Batch Insert

This plugin adds batch insertion capabilities to ActiveRecord model classes.

The API is very similar to the standard new and create functions provided by ActiveRecord, but will not return a saved object to the caller.

License

This plugin is released under the MIT license, and was contributed to the Rails community by the good people at Software Projects

Example

Previously:

100.times { ModelClass.create! :name => 'Test', :description => 'An example object being created.' }

Now:

ModelClass.batch_insert do
	100.times { ModelClass.insert :name => 'Test', :description => 'An example object being created.' }
end

Batch insertions return the same result as new()

ModelClass.batch_insert do
	args = {:name => 'Test', :description => 'An example object being created.'}

	ModelClass.insert(args)					# ModelClass instance
	ModelClass.insert(args).new_record?		# true
	ModelClass.insert(args).id				# nil
end		# The insertion is done at this point in the code.

Invalid objects will immediately cause an exception

ModelClass.batch_insert do
	invalid_args = {}
	ModelClass.insert(invalid_args)			# Exception!
end

Constraint violations will cause an exception when the batch is inserted

ModelClass.batch_insert do
	conflict = {:unique_value => 'Collide!'}
	ModelClass.insert(conflict)
	ModelClass.insert(conflict)
end		# Exception!

Custom batch size is supported (the default is unlimited)

ModelClass.batch_insert :batch_size => 10 do
	# This loop will cause 3 INSERT statements
	37.times do |i|
		ModelClass.insert :name => "object #{i}", :description => "The #{i.ordinalize} object"
	end
end     # And the last 7 objects will be inserted here.

License

software-projects/batch_insert

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