fix(be): migrations for mysql and postgres

db/sql/migration.go

@@ -14,6 +14,8 @@ var (
 	dateTimeTypeRE = regexp.MustCompile(`(?i)\bdatetime\b`)
 	tinyintRE = regexp.MustCompile(`(?i)\btinyint\b`)
 	longtextRE = regexp.MustCompile(`(?i)\blongtext\b`)
+	ifExistsRE = regexp.MustCompile(`(?i)\bif exists\b`)
+	dropForeignKey = regexp.MustCompile(`(?i)\bdrop foreign key\b`)
 )
 
 // prepareMigration converts migration SQLite-query to current dialect.
@@ -22,12 +24,14 @@ func (d *SqlDb) prepareMigration(query string) string {
 	switch d.sql.Dialect.(type) {
 	case gorp.MySQLDialect:
 		query = autoIncrementRE.ReplaceAllString(query, "auto_increment")
+		query = ifExistsRE.ReplaceAllString(query, "")
 	case gorp.PostgresDialect:
 		query = serialRE.ReplaceAllString(query, "serial primary key")
 		query = identifierQuoteRE.ReplaceAllString(query, "\"")
 		query = dateTimeTypeRE.ReplaceAllString(query, "timestamp")
 		query = tinyintRE.ReplaceAllString(query, "smallint")
 		query = longtextRE.ReplaceAllString(query, "text")
+		query = dropForeignKey.ReplaceAllString(query, "drop constraint")
 	}
 	return query
 }

db/sql/migrations/v2.7.8.sql

@@ -1,3 +1,7 @@
+ALTER TABLE project__inventory DROP FOREIGN KEY IF EXISTS project__inventory_ibfk_2;
+
 alter table `project__inventory` drop column `key_id`;
 
+ALTER TABLE project__template DROP FOREIGN KEY IF EXISTS project__template_ibfk_2;
+
 alter table `project__template` drop column `ssh_key_id`;

util/config.go

@@ -48,7 +48,7 @@ type ldapMappings struct {
 type ConfigType struct {
 	MySQL  DbConfig `json:"mysql"`
 	BoltDb DbConfig `json:"bolt"`
-	Postgres DbConfig `json:"pgsql"`
+	Postgres DbConfig `json:"postgres"`
 
 	Dialect DbDriver `json:"dialect"`
 
@@ -238,7 +238,7 @@ func (d *DbConfig) GetConnectionString(includeDbName bool) (connectionString str
 				d.DbName)
 		} else {
 			connectionString = fmt.Sprintf(
-				"postgres://%s:%s@%s/",
+				"postgres://%s:%s@%s",
 				d.Username,
 				d.Password,
 				d.Hostname)