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Django auto_now and auto_now_add
...t using a custom save() method.
So, to make this work properly, I would recommend not using auto_now or auto_now_add and instead define your own save() method to make sure that created is only updated if id is not set (such as when the item is first created), and have it update modified every time...
Remove Application Insight from application on Visual Studio 2013
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How to select the nth row in a SQL database table?
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106
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Android: Generate random color on click?
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Kaciula, you are right the n is excluded: docs.oracle.com/javase/1.4.2/docs/api/java/util/Random.html
– Lumis
Dec 31 '11 at 10:20
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Trigger a button click with JavaScript on the Enter key in a text box
...rt("Button code executed.");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Username:<input id="username" type="text"><br>
Password:&nbsp;<input id="pw" type="password"><br>
<button id="myButton">Submi...
How can I redirect HTTP requests made from an iPad?
...his is with a tool I wrote: testProxy. No configuration necessary: github.com/edwinm/testProxy
– edwin
May 11 '17 at 17:27
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How to read a CSV file into a .NET Datatable
...ders specified in the first line. What you have appears to be more generic comma-delimited, discriminated data, requiring more sophisticated "ETL" to parse from the file into object instances of varying types (which could include DataRows of different DataTables).
– KeithS
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How to get nice formatting in the Rails console
...put.
y ProductColor.all
Assuming you are in script/console
As jordanpg commented, this answer is outdated. For Rails 3.2+ you need to execute the following code before you can get the y method to work:
YAML::ENGINE.yamler = 'syck'
From ruby-docs
In older Ruby versions, ie. <= 1.9, Syck...
Build tree array from flat array in javascript
I have a complex json file that I have to handle with javascript to make it hierarchical, in order to later build a tree.
Every entry of the json has :
id : a unique id,
parentId : the id of the parent node (which is 0 if the node is a root of the tree)
level : the level of depth in the tree
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Unable to create/open lock file: /data/mongod.lock errno:13 Permission denied
...eat video about mounting a ebs volume to ec2 instance:
http://www.youtube.com/watch?v=gBII3o3BofU
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