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Combine two ActiveRecord::Relation objects
...ed).where(id: [6, 7])
current_user.posts.union("published_at < ?", Time.now)
user_1.posts.union(user_2.posts).union(Post.published)
user_1.posts.union_all(user_2.posts)
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In Vim, is there a way to paste text in the search line?
... copy it to a named register, with "ayy (if the cursor is on that line!).
Now you can execute the contents of the "a" register from Vim's Ex command line with:
:[OPTIONAL_RANGE]@a
I use it all the time.
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Reorder / reset auto increment primary key
...uto increment primary key. I deleted some rows in the middle of the table. Now I have, for example, something like this in the ID column: 12, 13, 14, 19, 20. I deleted the 15, 16, 17 and 18 rows.
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twitter-bootstrap vs jquery-mobile [closed]
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I don't know if "better" is something you can answer since they serve different purposes. Bootstrap is great all-purpose CSS library whereas jQueryMobile is closer to a framework. Meaning jQueryMobile doesn't just make your pages lo...
In Python, using argparse, allow only positive integers
... case, you can also use the choices parameter if your upper limit is also known:
parser.add_argument('foo', type=int, choices=xrange(5, 10))
Note: Use range instead of xrange for python 3.x
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How to build an APK file in Eclipse?
...new key store path -> Fill the detail -> Set the .apk location -> Now you can get your .apk file*
Install it in your mobile.
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jQuery UI “ $(”#datepicker“).datepicker is not a function”
... a reference to my own jQuery library along with jQuery Tools CDN which unknowingly included jQuery.
– DavGarcia
Apr 23 '13 at 19:47
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How to convert string to char array in C++?
I would like to convert string to char array but not char* . I know how to convert string to char* (by using malloc or the way I posted it in my code) - but that's not what I want. I simply want to convert string to char[size] array. Is it possible?
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jQuery Selector: Id Ends With?
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If you know the element type then: (eg: replace 'element' with 'div')
$("element[id$='txtTitle']")
If you don't know the element type:
$("[id$='txtTitle']")
More information available
// the old way, needs exact ID: docu...
Installing specific package versions with pip
... answer to this question - thanks for your help. Hitting a different issue now: "error: command '/usr/bin/gcc-4.2' failed with exit status 1" while building '_mysql' extension. I know that I have GCC, and the install for MySQL_python 1.2.3 goes smoothly. Have others seen this issue, specifically wit...