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Django ManyToMany filter()
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Just restating what Tomasz said.
There are many examples of FOO__in=... style filters in the many-to-many and many-to-one tests. Here is syntax for your specific problem:
users_in_1zone = User.objects.filter(zones__id=<id1>)
# same thing but us...
Why is there no Convert.toFloat() method?
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There is - but it's called Convert.ToSingle(). float is a C# alias for the System.Single type.
"Single" is the name for a float in the BCL. "float" is an alias provided by C#. There's a Convert.ToSingle() method, just like there's
Convert.ToInt...
Python/postgres/psycopg2: getting ID of row just inserted
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cursor.execute("INSERT INTO .... RETURNING id")
id_of_new_row = cursor.fetchone()[0]
And please do not build SQL strings containing values manually. You can (and should!) pass values separately, making it unnecessary to escape and SQL injection impossible:
sql_stri...
Which annotation should I use: @IdClass or @EmbeddedId
...PI) specification has 2 different ways to specify entity composite keys: @IdClass and @EmbeddedId .
7 Answers
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How can I decrease the size of Ratingbar?
...tingBar with either ratingBarStyleSmall or a custom style inheriting from Widget.Material.RatingBar.Small (assuming you're using Material Design in your app).
Option 1:
<RatingBar
android:id="@+id/ratingBar"
style="?android:attr/ratingBarStyleSmall"
... />
Option 2:
// styles....
Is the 'override' keyword just a check for a overridden virtual method?
...s still there, the new one is added just as an overload. In this case, all calls towards the old method will function just as before, without any change in behavior (which would have been the very purpose of the rewriting).
one forgets to declare the method in the superclass as "virtual", but still ...
Find all tables containing column with specified name - MS SQL Server
...bleName'
FROM sys.columns c
JOIN sys.tables t ON c.object_id = t.object_id
WHERE c.name LIKE '%MyName%'
ORDER BY TableName
,ColumnName;
Search Tables & Views:
SELECT COLUMN_NAME AS 'ColumnName'
,TABLE_NAME AS 'TableName'
FROM INFO...
Sequence contains no matching element
...hrowing the exception:
var documentRow = _dsACL.Documents.First(o => o.ID == id)
First() will throw an exception if it can't find any matching elements. Given that you're testing for null immediately afterwards, it sounds like you want FirstOrDefault(), which returns the default value for the ...
Click event doesn't work on dynamically generated elements [duplicate]
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The click() binding you're using is called a "direct" binding which will only attach the handler to elements that already exist. It won't get bound to elements created in the future. To do that, you'll have to create a "delegated" binding by using on().
De...
OS X Framework Library not loaded: 'Image not found'
...bsolute path. This path comes from the framework's install name (sometimes called rpath), which can be examined using:
otool -D MyFramework.framework/MyFramework
When a framework is embedded into an app this path should be relative and of this form: @rpath/MyFramework.framework/MyFramework. If yo...