Class: Dusen::Query

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/dusen/query.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(initial_tokens = []) ⇒ Query

Returns a new instance of Query.



10
11
12
 
# File 'lib/dusen/query.rb', line 10

def initialize(initial_tokens = [])
  @tokens = initial_tokens
end

Instance Attribute Details

#tokens ⇒ Object (readonly)

Returns the value of attribute tokens.



8
9
10
 
# File 'lib/dusen/query.rb', line 8

def tokens
  @tokens
end

Instance Method Details

#<<(token) ⇒ Object 



14
15
16
 
# File 'lib/dusen/query.rb', line 14

def <<(token)
  tokens << token
end

#[](index) ⇒ Object 



18
19
20
 
# File 'lib/dusen/query.rb', line 18

def [](index)
  tokens[index]
end

#condensed ⇒ Object 



36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
 
# File 'lib/dusen/query.rb', line 36

def condensed
  include_texts = include.select(&:text?).collect(&:value)
  exclude_texts = exclude.select(&:text?).collect(&:value)
  field_tokens = tokens.reject(&:text?)

  condensed_tokens = field_tokens
  if include_texts.present?
    options = { :field => 'text', :value => include_texts, :exclude => false }
    condensed_tokens << Token.new(options)
  end
  if exclude_texts.present?
    options = { :field => 'text', :value => exclude_texts, :exclude => true }
    condensed_tokens << Token.new(options)
  end
  self.class.new(condensed_tokens)
end

#each(&block) ⇒ Object 



32
33
34
 
# File 'lib/dusen/query.rb', line 32

def each(&block)
  tokens.each(&block)
end

#exclude ⇒ Object 



57
58
59
 
# File 'lib/dusen/query.rb', line 57

def exclude
  self.class.new tokens.select(&:exclude?)
end

#include ⇒ Object 



53
54
55
 
# File 'lib/dusen/query.rb', line 53

def include
  self.class.new tokens.reject(&:exclude?)
end

#to_s ⇒ Object

def +(tokens)

tokens.each do |token|
  self << token
end

end



28
29
30
 
# File 'lib/dusen/query.rb', line 28

def to_s
  collect(&:to_s).join(" + ")
end