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How do I parse JSON with Ruby on Rails? [duplicate]
I'm looking for a simple way to parse JSON, extract a value and write it into a database in Rails.
12 Answers
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Git push error: Unable to unlink old (Permission denied)
In the remote server I have a post-receive hook set up in order to make a git checkout of my repository:
14 Answers
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Generating a random & unique 8 character string using MySQL
...eaving out the number plate
SELECT @lid:=LAST_INSERT_ID();
UPDATE vehicles SET numberplate=concat(
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@lid)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@seed)*4294967296))*36...
How to set default value to the input[type=“date”] [duplicate]
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if you are using PHP, you can set the value like this
<input type="date" value="<?php echo date("Y-m-d");?>">
but remember that it would return the date of the server. if you want to use from the client, use javascript instead.
hope it help...
“Find next” in Vim
To search forward in Vim for cake , I'd type /cake , but the cursor jumps to the first match when I press return. Is there a Vim command analogous to "find next"?
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How do I get a TextBox to only accept numeric input in WPF?
...: <TextBox PreviewTextInput="PreviewTextInput" />.
Then inside that set the e.Handled if the text isn't allowed. e.Handled = !IsTextAllowed(e.Text);
I use a simple regex in IsTextAllowed method to see if I should allow what they've typed. In my case I only want to allow numbers, dots and das...
Why is `replace` property deprecated in AngularJS directives? [duplicate]
According to the API docs , directives' replace attribute is deprecated, so in the future, all directives will behave with the current default of replace: false .
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How to detect a Christmas Tree? [closed]
...of when looking at this result. First is that DBSCAN requires the user to set a "proximity" parameter in order to regulate its behavior, which effectively controls how separated a pair of points must be in order for the algorithm to declare a new separate cluster rather than agglomerating a test po...
How to Add Stacktrace or debug Option when Building Android Studio Project
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You can use GUI to add these gradle command line flags from
File > Settings > Compiler (Gradle-based Android Project)
For MacOS user, it's here
Android Studio > Preferences > Build, Execution, Deployment > Compiler
like this (add --stacktrace or --debug)
(Note that the s...
Cannot set property 'innerHTML' of null
Why do I get an error or Uncaught TypeError: Cannot set property 'innerHTML' of null?
I thought I understood innerHTML and had it working before.
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