cakephp重复键值违反唯一约束 [英] cakephp duplicate key value violates unique constraint

问题描述

确定...我已设置我的postgres数据库填充和所有约束应用。 OS ...我跑蛋糕烘烤所有的表，开始测试。我收到此错误：

错误：SQLSTATE [23505]：唯一违规：7错误：重复的键值违反唯一约束fasciculos_pkey1DETAIL：Key

SQL查询：INSERT INTOxconv2。fasciculos（created，user_id，revista_id，volume发布，svol，snum，issate，scheme，reftype，cliente_id，output_packtype，modified）VALUES（'now（）'，4,144， ，'4'，'4'，'4'，'4'，'4'，'4'，1，'/ var / www'，'2013-03-25'）

pk（curr_val = 545）默认不是null和唯一约束，但是当我试图使用add.ctp添加新记录时，蛋糕不考虑为PK创建的序列的下一个值。似乎它刚刚开始...我认为这是缓存问题，但不确定。

some1有帮助吗？

ty

解决方案

• 我在SQL语句中看不到键7或545;那么这些值来自哪里？


• 创建的列以'now（）'作为 / strong>，而不是来自NOW（）函数的值。在你的PHP代码中填充正确的datetime（ date（'Ymd H：i：s'）通常会做到这一点）。

无论如何，如果你在一个循环中插入记录，或者只是多个具有相同模型的记录，不要忘了调用 create（） ，否则ID将是相同的。

Ok ... i have set my postgres database populated and all constraints applied. OS ... i ran cake bake all on all tables and start to test. I got this error:

Error: SQLSTATE[23505]: Unique violation: 7 ERROR: duplicate key value violates unique constraint "fasciculos_pkey1" DETAIL: Key (id)=(7) already exists.

SQL Query: INSERT INTO "xconv2"."fasciculos" ("created", "user_id", "revista_id", "volume", "issue", "svol", "snum", "issuedate", "scheme", "reftype", "cliente_id", "output_packtype", "modified") VALUES ('now()', 4, 144, '4', '4', '4', '4', '4', '4', '4', 1, '/var/www', '2013-03-25')

The pk (curr_val = 545) has indeed by default not null and unique constraints but when i tried to add new record using add.ctp, cake doesn't consider the next value of sequence created for the PK. Seems It just start over... I think this is cache problem, but not sure.

Can some1 help ?

ty

解决方案

A couple of things:

• I don't see a key 7, or 545 in the SQL statement; so where do these values come from?
• The created column gets filled with 'now()' as a string, not a value from the NOW() function. Fill it with the proper datetime in your PHP code (date('Y-m-d H:i:s') usually does the trick).

Anyway, if you are inserting records in a loop, or just more than one with the same model, don't forget to call create() on the model otherwise the ID will be the same.

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