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Always returns True, to indicate constraint checks need to be re-enabled. uSET foreign_key_checks=0(R%R(RT(R&((sk/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/backends/mysql/base.pytdisable_constraint_checking#scCs;t|j|_}z|jƒjdƒWd||_XdS(uM Re-enable foreign key checks after they have been disabled. uSET foreign_key_checks=1N(tFalsetneeds_rollbackR%R((R&Rl((sk/var/www/html/phendo-backend/phendo_python/env/lib/python2.7/site-packages/django/db/backends/mysql/base.pytenable_constraint_checking+sc Cs|jƒ}|dkr-|jj|ƒ}nxÎ|D]Æ}|jj||ƒ}|s[q4n|jj||ƒ}x‡|D]\}}}|jd||||||||fƒxD|jƒD]6} tj d|| d||| d||fƒ‚q¼WqwWq4WdS(u¶ Checks each table name in `table_names` for rows with invalid foreign key references. This method is intended to be used in conjunction with `disable_constraint_checking()` and `enable_constraint_checking()`, to determine if rows with invalid references were entered while constraint checks were off. 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