Class: Rusql::Join

Inherits:
Object
  • Object
show all
Defined in:
lib/rusql/join.rb

Constant Summary collapse

TYPES = 
%i(
  inner_join
  left_outer_join
  outer_join
)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(type, table, condition) ⇒ Join

Returns a new instance of Join.

Raises:

  • (Exception) 


13
14
15
16
17
18
19
20
21
 
# File 'lib/rusql/join.rb', line 13

def initialize(type, table, condition)
  raise Exception.new("Expected type to be one of #{ TYPES.map(&:to_s).join(",") }") unless TYPES.include?(type)
  raise TypeException.new(Table, table.class) unless table.is_a?(Table)
  raise TypeException.new(BasicCondition, condition.class) unless condition.is_a?(BasicCondition)

  @type = type
  @table = table
  @condition = condition
end

Instance Attribute Details

#type ⇒ Object (readonly)

Returns the value of attribute type.



3
4
5
 
# File 'lib/rusql/join.rb', line 3

def type
  @type
end

Instance Method Details

#to_s ⇒ Object 



23
24
25
 
# File 'lib/rusql/join.rb', line 23

def to_s
  "#{ self.type.to_s.upcase.gsub("_"," ") } #{self.table.to_s_for_aliasing} ON #{self.condition.to_s}"
end