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belongs_to through associations
...f using a proper unique constraint in your database. When you do this in ruby you have race conditions.
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What do commas and spaces in multiple classes mean in CSS?
... I understand that we can apply one rule to several classes separated by comas. It's not clear to me why some classes in the example are not separated by commas.
– Roman
Jul 27 '10 at 13:53
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How to call Android contacts list?
...the result code is RESULT_OK.
You can get the URI of the selected contact by calling getData() on the data Intent parameter. To get the name of the selected contact you need to use that URI to create a new query and extract the name from the returned cursor.
@Override
public void onActivityResult(...
Why are dashes preferred for CSS selectors / HTML attributes?
...lector, which selects any element containing the text, optionally followed by a dash:
span[class|="em"] { font-style: italic; }
This would make the following HTML elements have italic font-style:
<span class="em">I'm italic</span>
<span class="em-strong">I'm italic too</span...
Why is using the rails default_scope often recommend against?
...d. So while you might have wanted to be sure to not list unpublished posts by chance, you're now creating published ones by default.
Problem 2
Consider a more elaborate example:
class Post < ActiveRecord::Base
default_scope { where(published: true) }
belongs_to :user
end
class User <...
req.query and req.param in ExpressJS
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@AnandRaj what do you mean by undefined? do you mean params are not known?
– Abhijit Gaikwad
Jan 30 '17 at 19:46
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Check if value exists in Postgres array
...stion that is not related to this answer. I think you will have more luck by asking your question as a new post, not in the comment ;)
– vol7ron
Apr 29 '16 at 14:25
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Unable to access JSON property with “-” dash
...ascript and its the native implementation to access an object property key by string, sure it works in everything on top
– john Smith
Jan 12 '16 at 22:15
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Is there a float input type in HTML5?
...lid (along with max and min), which defaults to 1. This value is also used by implementations for the stepper buttons (i.e. pressing up increases by step).
Simply change this value to whatever is appropriate. For money, two decimal places are probably expected:
<input type="number" step="0.01"&...
How do I verify/check/test/validate my SSH passphrase?
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You can verify your SSH key passphrase by attempting to load it into your SSH agent. With OpenSSH this is done via ssh-add.
Once you're done, remember to unload your SSH passphrase from the terminal by running ssh-add -d.
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