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Eager load polymorphic
...
As an addendum the answer at the top, which is excellent, you can also specify :include on the association if for some reason the query you are using is not including the model's table and you are getting undefined table errors.
Like so:
belongs_to :shop, ...
How to perform OR condition in django queryset?
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Mapping composite keys using EF code first
...c DbSet<Feature> Features{get;set;}
public VegaDbContext(DbContextOptions<VegaDbContext> options):base(options)
{
}
// we override the OnModelCreating method here.
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
mod...
UICollectionView inside a UITableViewCell — dynamic height?
...width when setting the collectionView.frame's width. I also had to add the top and bottom margins to the return value CGSize height.
To get these constraint constants, I had the option of either creating outlets to the constraints, hard-coding their constants, or looking them up by an identifier. ...
SVG: text inside rect
...oup with the text element coming after the rect element ( so it appears on top ).
<svg xmlns="http://www.w3.org/2000/svg">
<g>
<rect x="0" y="0" width="100" height="100" fill="red"></rect>
<text x="0" y="50" font-family="Verdana" font-size="35" fill="blue...
C++11 std::threads vs posix threads
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The std::thread library is implemented on top of pthreads in an environment supporting pthreads (for example: libstdc++).
I think the big difference between the two is abstraction. std::thread is a C++ class library. The std::thread library includes many abstract fe...
What's the difference between BaseAdapter and ArrayAdapter?
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Chrome Dev Tools - Modify javascript and reload
...errides.
Select which directory you want to save your changes to.
At the top of your viewport, click Allow to give DevTools read and write access to the directory.
Make your changes."
UPDATE (March 19, 2018): It's live, detailed explanations here: https://developers.google.com/web/updates/2018...
How to get controls in WPF to fill available space?
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The topic still exists in MSDN, but the link changed to this: docs.microsoft.com/en-us/dotnet/framework/wpf/controls/…
– Andrea Antonangeli
Jun 25 '17 at 12:44
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Proper package naming for testing with the Go language
...ms much harder to read because it is unclear whether a name
like Quux is a top-level identifier in the current package or in an imported package.
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