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Is there a way to get a collection of all the Models in your Rails app?

Is there a way that you can get a collection of all of the Models in your Rails app? 28 Answers ...
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Multiple Indexes vs Multi-Column Indexes

I've just been adding an Index to a table in SQL Server 2005 and it got me thinking. What is the difference between creating 1 index and defining multiple columns over having 1 index per column you want to index. ...
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How to recursively find and list the latest modified files in a directory with subdirectories and ti

I have several directories with several subdirectories and files in them. I need to make a list of all these directories that is constructed in a way such that every first-level directory is listed next to the date and time of the latest created/modified file within it. ...
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The order of elements in Dictionary

My question is about enumerating Dictionary elements 6 Answers 6 ...
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NoClassDefFoundError - Eclipse and Android

I'm having a problem trying to run an Android app which, up until adding a second external library to its build path, was working fine. Since having added the scoreninja jar, I now get a NoClassDefFoundError when I try to run the app. ...
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In C#, how do I calculate someone's age based on a DateTime type birthday?

...Type represents a person's birthday. How could I calculate his / her age in years? 61 Answers ...
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Post-increment and pre-increment within a 'for' loop produce same output [duplicate]

The following for loops produce identical results even though one uses post increment and the other pre-increment. 12 Answe...
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Why is f(i = -1, i = -1) undefined behavior?

I was reading about order of evaluation violations , and they give an example that puzzles me. 11 Answers ...
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Converting a list to a set changes element order

Recently I noticed that when I am converting a list to set the order of elements is changed and is sorted by character. ...
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Migration: Cannot add foreign key constraint

I'm trying to create foreign keys in Laravel however when I migrate my table using artisan i am thrown the following error: ...