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How to reset a single table in rails?
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A lot of people (like me) come here to find how to delete all the data in the table. Here you go:
$ rails console
> ModelName.delete_all
or
> ModelName.destroy_all
destroy_all checks dependencies and callbacks, and takes a little longer.
delete_all is a straight SQL que...
List of installed gems?
Is there a Ruby method I can call to get the list of installed gems?
11 Answers
11
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How to remove a web site from google analytics
...t "Delete this view."
It will warn you that you're about to delete all of the data associated with this property. If you're sure, confirm.
Done!
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disable all form elements inside div
is there a way to disable all fields (textarea/textfield/option/input/checkbox/submit etc) in a form by telling only the parent div name in jquery/javascript?
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Apache .htaccess 禁止访问某目录方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...禁止的目录中的.htaccess文件中添加一下两行代码。
order allow,deny
deny from all
(可以把all换成某一ip地址)最简单方法，在所要禁止的目录中的.htaccess文件中添加一下两行代码。
order allow,deny
deny from all
(可以把all换成某一ip地...
Enable the display of line numbers in Visual Studio
...al Studio has line numbering:
Tools -> Options -> Text Editor -> All Languages -> check the "Line numbers" checkbox.
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Entity Framework - Start Over - Undo/Rollback All Migrations
...oint where I just want to start over, so is there a way to completely undo all migrations, erase the history, and delete the migration code, so I'm back to square one?
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How do I “Add Existing Item” an entire directory structure in Visual Studio?
I have a free standing set of files not affiliated with any C# project at all that reside in a complicated nested directory structure.
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How can I list ALL grants a user received?
I need to see all grants on an Oracle DB.
6 Answers
6
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SQL Server CTE and recursion example
...ws employee info with the help of Sql server CTE and recursion. It is basically showing employees and their manager info. I am not able to understand how this query works. Here is the query:
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