)
 {
diff --git a/app/Schema/Postgres.php b/app/Schema/Postgres.php
index 5cd1a7d0..a3887cfb 100644
--- a/app/Schema/Postgres.php
+++ b/app/Schema/Postgres.php
@@ -5,7 +5,28 @@ namespace Schema;
 use PDO;
 use Kanboard\Core\Security\Token;
 
-const VERSION = 74;
+const VERSION = 75;
+
+function version_75(PDO $pdo)
+{
+    $pdo->exec("
+        CREATE TABLE groups (
+            id SERIAL PRIMARY KEY,
+            external_id VARCHAR(255) DEFAULT '',
+            name VARCHAR(100) NOT NULL UNIQUE
+        )
+    ");
+
+    $pdo->exec("
+        CREATE TABLE group_has_users (
+            group_id INTEGER NOT NULL,
+            user_id INTEGER NOT NULL,
+            FOREIGN KEY(group_id) REFERENCES groups(id) ON DELETE CASCADE,
+            FOREIGN KEY(user_id) REFERENCES users(id) ON DELETE CASCADE,
+            UNIQUE(group_id, user_id)
+        )
+    ");
+}
 
 function version_74(PDO $pdo)
 {
diff --git a/app/Schema/Sqlite.php b/app/Schema/Sqlite.php
index fa26b158..f0510cff 100644
--- a/app/Schema/Sqlite.php
+++ b/app/Schema/Sqlite.php
@@ -5,7 +5,42 @@ namespace Schema;
 use Kanboard\Core\Security\Token;
 use PDO;
 
-const VERSION = 88;
+const VERSION = 89;
+
+function version_90(PDO $pdo)
+{
+    $pdo->exec("
+        CREATE TABLE project_has_groups (
+            group_id INTEGER NOT NULL,
+            project_id INTEGER NOT NULL,
+            role TEXT NOT NULL,
+            FOREIGN KEY(group_id) REFERENCES groups(id) ON DELETE CASCADE,
+            FOREIGN KEY(project_id) REFERENCES projects(id) ON DELETE CASCADE,
+            UNIQUE(group_id, project_id)
+        )
+    ");
+}
+
+function version_89(PDO $pdo)
+{
+    $pdo->exec("
+        CREATE TABLE groups (
+            id INTEGER PRIMARY KEY,
+            external_id TEXT DEFAULT '',
+            name TEXT NOCASE NOT NULL UNIQUE
+        )
+    ");
+
+    $pdo->exec("
+        CREATE TABLE group_has_users (
+            group_id INTEGER NOT NULL,
+            user_id INTEGER NOT NULL,
+            FOREIGN KEY(group_id) REFERENCES groups(id) ON DELETE CASCADE,
+            FOREIGN KEY(user_id) REFERENCES users(id) ON DELETE CASCADE,
+            UNIQUE(group_id, user_id)
+        )
+    ");
+}
 
 function version_88(PDO $pdo)
 {