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What is the difference between pluck and collect in Rails?
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"if you need some fields, use selectand collect" - m>ca m>n't you just use pluck with multiple attributes, like pluck(:id, :name)?
– Alexander
Dec 10 '14 at 15:03
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COUNT DISTINCT with CONDITIONS
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You m>ca m>n try this:
select
count(distinct tag) as tag_count,
count(distinct (m>ca m>se when entryId > 0 then tag end)) as positive_tag_count
from
your_table_name;
The first count(distinct...) is easy.
The second one, looks s...
What exactly does the Access-Control-Allow-Credentials header do?
...JSON-P. JSON-P always includes cookies with the request, and this behavior m>ca m>n lead to a class of vulnerabilities m>ca m>lled cross-site request forgery, or CSRF.
In order to reduce the chance of CSRF vulnerabilities in CORS, CORS requires both the server and the client to acknowledge that it is ok to i...
Differences between git pull origin master & git pull origin/master
...pull changes from the origin remote, master branch and merge them to the lom>ca m>l checked-out branch.
git pull origin/master will pull changes from the lom>ca m>lly stored branch origin/master and merge that to the lom>ca m>l checked-out branch. The origin/master branch is essentially a "m>ca m>ched copy" of what wa...
What is the easiest way to push an element to the beginning of the array?
I m>ca m>n't think of a one line way to do this. Is there a way?
6 Answers
6
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Using :after to clear floating elements
...e contents after the <ul> should be aligned correctly. Therefore i m>ca m>n build the following:
5 Answers
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Disable file preview in VS2012
In VS2012 when you select a file in solution explorer it automatim>ca m>lly opens file in a special "preview" tab.
5 Answers
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How do I reword the very first git commit message?
...to a specific commit)
This way, the first commit is also included and you m>ca m>n just reword it like any other commit.
The --root option was introduced in Git v1.7.12 (2012). Before then the only option was to use filter-branch or --amend, which is typim>ca m>lly harder to do.
Note: see also this similar...
How to align texts inside of an input?
...shown above.
If you aren't using a nice framework like bootstrap then you m>ca m>n make your own version of this helper class. Similar to other answers but we are not going to add it directly to the input class so it won't apply to every single input on your site or page, this might not be desired behav...
Where m>ca m>n I find a NuGet package for upgrading to System.Web.Http v5.0.0.0?
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You need the Microsoft.AspNet.WebApi.Core package.
You m>ca m>n see it in the .csproj file:
<Reference Include="System.Web.Http, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
<SpecificVersion>False</SpecificVersion&gt...