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active_record.rb
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active_record.rb
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module Datagrid
module Drivers
class ActiveRecord < AbstractDriver
def self.match?(scope)
return false unless defined?(::ActiveRecord)
if scope.is_a?(Class)
scope.ancestors.include?(::ActiveRecord::Base)
else
scope.is_a?(::ActiveRecord::Relation)
end
end
def to_scope(scope)
scope.scoped({})
end
def where(scope, condition)
scope.where(condition)
end
def asc(scope, order)
# Rails 3.x.x don't able to override already applied order
# Using #reorder instead
scope.reorder(order)
end
def desc(scope, order)
scope.reorder(order).reverse_order
end
def default_order(scope, column_name)
has_column?(scope, column_name) ? [scope.table_name, column_name].join(".") : nil
end
def greater_equal(scope, field, value)
scope.where(["#{field} >= ?", value])
end
def less_equal(scope, field, value)
scope.where(["#{field} <= ?", value])
end
def has_column?(scope, column_name)
scope.column_names.include?(column_name.to_s)
end
end
end
end