19 Matching Annotations
- Apr 2020
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stackoverflow.com stackoverflow.com
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gist.github.com gist.github.com
- Jan 2020
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web.archive.org web.archive.org
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I love merge too. Wow, it's been around a while.
> ? merge From: ~/.gem/ruby/2.4.5/gems/activerecord-5.2.2/lib/active_record/relation/spawn_methods.rb @ line 14: Owner: ActiveRecord::SpawnMethods Visibility: public Signature: merge(other) Number of lines: 17 Merges in the conditions from other, if other is an ActiveRecord::Relation. Returns an array representing the intersection of the resulting records with other, if other is an array.
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buildingvts.com buildingvts.com
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table name was not specified in the default scope definition. Since ActiveRecord does not canonically reference fields, after inner joining with another table another_table.term_id column can’t be found.
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You might be thinking––"a tool that allows me to write semantic and reusable queries? Sounds like Active Record". It's absolutley true that Active Record already provides a powerful query tool kit. But what happens when even simple queries stretch the bounds of Active Record's capabilities?
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github.com github.com
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github.com github.com
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guides.rubyonrails.org guides.rubyonrails.org
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before_destroy callbacks should be placed before dependent: :destroy associations (or use the prepend: true option), to ensure they execute before the records are deleted by dependent: :destroy.
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github.com github.com
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github.com github.com
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for pointing me to the spiritual successor to this project at: https://github.com/GeorgeKaraszi/ActiveRecordExtended
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stackoverflow.com stackoverflow.com
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Event.joins(:packages).having('array_agg(packages.type) @> array[?]', packages).group(:id)
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stackoverflow.com stackoverflow.com
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This illustrates a pretty common challenge with joins: you want them to be used for some of the query but not for other of it.
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gist.github.com gist.github.com
Tags
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URL
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- Dec 2019
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github.com github.com
- Aug 2019
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github.com github.com
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pluck_to_hash
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