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Contents
# Dataset methods are methods that the model class extends its dataset with in
# the call to set_dataset.
module Sequel::Model::DatasetMethods
# Destroy each row in the dataset by instantiating it and then calling
# destroy on the resulting model object. This isn't as fast as deleting
# the object, which does a single SQL call, but this runs any destroy
# hooks.
def destroy
raise(Error, "No model associated with this dataset") unless @opts[:models]
count = 0
@db.transaction {each {|r| count += 1; r.destroy}}
count
end
# This allows you to call to_hash without any arguments, which will
# result in a hash with the primary key value being the key and the
# model object being the value.
def to_hash(key_column=nil, value_column=nil)
if key_column
super
else
raise(Sequel::Error, "No primary key for model") unless pk = @opts[:models][nil].primary_key
super(pk, value_column)
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems