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  Query for NULL 'or' empty string in ActiveRecord

  PostgreSQL Ruby by Matt Polito

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  Debugging Action Callbacks (aka Filters) in Rails

  Ruby by Dorian Karter

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  Rails Quick Tips: Easy ActiveRecord Optimizations

  Ruby by Micah Woods

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  Datetime select

  Ruby by Pavel Pravosud

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  Rails Quick Tips - ActiveRecord Ordering

  Ruby by Matt Polito

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  Rails Quick Tips - Pluck Multiple Columns

  Ruby by Matt Polito

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  Rails Quick Tips - Random Records

  Ruby by Matt Polito

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  Rails Quick Tips - ActiveRecord::Calculations.pluck

  Ruby by Matt Polito