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Rails: Adding an index after adding column
Suppose I created a table table in a Rails app. Some time later, I add a column running:
5 Answers
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jQuery slide left and show
I extended the jQuery effects called slideRightShow() and slideLeftHide() with a couple functions that work similarly to slideUp() and slideDown() as seen below. However, I would also like to implement slideLeftShow() and slideRightHide() .
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Custom HTTP Authorization Header
I was wondering if it's acceptable to put custom data in an HTTP authorization header. We're designing a RESTful API and we may need a way to specify a custom method of authorization. As an example, let's call it FIRE-TOKEN authentication.
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How does Python 2 compare string and int? Why do lists compare as greater than numbers, and tuples g
The following snippet is annotated with the output ( as seen on ideone.com ):
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Import a module from a relative path
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Assuming that both your directories are real Python packages (do have the __init__.py file inside them), here is a safe solution for inclusion of modules relatively to the location of the script.
I assume that you want to do this, because you need to include a set of modules with your script. I us...
What is the expected syntax for checking exception messages in MiniTest's assert_raises/must_raise?
...ted syntax for checking exception messages in MiniTest's assert_raises / must_raise ?
4 Answers
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Query for array elements inside JSON type
I'm trying to test out the json type in PostgreSQL 9.3.
I have a json column called data in a table called reports . The JSON looks something like this:
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jQuery UI Sortable Position
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You can use the ui object provided to the events, specifically you want the stop event, the ui.item property and .index(), like this:
$("#sortable").sortable({
stop: function(event, ui) {
alert("New position: " + u...
Vim: Move cursor to its last position
Is it possible in (g)Vim to move the cursor to its previous position (while in normal mode)? Something to cycle back and forth in the list of previous cursor positions would be ideal. But also just to switch to the last location would suffice (something like cd - in bash with directories).
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sed edit file in place
... out if it is possible to edit a file in a single sed command without manually streaming the edited content into a new file and then renaming the new file to the original file name. I tried the -i option but my Solaris system said that -i is an illegal option. Is there a different way?
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