Class: CalculableAttrs::ModelCalculableAttrsScope

Inherits:
Object
  • Object
show all
Defined in:
lib/calculable_attrs/model_calculable_attrs_scope.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(model) ⇒ ModelCalculableAttrsScope

Returns a new instance of ModelCalculableAttrsScope.



4
5
6
7
8
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 4

def initialize(model)
  @model = model
  @attrs = []
  @ids = []
end

Instance Attribute Details

#attrs ⇒ Object (readonly)

Returns the value of attribute attrs.



2
3
4
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 2

def attrs
  @attrs
end

#ids ⇒ Object (readonly)

Returns the value of attribute ids.



2
3
4
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 2

def ids
  @ids
end

#model ⇒ Object (readonly)

Returns the value of attribute model.



2
3
4
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 2

def model
  @model
end

Instance Method Details

#add_all_attrs ⇒ Object 



23
24
25
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 23

def add_all_attrs
  @attrs = model.calculable_attrs
end

#add_attr(attribute) ⇒ Object 



18
19
20
21
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 18

def add_attr(attribute)
  attribute = attribute.to_sym
  @attrs.push(attribute) unless @attrs.include?(attribute)
end

#add_attrs(attrs) ⇒ Object 



10
11
12
13
14
15
16
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 10

def add_attrs(attrs)
  if attrs == true || attrs == [ true ]
    add_all_attrs
  else
    attrs.each { |attr| add_attr(attr) }
  end
end

#add_id(id) ⇒ Object 



31
32
33
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 31

def add_id(id)
  @ids.push(id.to_i)
end

#calculate ⇒ Object 



35
36
37
38
39
40
41
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 35

def calculate
  @calculable_attrs_values = nil
  calculators_to_use.each do |calculator|
    calculated_values = calculator.calculate_many(calculator.attrs & @attrs, ids)
    merge_calculated_values(calculated_values)
  end
end

#calculated_attrs_values(id) ⇒ Object 



43
44
45
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 43

def calculated_attrs_values(id)
  @calculable_attrs_values[id.to_i]
end

#calculators_to_use ⇒ Object 



48
49
50
51
52
53
54
55
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 48

def calculators_to_use
  calculators_to_use = []
  @attrs.each do |attribute|
    calculator = @model.calculable_attrs_calculators[attribute]
    calculators_to_use.push(calculator) unless calculators_to_use.include?(calculator)
  end
  calculators_to_use
end

#has_attrs ⇒ Object 



27
28
29
 
# File 'lib/calculable_attrs/model_calculable_attrs_scope.rb', line 27

def has_attrs
  @attrs.size > 0
end