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SQLAlchemy: cascade delete
I must be missing something trivial with SQLAlchemy's cascade options because I cannot get a simple cascade delete to operate correctly -- if a parent element is a deleted, the children persist, with null foreign keys.
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Extract value of attribute node via XPath
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//Parent[@id='1']/Children/child/@name
Your original child[@name] means an element child which has an attribute name. You want child/@name.
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How to search by key=>value in a multidimensional array in PHP
...s there any fast way to get all subarrays where a key value pair was found in a multidimensional array? I can't say how deep the array will be.
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Cannot delete or update a parent row: a foreign key constraint fails
When doing:
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How to run an EXE file in PowerShell with parameters with spaces and quotes
How do you run the following command in PowerShell?
19 Answers
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How to set space between listView Items in Android
I tried to use marginBottom on the listView to make space between listView Item, but still the items are attached together.
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Send message to specific client with socket.io and node.js
I'm working with socket.io and node.js and until now it seems pretty good, but I don't know how to send a message from the server to an specific client, something like this:
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Jackson and generic type reference
...wn problem with Java type erasure: T is just a type variable, and you must indicate actual class, usually as Class argument. Without such information, best that can be done is to use bounds; and plain T is roughly same as 'T extends Object'. And Jackson will then bind JSON Objects as Maps.
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How can I get a channel ID from YouTube?
I'm trying to retrive the data from my channel using the YouTube Data API V3 .
For that I need my channel ID.
I've tried to find my channel ID from my YouTube account, and I failed in every single way.
If anyone have a single tip for me, I would be incredible glad.
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How do I search for an object by its ObjectId in the mongo console?
I've found this question answered for C# and Perl, but not in the native interface. I thought this would work:
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