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Rails: create on has_one association
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First of all, here is how to do what you want:
@user = current_user
@shop = Shop.create(params[:shop])
@user.shop = @shop
Now here's why your version did not work:
You probably thought that this might work because if User had a has_many relation to Shop...
How to show git log history for a sub directory of a git repo?
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What if the directory was deleted in the current head?
– Aaron Franke
Apr 26 at 22:19
add a comment
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How to write an async method with out parameter?
...fe choosing this option, almost for sure.
Approach 3 - use ContinueWith
What if you just use the TPL as designed? No tuples. The idea here is that we use exceptions to redirect ContinueWith to two different paths.
await DoAsync(name).ContinueWith(task =>
{
if (task.Exception != null)
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How does Activity.finish() work in Android?
Could someone provide a description of what happens when an Activity calls its finish() method?
4 Answers
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Swift - How to convert String to Double
...ike 1 000,00 it would cut off the 2 decimals at the end. At least this is whats happening for Objective-C. -- As per Apple documentation:(They are not locale-aware) The following convenience methods all skip initial space characters (whitespaceSet) and ignore trailing characters. They ar...
Simulate first call fails, second call succeeds
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The shortest way to write what you want is
when(myMock.doTheCall()).thenReturn("Success", "you failed");
When you supply mutiple arguments to thenReturn like this, each argument will be used at most once, except for the very last argument, which is...
How to open a web server port on EC2 instance
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@Noitidart Save is what he means. But I am sure you figured that out by now :)
– mattdevio
Oct 26 '18 at 7:31
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How do I create directory if it doesn't exist to create a file?
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Directory.CreateDirectory does exactly what you want: It creates the directory if it does not exist yet. There's no need to do an explicit check first.
– Paolo Moretti
Oct 8 '12 at 15:45
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SQLAlchemy IN clause
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With the expression API, which based on the comments is what this question is asking for, you can use the in_ method of the relevant column.
To query
SELECT id, name FROM user WHERE id in (123,456)
use
myList = [123, 456]
select = sqlalchemy.sql.select([user_table.c.id, user_...
@import vs #import - iOS 7
... or Mavericks SDK, but you can still release for older OSs (say iOS 4.3 or whatever). Modules don't change how your code is built or any of the source code.
From the WWDC slides:
Imports complete semantic description of a framework
Doesn't need to parse the headers
Better way to import a framewor...