Class: Pincers::Support::Query

Inherits:
Object
  • Object
show all
Defined in:
lib/pincers/support/query.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(_backend, _lang, _query, _limit) ⇒ Query

Returns a new instance of Query.



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# File 'lib/pincers/support/query.rb', line 6

def initialize(_backend, _lang, _query, _limit)
  @backend = _backend
  @lang = _lang
  @query = _query
  @limit = _limit
end

Instance Attribute Details

#lang ⇒ Object (readonly)

Returns the value of attribute lang.



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# File 'lib/pincers/support/query.rb', line 4

def lang
  @lang
end

#limit ⇒ Object (readonly)

Returns the value of attribute limit.



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# File 'lib/pincers/support/query.rb', line 4

def limit
  @limit
end

#query ⇒ Object (readonly)

Returns the value of attribute query.



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# File 'lib/pincers/support/query.rb', line 4

def query
  @query
end

Instance Method Details

#execute(_elements, _force_limit = nil) ⇒ Object 



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# File 'lib/pincers/support/query.rb', line 13

def execute(_elements, _force_limit=nil)
  fun = case @lang
  when :xpath then :search_by_xpath
  else :search_by_css end

  explode_elements _elements, fun, _force_limit || @limit
end

#explode_elements(_elements, _fun, _limit) ⇒ Object 



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# File 'lib/pincers/support/query.rb', line 21

def explode_elements(_elements, _fun, _limit)
  _elements.inject([]) do |r, element|
    limit = _limit.nil? ? nil : _limit - r.count
    r = r + @backend.send(_fun, element, @query, limit)
    break r if !_limit.nil? && r.length >= _limit
    next r
  end
end