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Rails: How can I set default values in ActiveRecord?
...||= build_address #let's you set a default association
end
end
Now you have just one place to look for initialization of your models. I'm using this method until someone comes up with a better one.
Caveats:
For boolean fields do:
self.bool_field = true if self.bool_field.nil?
See Pa...
EF Code First foreign key without navigation property
...]. That will link the property to whatever the key is on the parent table. Now you've got a hard-coded table name though.
– Triynko
Feb 27 '18 at 17:12
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Rolling or sliding window iterator?
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Nice answer, but (and I know you're just reproducing the recipe as linked), I wonder why the default window size should be 2? Should it have a default at all?
– SingleNegationElimination
Jul 25 '11 at 22:02
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How to prevent ajax requests to follow redirects using jQuery
...s which prevent redirection. In case of "Microsoft world", which I better know, you can look at WinHttpSetOption function which can be used to set WINHTTP_OPTION_DISABLE_FEATURE option with the WINHTTP_DISABLE_REDIRECTS value. Another way are the usage of WINHTTP_OPTION_REDIRECT_POLICY option with t...
UITableView, Separator color where to set?
...
Now you should be able to do it directly in the IB.
Not sure though, if this was available when the question was posted originally.
share
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How to add custom validation to an AngularJS form?
...on
Custom Validation Directives
Edit: using ngMessages in 1.3.X
You can now use the ngMessages module instead of ngShow to show your error messages. It will actually work with anything, it doesn't have to be an error message, but here's the basics:
Include <script src="angular-messages.js"&g...
Anatomy of a “Memory Leak”
...entally when you hold on to references beyond the intended scope.
You'll know that you have leaks when you start getting OutOfMemoryExceptions or your memory usage goes up beyond what you'd expect (PerfMon has nice memory counters).
Understanding .NET's memory model is your best way of avoiding i...
What are the differences between numpy arrays and matrices? Which one should I use?
...the calls to the dot function. But this argument will disappear in future, now that the @-operator is accepted for use with matrix multiplication, see PEP 465. This will need Python 3.5 and the latest version of Numpy. The matrix class might be deprecated in the far future, so better to use ndarray ...
How to delete from multiple tables in MySQL?
...ding deletes can cause no more trouble than delete on its own. We already know that pa is a proper child of p due to the id/pet_id mapping.
– paxdiablo
Jul 26 '10 at 3:24
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An “and” operator for an “if” statement in Bash
...I think there might be more than one ways but I am satisfied with this for now.
– Kushal Ashok
Aug 26 '16 at 12:32
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