Class: Conditioner::Condition

Inherits:
String
  • Object
show all
Defined in:
lib/conditioner/condition.rb

Instance Method Summary collapse

Constructor Details

#initialize(model, options = {}) {|_self| ... } ⇒ Condition

Returns a new instance of Condition.

Yields:

  • (_self)

Yield Parameters:



3
4
5
6
7
8
9
 
# File 'lib/conditioner/condition.rb', line 3

def initialize(model, options = {})
  @model = model
  @column_names = @model.column_names
  @result = []
  @first_condition = true
  yield self if block_given?
end

Instance Method Details

#_and(*args) ⇒ Object 



15
16
17
 
# File 'lib/conditioner/condition.rb', line 15

def _and(*args)
  add_condition('AND',*args)
end

#_or(*args) ⇒ Object 



23
24
25
 
# File 'lib/conditioner/condition.rb', line 23

def _or(*args)
  add_condition('OR',*args)
end

#add_condition(unit, *args) ⇒ Object 



27
28
29
30
31
32
33
34
35
36
37
38
 
# File 'lib/conditioner/condition.rb', line 27

def add_condition(unit,*args)
  @condition_called_flag= true
  result= []
  unless @first_condition
    result << ' ' << unit
  else
    @first_condition = false
  end
  result << @model.send(:sanitize_sql_for_conditions, *args)
  self << result.join(" ")
  self
end

#and(*args) ⇒ Object 



11
12
13
 
# File 'lib/conditioner/condition.rb', line 11

def and(*args)
  add_condition('AND',*args)
end

#extract(hash) ⇒ Object 



48
49
50
51
52
53
54
55
56
57
58
59
 
# File 'lib/conditioner/condition.rb', line 48

def extract(hash)
  hash.each do |k,v|
    @condition_called_flag = false
    field = k.to_s
    Conditioner.config.extract_rules.each do |rule|
      rule.call(field,v,self)
      break if @condition_called_flag
    end
    _and(field=>v) if is_field?(field) and !@condition_called_flag
  end
  self
end

#is_field?(field) ⇒ Boolean

Returns:

  • (Boolean) 


40
41
42
 
# File 'lib/conditioner/condition.rb', line 40

def is_field?(field)
  @column_names.include?(field)
end

#or(*args) ⇒ Object 



19
20
21
 
# File 'lib/conditioner/condition.rb', line 19

def or(*args)
  add_condition('OR',*args)
end

#with_table_name(field_name) ⇒ Object 



44
45
46
 
# File 'lib/conditioner/condition.rb', line 44

def with_table_name(field_name)
  %Q[#{@model.table_name}.#{field_name}]
end