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Aug 7th, 9:41 am

persisted? vs new_record?

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Jul 7th, 1:12 am

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Jun 1st, 5:26 pm

Custom Rails Validator

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May 3rd, 8:45 am

% in ruby

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Mar 28th, 6:03 pm

Variables & Scope trong Ruby

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Mar 1st, 11:29 am

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