Module: ActiveHouse::Querying::GroupBy

Extended by:
ActiveSupport::Concern
Included in:
ActiveHouse::QueryBuilder
Defined in:
lib/active_house/querying/group_by.rb

Instance Method Summary collapse

Instance Method Details

#build_group_by_query_part ⇒ Object 



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# File 'lib/active_house/querying/group_by.rb', line 10

def build_group_by_query_part
  "GROUP BY #{values[:group_by].join(', ')}" unless values[:group_by].empty?
end

#group_by(*fields) ⇒ Object 



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# File 'lib/active_house/querying/group_by.rb', line 25

def group_by(*fields)
  dup.group_by!(*fields)
end

#group_by!(*fields) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/active_house/querying/group_by.rb', line 18

def group_by!(*fields)
  raise ArgumentError, 'wrong number of arguments' if fields.empty?
  formatted_fields = fields.map(&:to_s)
  values[:group_by] = (values[:group_by] + formatted_fields).uniq
  self
end

#initial_values ⇒ Object 



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# File 'lib/active_house/querying/group_by.rb', line 14

def initial_values
  super.merge group_by: []
end