Crecto
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Multi / Transactions
Crecto provides the
Multi class, for utilizing database transactions.With
Multi, if any step of the transaction fails then all changes are rolled back.As with
Query, its easiest to create a shortcut variable.1
Multi = Crecto::Multi
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Multi example and methods
Multi example and methodsFirst create the multi intance
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multi = Multi.new
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Build the multi with the needed database operations
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# Create the multi instance
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multi = Multi.new
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# Insert a new record
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multi.insert(new_user)
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# Delete an record
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multi.delete(image)
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# Delete all
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multi.delete_all(Comment)
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# Update a record
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multi.update(post)
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# Update all
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multi.update_all(User, Query.where(name: "Shaquille"), {name: "RuPaul"})
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Insert the multi using your Repo
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MyRepo.transaction(multi)
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Check the multi for errors. If there were errors on any of the operations, then none of the operations will be persisted.
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if multi.errors.any?
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puts "good to go"
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else
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puts "woops"
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end
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Last modified 4yr ago
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Multi example and methods