Class: Scrubyt::ConstraintAdder

Inherits:
Object
  • Object
show all
Defined in:
lib/scrubyt/core/scraping/constraint_adder.rb

Overview

Utility class for adding constraints

Originally methods of Pattern - but since Pattern was already too heavy (and after all, adding a constraint (logically) does not belong to Pattern anyway) it was moved to this utility class. In pattern everything that begins with ensure_ is automatically dispatched here.

I will not document the functions since these are just forwarders; See the ‘real’ functions with their documentation in Scrubyt::Constraint.rb

Class Method Summary collapse

Class Method Details

.ensure_absence_of_ancestor_node(ancestor_node_name, attributes = []) ⇒ Object 



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# File 'lib/scrubyt/core/scraping/constraint_adder.rb', line 23

def self.ensure_absence_of_ancestor_node(ancestor_node_name, attributes=[])
  Constraint.add_ensure_absence_of_ancestor_node(ancestor_node_name, 
                                                     prepare_attributes(attributes))
end

.ensure_absence_of_attribute(attribute_hash) ⇒ Object 



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# File 'lib/scrubyt/core/scraping/constraint_adder.rb', line 32

def self.ensure_absence_of_attribute(attribute_hash)
  Constraint.add_ensure_absence_of_attribute(attribute_hash)
end

.ensure_presence_of_ancestor_node(ancestor_node_name, attributes = []) ⇒ Object 



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# File 'lib/scrubyt/core/scraping/constraint_adder.rb', line 18

def self.ensure_presence_of_ancestor_node(ancestor_node_name, attributes=[])
  Constraint.add_ensure_presence_of_ancestor_node(ancestor_node_name, 
                                                      prepare_attributes(attributes))
end

.ensure_presence_of_attribute(attribute_hash) ⇒ Object 



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# File 'lib/scrubyt/core/scraping/constraint_adder.rb', line 28

def self.ensure_presence_of_attribute(attribute_hash)
  Constraint.add_ensure_presence_of_attribute(attribute_hash)
end

.ensure_presence_of_pattern(ancestor_node_name) ⇒ Object 



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# File 'lib/scrubyt/core/scraping/constraint_adder.rb', line 14

def self.ensure_presence_of_pattern(ancestor_node_name)    
  Constraint.add_ensure_presence_of_pattern(ancestor_node_name)
end