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Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails
I'm having a bit of a strange problem. I'm trying to add a foreign key to one table that references another, but it is failing for some reason. With my limited knowledge of MySQL, the only thing that could possibly be suspect is that there is a foreign key on a different table referencing the one I ...
How do you set the Content-Type header for an HttpClient request?
I'm trying to set the Content-Type header of an HttpClient object as required by an API I am calling.
14 Answers
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error: request for member '..' in '..' which is of non-class type
I have a class with two constructors, one that takes no arguments and one that takes one argument.
9 Answers
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Has anyone ever got a remote JMX JConsole to work?
It seems that I've never got this to work in the past. Currently, I KNOW it doesn't work.
20 Answers
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Parse a .py file, read the AST, modify it, then write back the modified source code
I want to programmatically edit python source code. Basically I want to read a .py file, generate the AST , and then write back the modified python source code (i.e. another .py file).
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Issue with adding common code as git submodule: “already exists in the index”
I'm new to git and would appreciate help with adding submodules.
I've received two projects sharing some common code. The shared code was just copied into the two projects. I created a separate git repo for the common code and removed it from the projects with the plan to add it as a git submodule...
How do I use Maven through a proxy?
I want to share my experience of using maven through a proxy.
17 Answers
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Setting element of array from Twig
How can I set member of an already existing array from Twig?
10 Answers
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Listening for variable changes in JavaScript
Is it possible to have an event in JS that fires when the value of a certain variable changes? JQuery is accepted.
21 Answe...