calculate(operation, column_name, options = {}) Instance Public methods This

count(column_name = nil, options = {}) Instance Public methods Count the records

ids() Instance Public methods Pluck all the ID's for the relation using the

average(column_name, options = {}) Instance Public methods Calculates the average

minimum(column_name, options = {}) Instance Public methods Calculates the minimum

maximum(column_name, options = {}) Instance Public methods Calculates the maximum

sum(*args) Instance Public methods Calculates the sum of values on a given column

pluck(*column_names) Instance Public methods Use pluck as a shortcut