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ActiveRecord, has_many :through, and Polymorphic Associations
...on. :source should points to the polymorphic belongs_to relationship. Then all you need to do is specify :source_type for the relationship you're trying to define.
This fix to the Widget model should allow you do exactly what you're looking for.
class Widget < ActiveRecord::Base
has_many :wid...
How to align a div to the top of its parent but keeping its inline-block behaviour?
...ertical-align: top; to #boxContainer div selector. It applies the style to all div elements inside the boxContainer.
– MarthyM
Nov 3 '16 at 8:09
add a comment
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Removing list of vms in vagrant cache
...s untouched, though. Meaning one still has to unregister and delete it manually. The very simple thing should be that vagrant does its job properly when given $ vagrant destroy -f <id>
– silverdr
Dec 14 '15 at 16:04
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mailto link multiple body lines
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This should work for all special characters, right? &=%26, %=%25, are there any characters where this pattern doesn't hold?
– blast_hardcheese
Nov 9 '13 at 9:50
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Tmux vs. iTerm2 split panes
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There is another advantage of tmux: what happens if you accidentally close iterm2? If you do it really by accident, you want to reopen everything again. With tmux it is normally as simple as reattaching session without losing anything. Most terminal emulators send SIGHUP to all children w...
difference between css height : 100% vs height : auto
...fficiently worded to make it ovbious that the element will grow to include all content, whether it is its own text, or a child's content. Of course it can be argued that its own text is also a child. This provides visual confirmation of the behavior.
– SherylHohman
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configure: error: C compiler cannot create executables
...be left over from migrating from an older version of the OS. If you've installed Xcode 4.3.x, you need to launch it, go into its preferences, select the Downloads tab, and click "Install" next to the Command Line Tools package.
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What does Maven Update Project do in Eclipse?
...or doing a project update might revert what you have changed. There are usually some things I have to correct myself anyway though, such as build path exclusions that m2eclipse likes to put in and strange deployment assembly configurations.
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Is there an equivalent to e.PageX position for 'touchstart' event as there is for click event?
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this works fine for all javascript based codes. screw jquery
– Martian2049
Aug 31 '16 at 15:37
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What is AssemblyInfo.cs used for?
...-exposed, you don't need this. It is randomly
generate. In any case, normally, you don't need to modify it.
Credits goes to : http://social.msdn.microsoft.com/Forums/en/csharpgeneral/thread/8955449f-71ac-448e-9ee6-5329fceecd3c
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