插入具有外键约束的冲突

Question

I am building an API with OrmLite from ServiceStack .

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When populating it with test data I get the following error:

The INSERT statement conflicted with the FOREIGN KEY constraint "FK_Order_Customer_CustomerId". The conflict occurred in database "C:\\USERS\\ALECTAYLOR\\SOCIALBOOTSTRAPAPI\\SRC\\SOCIALBOOTSTRAPAPI\\APP_DATA\\USERAUTH.MDF", table "dbo.Customer", column 'Id'. The statement has been terminated.

Code (lines 213-236 + CreateOrders function): http://pastebin.com/Njhz7sD2

Profiler output: http://fiddle.jshell.net/cTen2/1/show/

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Thanks for any advice on how to rectify this issue.

Answer 1

FOREIGN KEY constraint generally means that you are trying to insert a value into a table that doesn't exist in the reference table. Take a look at MSDN article on Foreign Keys for more info about what they are and how they work. You need to have a look at the actual structure of the data tables order and customer.

I would guess that you are inserting a customerId into the orders table that doesn't exist in the customers table.

Answer 2

since this is the insert that's failing, the only logical explanation is that customer number 1 doesn't exist. I saw that you insert 3 customers a few lines before. Maybe the transaction was not committed between the moment the customers were inserted and the order is inserted.

INSERT INTO "Order" ("CustomerId", "ShopId", "ShippingAddress", "OrderDate", "RequiredDate", "ShippedDate", "Total") VALUES (1, 0, '{line1:440 Crescent St, line2:South Melbourne, postCode:7416, city:Melbourne, country:Australia}', '20120430 07:43:18.686', NULL, NULL, 0);

Try to commit the insert after you insert the clients and before you insert the orders

Answer 3

Alright, got it to work.

Needed to set the ShopId of Order and orderId of the orderDetails List .

http://pastebin.com/TbrW150T