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MongoDB: Is it possible to make a case-insensitive query?
...ance, I have a User table that has a username which is mixed case, but the id is an uppercase copy of the username. This ensures case-sensitive duplication is impossible (having both "Foo" and "foo" will not be allowed), and I can search by id = username.toUpperCase() to get a case-insensitive sear...
Django rest framework nested self-referential objects
...e a serializer as a field on itself, but you can use these methods to override what fields are used by default.
class CategorySerializer(serializers.ModelSerializer):
parentCategory = serializers.PrimaryKeyRelatedField()
class Meta:
model = Category
fields = ('parentCategor...
HTTP status code for update and delete?
...hat should be the HTTP status code is the request sent by the client is valid (DELETE mySite/entity/123) and the entity to delete does not exist.
– Martin
Dec 30 '11 at 21:27
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What's the point of 'const' in the Haskell Prelude?
...o add to hammar's excellent direct answer: humble functions like const and id are really useful as a higher order function for the same reason that they are fundamental in the SKI combinator calculus.
Not that I think haskell's prelude functions were modeled consciously after that formal system or...
LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
...eld } equals new { y.field } there is a compiler error. Functionally you didn't change anything. Using .Net 4.6.1.
– user2415376
Oct 28 '16 at 13:59
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Custom bullet symbol for elements in that is a regular character, and not an image
...ou want to use some other character in place of the bullet. Again, CSS provides a straightforward solution. Simply add list-style: none; to your rule and force the LIs to display with hanging indents. The rule will look something like this:
ul {
list-style: none;
margin-left: 0;
padding-lef...
How to Implement Custom Table View Section Headers and Footers with Storyboard
...ote that effective iOS 6 we can now use dequeueReusableHeaderFooterViewWithIdentifier instead of dequeueReusableCellWithIdentifier.
So in viewDidLoad, call either registerNib:forHeaderFooterViewReuseIdentifier: or registerClass:forHeaderFooterViewReuseIdentifier:. Then in viewForHeaderInSection, ca...
Get environment variable value in Dockerfile
...y app's configuration is contained within environment variables (loaded inside the app with dotenv ).
6 Answers
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How do I copy a version of a single file from one git branch to another?
...aths do
Multiple paths can be specified
an alternative:
git show commit_id:path/to/file > path/to/file
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How do I delete multiple rows in Entity Framework (without foreach)
...ch, right?
Well, yes, except you can make it into a two-liner:
context.Widgets.Where(w => w.WidgetId == widgetId)
.ToList().ForEach(context.Widgets.DeleteObject);
context.SaveChanges();
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