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Prevent extra foreign keys from being created and fix we can't delete from Zones. Must be done manually

This commit is contained in:
Isaac Connor 2020-10-28 15:01:14 -04:00
parent 9a9f80c15c
commit a35c143094
1 changed files with 66 additions and 12 deletions
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78
db/zm_update-1.35.11.sql
View File

@ -1,20 +1,74 @@
/* Change Id type to BIGINT. */ /* Change Id type to BIGINT. */
SELECT 'Updating Events.Id to BIGINT';
ALTER TABLE Events MODIFY Id bigint unsigned NOT NULL auto_increment; ALTER TABLE Events MODIFY Id bigint unsigned NOT NULL auto_increment;
/* Add FOREIGN KEYS After deleting lost records */ /* Add FOREIGN KEYS After deleting lost records */
DELETE FROM Frames WHERE EventId NOT IN (SELECT Id FROM Events); SELECT 'Adding foreign key for EventId to Frames';
ALTER TABLE Frames ADD FOREIGN KEY (EventId) REFERENCES Events (Id) ON DELETE CASCADE; set @exist := (select count(*) FROM information_schema.key_column_usage where table_name='Frames' and column_name='EventId' and referenced_table_name='Events' and referenced_column_name='Id');
set @sqlstmt := if( @exist > 1, "SELECT 'You have more than 1 FOREIGN KEY. Please do manual cleanup'", "SELECT 'Ok'");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
/* Add FOREIGN KEYS After deleting lost records */ set @sqlstmt := if( @exist > 0, "SELECT 'FOREIGN KEY for EventId in Frames already exists'", "DELETE FROM Frames WHERE EventId NOT IN (SELECT Id FROM Events)");
DELETE FROM Stats WHERE EventId NOT IN (SELECT Id FROM Events); PREPARE stmt FROM @sqlstmt;
ALTER TABLE Stats ADD FOREIGN KEY (EventId) REFERENCES Events (Id) ON DELETE CASCADE; EXECUTE stmt;
DELETE FROM Stats WHERE MonitorId NOT IN (SELECT Id FROM Monitors); set @sqlstmt := if( @exist > 0, "SELECT 'Ok'", "ALTER TABLE Frames ADD FOREIGN KEY (EventId) REFERENCES Events (Id) ON DELETE CASCADE");
ALTER TABLE Stats ADD FOREIGN KEY (`MonitorId`) REFERENCES `Monitors` (`Id`) ON DELETE CASCADE; PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
DELETE FROM Stats WHERE ZoneId NOT IN (SELECT Id FROM Zones);
ALTER TABLE Stats ADD FOREIGN KEY (`ZoneId`) REFERENCES `Zones` (`Id`) ON DELETE CASCADE;
/* Add FOREIGN KEYS After deleting lost records */ SELECT 'Adding foreign key for EventId to Stats';
DELETE FROM Zones WHERE MonitorId NOT IN (SELECT Id FROM Monitors); set @exist := (select count(*) FROM information_schema.key_column_usage where table_name='Stats' and column_name='EventId' and referenced_table_name='Events' and referenced_column_name='Id');
ALTER TABLE Zones ADD FOREIGN KEY (`MonitorId`) REFERENCES `Monitors` (`Id`) ON DELETE CASCADE; set @sqlstmt := if( @exist > 1, "SELECT 'You have more than 1 FOREIGN KEY. Please do manual cleanup'", "SELECT 'Ok'");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
set @sqlstmt := if( @exist > 0, "SELECT 'FOREIGN KEY for EventId in Stats already exists'", "DELETE FROM Stats WHERE EventId NOT IN (SELECT Id FROM Events);");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
set @sqlstmt := if( @exist > 0, "SELECT 'Ok'", "ALTER TABLE Stats ADD FOREIGN KEY (EventId) REFERENCES Events (Id) ON DELETE CASCADE");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
SELECT 'Adding foreign key for MonitorId to Stats';
set @exist := (select count(*) FROM information_schema.key_column_usage where table_name='Stats' and column_name='MonitorId' and referenced_table_name='Monitors' and referenced_column_name='Id');
set @sqlstmt := if( @exist > 1, "SELECT 'You have more than 1 FOREIGN KEY. Please do manual cleanup'", "SELECT 'Ok'");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
set @sqlstmt := if( @exist > 0, "SELECT 'FOREIGN KEY for MonitorId in Stats already exists'", "DELETE FROM Stats WHERE MonitorId NOT IN (SELECT Id FROM Monitors);");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
set @sqlstmt := if( @exist > 0, "SELECT 'Ok'", "ALTER TABLE Stats ADD FOREIGN KEY (MonitorId) REFERENCES Monitors (Id) ON DELETE CASCADE");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
SELECT 'Adding foreign key for ZoneId to Stats';
set @exist := (select count(*) FROM information_schema.key_column_usage where table_name='Stats' and column_name='ZoneId' and referenced_table_name='Zones' and referenced_column_name='Id');
set @sqlstmt := if( @exist > 1, "SELECT 'You have more than 1 FOREIGN KEY. Please do manual cleanup'", "SELECT 'Ok'");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
set @sqlstmt := if( @exist > 0, "SELECT 'FOREIGN KEY for ZoneId in Stats already exists'", "DELETE FROM Stats WHERE ZoneId NOT IN (SELECT Id FROM Zones);");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
set @sqlstmt := if( @exist > 0, "SELECT 'Ok'", "ALTER TABLE Stats ADD FOREIGN KEY (ZoneId) REFERENCES Zones (Id) ON DELETE CASCADE");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
SELECT 'Adding foreign key for MonitorId to Zones';
set @exist := (select count(*) FROM information_schema.key_column_usage where table_name='Zones' and column_name='MonitorId' and referenced_table_name='Monitors' and referenced_column_name='Id');
set @sqlstmt := if( @exist > 1, "SELECT 'You have more than 1 FOREIGN KEY. Please do manual cleanup'", "SELECT 'Ok'");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;
set @sqlstmt := if( @exist > 0, "SELECT 'FOREIGN KEY for MonitorId in Zones already exists'", "SELECT 'FOREIGN KEY for MonitorId in Zones does not already exist'");
set @badzones := (select count(*) FROM Zones WHERE MonitorId NOT IN (SELECT Id FROM Monitors));
set @sqlstmt := if ( @badzones > 0, "SELECT 'You have Zones with no Monitor record in the Monitors table. Please delete them manually'", "ALTER TABLE Zones ADD FOREIGN KEY (MonitorId) REFERENCES Monitors (Id)");
PREPARE stmt FROM @sqlstmt;
EXECUTE stmt;