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schema builder laravel migrations unique on two columns
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Simply you can use
$table->primary(['first', 'second']);
Reference: http://laravel.com/docs/master/migrations#creating-indexes
As an example:
Schema::create('posts_tags', function (Blueprint $table) {
$table->integer('post_id')->unsigned();
$table->integer('tag...
error: Unable to find vcvarsall.bat
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You can install compiled version from http://www.lfd.uci.edu/~gohlke/pythonlibs/
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Eclipse HotKey: how to switch between tabs?
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get list of open tabs : Ctrl + F6
Eclipse others Short Cuts
Link : http://www.shortcutworld.com/en/win/Eclipse.html
Pdf : http://eclipse-tools.sourceforge.net/Keyboard_shortcuts_%283.0%29.pdf
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get list from pandas dataframe column
...rame columns are Pandas Series when you pull them out, which you can then call x.tolist() on to turn them into a Python list. Alternatively you cast it with list(x).
import pandas as pd
data_dict = {'one': pd.Series([1, 2, 3], index=['a', 'b', 'c']),
'two': pd.Series([1, 2, 3, 4], inde...
Tick symbol in HTML/XHTML
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I normally use the fontawesome font(http://fontawesome.io/icon/check/), you can use it in html files:
<i class="fa fa-check"></i>
or in css:
content: "\f00c";
font-family: FontAwesome;
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How to concatenate strings in django templates?
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I was totally confused by this answer as it uses the include tag instead of the extend tag, but apparently it just works. Though I would recommend Ahsan's own answer as it also workes and is (in my opinion) semantically more correct a...
Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti
This is not a duplicate of "How to safely call an async method in C# without await" .
8 Answers
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Not equal != operator on NULL
...s behavior is the default (ANSI) behavior.
If you:
SET ANSI_NULLS OFF
http://msdn.microsoft.com/en-us/library/ms188048.aspx
You'll get different results.
SET ANSI_NULLS OFF will apparently be going away in the future...
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How to measure time taken between lines of code in python?
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If you want to measure CPU time, can use time.process_time() for Python 3.3 and above:
import time
start = time.process_time()
# your code here
print(time.process_time() - start)
First call turns the timer on, and second call tells you how many seconds have elapsed.
The...
ASP.NET MVC 4 Custom Authorize Attribute with Permission Codes (without roles)
...tring AccessLevel { get; set; }
protected override bool AuthorizeCore(HttpContextBase httpContext)
{
var isAuthorized = base.AuthorizeCore(httpContext);
if (!isAuthorized)
{
return false;
}
string privilegeLevels = string....