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Combine two ActiveRecord::Relation objects
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There is a gem called active_record_union
that might be what you are looking for.
It's example usages is the following:
current_user.posts.union(Post.published)
current_user.posts.union(Post.published).where(id: [6, 7])
current_user.posts.union("published_at < ?", Time.now)
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Android Studio Editor Font Sizing
...likely to cause problems elsewhere since all the other Text is larger than what is shown in the 'Edit Window'.
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How do I get the base URL with PHP?
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what about $_SERVER['REQUEST_SCHEME']? isn't that simpler?
– frostymarvelous
Apr 2 '14 at 17:52
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Pandas: drop a level from a multi-level column index?
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This is essentially what Mint's first answer does. Now, there is also no need to specify the list of names (which is generally tedious), as it is given to you by df.columns.get_level_values(1).
– Eric O Lebigot
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JavaScript code to stop form submission
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Probably because the title doesn't match what the guy was actually asking.
– Danial
Jun 3 at 4:28
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Convert command line arguments into an array in Bash
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Newbie questions: How does bash know what to put into the arg field - is it a predefined variable? ${var} is expanded to the content of var. ${var[n]} is expanded to the content of element n of array var. Is ${var[@]} then expanding the entire array, i.e. ${var[...
How to make gradient background in android
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What if i want to put a gradient in the background for linear layout??
– Ankit Srivastava
Nov 24 '13 at 17:18
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How can a Javascript object refer to values in itself? [duplicate]
...he value of key2. It will always be a calculated value. Most likely that's what you want.
However, if you would like to be able to redefine the value of key2, then you will need a place to cache its value independently of the calculation.
Somewhat like this:
var book = { _key2: " works!" }
Obje...
How to output numbers with leading zeros in JavaScript [duplicate]
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I think this is just what I need. The argument 'size' refers to the FINAL character count and not the total number of zeros to add, right?
– novwhisky
Aug 1 '13 at 14:35
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php - get numeric index of associative array
...ke It's not going to re-order it unless you use a sort function. Not sure what sort of guarantee you're looking for, but it's not like the JavaScript model where there is no static order to associative arrays.
– Fosco
May 1 '12 at 23:20
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