MySQL: Dashboard.data column type changed to mediumtext (sql migration added), Fixes #1863

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 **Fixes**
 - [Issue #1857](https://github.com/grafana/grafana/issues/1857). /api/login/ping Fix for issue when behind reverse proxy and subpath
+- [Issue #1863](https://github.com/grafana/grafana/issues/1863). MySQL: Dashboard.data column type changed to mediumtext (sql migration added)
 
 # 2.0.2 (2015-04-22)
 

pkg/services/sqlstore/datasource_test.go

@@ -14,9 +14,9 @@ import (
 func InitTestDB(t *testing.T) {
 
 	t.Log("InitTestDB")
-	x, err := xorm.NewEngine(sqlutil.TestDB_Sqlite3.DriverName, sqlutil.TestDB_Sqlite3.ConnStr)
+	//x, err := xorm.NewEngine(sqlutil.TestDB_Sqlite3.DriverName, sqlutil.TestDB_Sqlite3.ConnStr)
 	//x, err := xorm.NewEngine(sqlutil.TestDB_Mysql.DriverName, sqlutil.TestDB_Mysql.ConnStr)
-	//x, err := xorm.NewEngine(sqlutil.TestDB_Postgres.DriverName, sqlutil.TestDB_Postgres.ConnStr)
+	x, err := xorm.NewEngine(sqlutil.TestDB_Postgres.DriverName, sqlutil.TestDB_Postgres.ConnStr)
 
 	if err != nil {
 		t.Fatalf("Failed to init in memory sqllite3 db %v", err)

pkg/services/sqlstore/migrations/dashboard_mig.go

@@ -86,4 +86,10 @@ func addDashboardMigration(mg *Migrator) {
 	}))
 
 	mg.AddMigration("drop table dashboard_v1", NewDropTableMigration("dashboard_v1"))
+
+	// change column type of dashboard.data
+	mg.AddMigration("alter dashboard.data to mediumtext v1", new(RawSqlMigration).
+		Sqlite("SELECT 0 WHERE 0;").
+		Postgres("SELECT 0;").
+		Mysql("ALTER TABLE dashboard MODIFY data MEDIUMTEXT;"))
 }

pkg/services/sqlstore/migrations/dashboard_snapshot_mig.go

@@ -48,4 +48,10 @@ func addDashboardSnapshotMigrations(mg *Migrator) {
 
 	mg.AddMigration("create dashboard_snapshot table v5 #2", NewAddTableMigration(snapshotV5))
 	addTableIndicesMigrations(mg, "v5", snapshotV5)
+
+	// ncrease data type
+	mg.AddMigration("alter dashboard_snapshot.data to mediumtext v1", new(RawSqlMigration).
+		Sqlite("SELECT 0 WHERE 0;").
+		Postgres("SELECT 0;").
+		Mysql("ALTER TABLE dashboard_snapshot.data MODIFY data MEDIUMTEXT;"))
 }

pkg/services/sqlstore/migrator/migrations.go

@@ -25,8 +25,9 @@ func (m *MigrationBase) GetCondition() MigrationCondition {
 type RawSqlMigration struct {
 	MigrationBase
 
-	sqlite string
-	mysql  string
+	sqlite   string
+	mysql    string
+	postgres string
 }
 
 func (m *RawSqlMigration) Sql(dialect Dialect) string {
@@ -35,6 +36,8 @@ func (m *RawSqlMigration) Sql(dialect Dialect) string {
 		return m.mysql
 	case SQLITE:
 		return m.sqlite
+	case POSTGRES:
+		return m.postgres
 	}
 
 	panic("db type not supported")
@@ -50,6 +53,11 @@ func (m *RawSqlMigration) Mysql(sql string) *RawSqlMigration {
 	return m
 }
 
+func (m *RawSqlMigration) Postgres(sql string) *RawSqlMigration {
+	m.postgres = sql
+	return m
+}
+
 type AddColumnMigration struct {
 	MigrationBase
 	tableName string