Class: ParamsReady::Query::JoinStatement::Builder

Inherits:
Object
  • Object
show all
Defined in:
lib/params_ready/query/join_clause.rb

Instance Method Summary collapse

Constructor Details

#initialize(on: nil, eq: nil, &block) ⇒ Builder

Returns a new instance of Builder.



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# File 'lib/params_ready/query/join_clause.rb', line 70

def initialize(on: nil, eq: nil, &block)
  @condition_builders = []
  if on.nil?
    raise ParamsReadyError, 'Parameter :eq unexpected' unless eq.nil?
  else
    condition = on(on)
    condition.eq(eq) unless eq.nil?
  end
  @block = block
end

Instance Method Details

#build ⇒ Object 



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# File 'lib/params_ready/query/join_clause.rb', line 87

def build
  instance_eval(&@block) unless @block.nil?
  JoinStatement.new(@condition_builders.map(&:build))
end

#on(expression, arel_table: nil) ⇒ Object 



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# File 'lib/params_ready/query/join_clause.rb', line 81

def on(expression, arel_table: nil)
  condition = JoinCondition::Builder.new(expression, arel_table: arel_table)
  @condition_builders << condition
  condition
end