add db migration mechanism

db/create-settings.sql

@@ -1,9 +0,0 @@
-INSERT INTO setting_groups (Description) VALUES ("guestbook");
-INSERT INTO setting_groups (Description) VALUES ("user");
-
-INSERT INTO setting_data_types (Description) VALUES ("alphanumeric")
-INSERT INTO setting_data_types (Description) VALUES ("integer")
-INSERT INTO setting_data_types (Description) VALUES ("datetime")
-
-INSERT INTO settings (Description, Constrained, DataType, SettingGroup)
-VALUES ("Local Timezone", 0, 1, 1);

internal/models/settings.go

@@ -40,6 +40,7 @@ const (
 	SETTING_TYPE_INTEGER = "integer"
 	SETTING_TYPE_STRING  = "alphanumeric"
 	SETTING_TYPE_DATE    = "datetime"
+	SETTING_TYPE_BOOL    = "boolean"
 )
 
 type Setting struct {
@@ -88,6 +89,8 @@ func (s *Setting) Validate(value string) bool {
 		return s.validateAlphanum(value)
 	case SETTING_TYPE_DATE:
 		return s.validateDatetime(value)
+	case SETTING_TYPE_BOOL:
+		return s.validateBool(value)
 	}
 	return false
 }
@@ -152,3 +155,11 @@ func (s *Setting) validateDatetime(value string) bool {
 func (s *Setting) validateAlphanum(value string) bool {
 	return len(value) >= 0
 }
+
+func (s *Setting) validateBool(value string) bool {
+	_, err := strconv.ParseBool(value)
+	if err != nil {
+		return false
+	}
+	return true
+}

migrations/000001_create_users_table.down.sql

@@ -0,0 +1,2 @@
+DROP TABLE users;
+DROP TABLE sessions;

migrations/000001_create_users_table.up.sql

@@ -0,0 +1,16 @@
+CREATE TABLE users (
+    Id integer primary key autoincrement,
+    ShortId integer UNIQUE NOT NULL,
+    Username varchar(32) NOT NULL,
+    Email varchar(256) UNIQUE NOT NULL,
+    Deleted datetime,
+    IsBanned boolean NOT NULL DEFAULT FALSE,
+    HashedPassword char(60) NOT NULL,
+    Created datetime NOT NULL
+);
+
+CREATE TABLE sessions (
+    token CHAR(43) primary key,
+    data BLOB NOT NULL,
+    expiry TEXT NOT NULL
+);

migrations/000002_create_websites_table.down.sql

@@ -0,0 +1,3 @@
+DROP TABLE IF EXISTS guestbook_comments;
+DROP TABLE IF EXISTS guestbooks;
+DROP TABLE IF EXISTS websites;

migrations/000002_create_websites_table.up.sql

@@ -1,14 +1,3 @@
-CREATE TABLE users (
-    Id integer primary key autoincrement,
-    ShortId integer UNIQUE NOT NULL,
-    Username varchar(32) NOT NULL,
-    Email varchar(256) UNIQUE NOT NULL,
-    Deleted datetime,
-    IsBanned boolean NOT NULL DEFAULT FALSE,
-    HashedPassword char(60) NOT NULL,
-    Created datetime NOT NULL
-);
-
 CREATE TABLE websites (
     Id integer primary key autoincrement,
     ShortId integer UNIQUE NOT NULL,
@@ -61,9 +50,3 @@ CREATE TABLE guestbook_comments (
         ON DELETE RESTRICT
         ON UPDATE RESTRICT
 );
-
-CREATE TABLE sessions (
-    token CHAR(43) primary key,
-    data BLOB NOT NULL,
-    expiry TEXT NOT NULL
-);

migrations/000003_create_settings_tables.down.sql

@@ -0,0 +1,6 @@
+DROP TABLE IF EXISTS guestbook_settings;
+DROP TABLE IF EXISTS user_settings;
+DROP TABLE IF EXISTS allowed_setting_values;
+DROP TABLE IF EXISTS settings;
+DROP TABLE IF EXISTS setting_data_types;
+DROP TABLE IF EXISTS setting_groups;

migrations/000003_create_settings_tables.up.sql

@@ -68,9 +68,3 @@ CREATE TABLE guestbook_settings (
         ON UPDATE RESTRICT
 );
 
