Class: Activecube::Query::Selector

Inherits:
Item
  • Object
show all
Defined in:
lib/activecube/query/selector.rb

Direct Known Subclasses

CombineSelector

Defined Under Namespace

Classes: CombineSelector, Operator

Constant Summary collapse

OPERATORS = 
['eq','not_eq','gt','lt','gteq','lteq','in','not_in','between']
ARRAY_OPERATORS = 
['in','not_in']
ARRAY_OPERATOR_MAP = 
{
    'eq' => 'in',
    'not_eq' => 'not_in'
}

Instance Attribute Summary collapse

Attributes inherited from Item

#cube, #definition, #key

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Item

#required_column_names

Constructor Details

#initialize(cube, key, definition, operator = nil) ⇒ Selector

Returns a new instance of Selector.



75
76
77
78
 
# File 'lib/activecube/query/selector.rb', line 75

def initialize cube, key, definition, operator = nil
  super cube, key, definition
  @operator = operator
end

Instance Attribute Details

#operator ⇒ Object (readonly)

Returns the value of attribute operator.



74
75
76
 
# File 'lib/activecube/query/selector.rb', line 74

def operator
  @operator
end

Class Method Details

.and(selectors) ⇒ Object 



143
144
145
 
# File 'lib/activecube/query/selector.rb', line 143

def self.and(selectors)
  CombineSelector.new(selectors, Operator.new(:and, nil))
end

.or(selectors) ⇒ Object 



139
140
141
 
# File 'lib/activecube/query/selector.rb', line 139

def self.or(selectors)
  CombineSelector.new(selectors, Operator.new(:or, nil) )
end

Instance Method Details

#==(other) ⇒ Object 



127
128
129
 
# File 'lib/activecube/query/selector.rb', line 127

def == other
  eql? other
end

#alias!(new_key) ⇒ Object 



108
109
110
 
# File 'lib/activecube/query/selector.rb', line 108

def alias! new_key
  self.class.new cube, new_key, definition, operator
end

#append_query(model, cube_query, table, query) ⇒ Object 



112
113
114
 
# File 'lib/activecube/query/selector.rb', line 112

def append_query model, cube_query, table, query
  query.where(expression model, table, cube_query)
end

#eql?(other) ⇒ Boolean

Returns:

  • (Boolean) 


120
121
122
123
124
125
 
# File 'lib/activecube/query/selector.rb', line 120

def eql?(other)
  return other.kind_of?(Selector) &&
      self.cube==other.cube &&
      self.operator == other.operator &&
      self.definition.class == other.definition.class
end

#expression(model, arel_table, cube_query) ⇒ Object 



116
117
118
 
# File 'lib/activecube/query/selector.rb', line 116

def expression model, arel_table, cube_query
  definition.expression model, arel_table, self, cube_query
end

#hash ⇒ Object 



131
132
133
 
# File 'lib/activecube/query/selector.rb', line 131

def hash
  self.definition.class.hash + self.operator.hash
end

#to_s ⇒ Object 



135
136
137
 
# File 'lib/activecube/query/selector.rb', line 135

def to_s
  "Selector #{super}"
end