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Find unique rows in numpy.array
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Note that if you want unique rows ignoring order of values in the row, you can sort the original array in the columns direct first: original_array.sort(axis=1)
– mangecoeur
Mar 2 at 11:59
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ModelState.AddModelError - How can I add an error that isn't for a property?
I am checking my database in Create(FooViewModel fvm){...} to see if the fvm.prop1 and fvm.prop2 already exist in that combination; if so, I want to add an error to the modelstate, then return the whole view. I tried:
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Are static methods inherited in Java?
I was reading A Programmer’s Guide to
Java™ SCJP Certification by Khalid Mughal.
14 Answers
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How do I make a column unique and index it in a Ruby on Rails migration?
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add_index :table_name, [:column_name_a, :column_name_b], unique: true
If you get "index name... is too long", you can add name: "whatever" to the add_index method to make the name shorter.
For fine-grained control, there's a "execute" method that executes straight SQL.
That's it!
If you are...
Converting an int to std::string
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std::to_string() does not work in MinGW, if anyone cares.
– Archie
Nov 9 '15 at 8:55
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How do I fix certificate errors when running wget on an HTTPS URL in Cygwin?
... solution after all.
First, you need to install the cygwin package ca-certificates via Cygwin's setup.exe to get the certificates.
Do NOT use curl or similar hacks to download certificates (as a neighboring answer advices) because that's fundamentally insecure and may compromise the system.
Seco...
What is the Gradle artifact dependency graph command?
... one that everyone else depends on) and not in the main project...not sure if that is bad or good at this point.
– Dean Hiller
Sep 5 '12 at 21:15
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Merge two (or more) lists into one, in C# .NET
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Assuming you want a list containing all of the products for the specified category-Ids, you can treat your query as a projection followed by a flattening operation. There's a LINQ operator that does that: SelectMany.
// implicitly List<Product>
var products = new[] { CategoryId1, Categ...
How to loop through all but the last item of a list?
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for x in y[:-1]
If y is a generator, then the above will not work.
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How do you underline a text in Android XML?
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If you are using a string resource xml file (supports HTML tags), it can be done using<b> </b>, <i> </i> and <u> </u>.
<resources>
<string name="your_string_here">
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