-INSERT INTO setting_groups (Description) VALUES ('guestbook');
-INSERT INTO setting_groups (Description) VALUES ('user');
-
-INSERT INTO setting_data_types (Description) VALUES ('alphanumeric');
-INSERT INTO setting_data_types (Description) VALUES ('integer');
-INSERT INTO setting_data_types (Description) VALUES ('datetime');

migrations/000004_insert_settings_info.down.sql

@@ -0,0 +1,20 @@
+DELETE FROM settings WHERE Description='remote_enabled';
+DELETE FROM settings WHERE Description='is_visible';
+DELETE FROM settings WHERE Description='reenable_comments';
+DELETE FROM settings WHERE Description='commenting_enabled';
+DELETE FROM settings WHERE Description='local_timezone';
+
+DELETE FROM setting_data_types WHERE Description='boolean';
+DELETE FROM setting_data_types WHERE Description='datetime';
+DELETE FROM setting_data_types WHERE Description='integer';
+DELETE FROM setting_data_types WHERE Description='alphanumeric';
+
+DELETE FROM setting_groups WHERE Description='user';
+DELETE FROM setting_groups WHERE Description='guestbook';
+
+DELETE FROM allowed_setting_values WHERE Caption='commenting_enabled';
+DELETE FROM allowed_setting_values WHERE Caption='commenting_disabled';
+DELETE FROM allowed_setting_values WHERE Caption='guestbook_visible';
+DELETE FROM allowed_setting_values WHERE Caption='guestbook_invisible';
+DELETE FROM allowed_setting_values WHERE Caption='remote_enabled';
+DELETE FROM allowed_setting_values WHERE Caption='remote_disabled';

migrations/000004_insert_settings_info.up.sql

@@ -0,0 +1,40 @@
+INSERT INTO setting_groups (Description) VALUES ('guestbook');
+INSERT INTO setting_groups (Description) VALUES ('user');
+
+INSERT INTO setting_data_types (Description) VALUES ('alphanumeric');
+INSERT INTO setting_data_types (Description) VALUES ('integer');
+INSERT INTO setting_data_types (Description) VALUES ('datetime');
+INSERT INTO setting_data_types (Description) VALUES ('boolean');
+
+INSERT INTO settings (Description, Constrained, DataType, SettingGroup)
+    SELECT 'local_timezone', 0, t.id, g.id FROM setting_data_types as t INNER JOIN setting_groups AS g WHERE g.Description='user' AND t.Description='alphanumeric';
+
+INSERT INTO settings (Description, Constrained, DataType, SettingGroup)
+    SELECT 'commenting_enabled', 1, t.id, g.id FROM setting_data_types as t INNER JOIN setting_groups AS g WHERE g.Description='guestbook' AND t.Description='boolean';
+
+INSERT INTO allowed_setting_values (SettingId, ItemValue, Caption)
+    SELECT settings.id, 'true', 'commenting_enabled' FROM settings WHERE settings.Description='commenting_enabled';
+
+INSERT INTO allowed_setting_values (SettingId, ItemValue, Caption)
+    SELECT settings.id, 'false', 'commenting_disabled' FROM settings WHERE settings.Description='commenting_enabled';
+
+INSERT INTO settings (Description, Constrained, DataType, SettingGroup)
+    SELECT 'reenable_comments', 0, t.id, g.id FROM setting_data_types as t INNER JOIN setting_groups as g WHERE g.Description='guestbook' AND t.Description='alphanumeric';
+
+INSERT INTO settings (Description, Constrained, DataType, SettingGroup)
+    SELECT 'is_visible', 1, t.id, g.id FROM setting_data_types as t INNER JOIN setting_groups as g WHERE g.Description='guestbook' AND t.Description='boolean';
+
+INSERT INTO allowed_setting_values (SettingId, ItemValue, Caption)
+    SELECT settings.id, 'true', 'guestbook_visible' FROM settings WHERE settings.Description='is_visible';
+
+INSERT INTO allowed_setting_values (SettingId, ItemValue, Caption)
+    SELECT settings.id, 'false', 'guestbook_invisible' FROM settings WHERE settings.Description='is_visible';
+
+INSERT INTO settings (Description, Constrained, DataType, SettingGroup)
+    SELECT 'remote_enabled', 1, t.id, g.id FROM setting_data_types as t INNER JOIN setting_groups as g WHERE g.Description='guestbook' AND t.Description='boolean';
+
+INSERT INTO allowed_setting_values (SettingId, ItemValue, Caption)
+    SELECT settings.id, 'true', 'remote_enabled' FROM settings WHERE settings.Description='remote_enabled';
+
+INSERT INTO allowed_setting_values (SettingId, ItemValue, Caption)
+    SELECT settings.id, 'false', 'remote_disabled' FROM settings WHERE settings.Description='remote_enabled';