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JPA: unidirectional many-to-one and cascading delete
...le as ON DELETE CASCADE. You'll need to invoke EntityManager.clear() after calling EntityManager.remove(parent) as the persistence context needs to be refreshed - the child entities are not supposed to exist in the persistence context after they've been deleted in the database.
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continue processing php after sending http response
My script is called by server. From server I'll receive ID_OF_MESSAGE and TEXT_OF_MESSAGE .
12 Answers
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Hibernate JPA Sequence (non-Id)
...stumbled upon this link
It seems that Hibernate/JPA isn't able to automatically create a value for your non-id-properties. The @GeneratedValue annotation is only used in conjunction with @Id to create auto-numbers.
The @GeneratedValue annotation just tells Hibernate that the database is generating...
Find html label associated with a given input
... refactor that just a little so that it builds the lookup the first time I call the method, but it should do the trick.
– Joel Coehoorn
Nov 12 '08 at 22:13
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What exactly is RESTful programming?
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An architectural style called REST (Representational State Transfer) advocates that web applications should use HTTP as it was originally envisioned. Lookups should use GET requests. PUT, POST, and DELETE requests should be used for mutation, creat...
Return JSON response from Flask view
...k 1.1.0, you can now directly return a python dict, and it will be automatically jsonify'd by Flask.
– Adrien Ball
Apr 14 at 14:48
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PHP - Modify current object in foreach loop
...erence in a foreach. I re-used the same variable name for a second foreach call - as I'd passed the first by reference, it kept modifying the last item in the array! Using an explicit index wouldn't have had this problem.
– Hippyjim
Jan 24 '14 at 10:03
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What is JSONP, and why was it created?
...at your page can handle.
For example, say the server expects a parameter called callback to enable its JSONP capabilities. Then your request would look like:
http://www.example.net/sample.aspx?callback=mycallback
Without JSONP, this might return some basic JavaScript object, like so:
{ foo: 'b...
How to get a string after a specific substring?
... s1, then use s1.find(s2) as opposed to index. If the return value of that call is -1, then s2 is not in s1.
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error: passing xxx as 'this' argument of xxx discards qualifiers
...e objects in the std::set are stored as const StudentT. So when you try to call getId() with the const object the compiler detects a problem, mainly you're calling a non-const member function on const object which is not allowed because non-const member functions make NO PROMISE not to modify the o...