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ActiveRecord, has_many :through, and Polymorphic Associations

...owever, is there any way to accomplish this these days without source_type and two separate associations? – Emeka Feb 27 '16 at 15:27 ...
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Difference between save and saveAndFlush in Spring data jpa

... On saveAndFlush, changes will be flushed to DB immediately in this command. With save, this is not necessarily true, and might stay just in memory, until flush or commit commands are issued. But be aware, that even if you flush th...
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Useful example of a shutdown hook in Java?

...ying to make sure my Java application takes reasonable steps to be robust, and part of that involves shutting down gracefully. I am reading about shutdown hooks and I don't actually get how to make use of them in practice. ...
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Removing list of vms in vagrant cache

... You should use the following command to remove invalid entries from the global index: vagrant global-status --prune share | improve this answer |...
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Android WebView style background-color:transparent ignored on android 2.2

... it doesn't work in android 3.x if you are using android:hardwareAccelerated="true" – Macarse Jul 28 '11 at 18:46 2 ...
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Removing non-repository files with git?

I'm writing Autotools code and in the process of development, tons of files are generated. 1 Answer ...
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How to tell Maven to disregard SSL errors (and trusting all certs)?

I frequently need to run "mvn" command : 4 Answers 4 ...
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use initial width for element not working in IE

I have a graph plugin that inserts canvas and a legend <table> to its container. In this plugin the table has no width defined and in my CSS there is a width for tables inside that container were my plugin gets inserted. ...
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SQL multiple column ordering

I am trying to sort by multiple columns in SQL, and in different directions. column1 would be sorted descending, and column2 ascending. ...
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What does passport.session() middleware do?

...entication system using Passport.js using Easy Node Authentication: Setup and Local tutorial . 4 Answers ...