Class: E

Inherits:
ActiveOrient::Model show all
Defined in:
lib/model/edge.rb

Overview

to do instead of creating a class, use a module which is included on startup then, after specifying the namespace and before autoaccolating the database-classes create the proper E-Base-class and include this stuff

Constant Summary

Constants included from OrientDB

OrientDB::DocumentDatabase, OrientDB::DocumentDatabasePool, OrientDB::DocumentDatabasePooled, OrientDB::GraphDatabase, OrientDB::IndexType, OrientDB::OClassImpl, OrientDB::OTraverse, OrientDB::PropertyImpl, OrientDB::RemoteStorage, OrientDB::SQLCommand, OrientDB::SQLSynchQuery, OrientDB::Schema, OrientDB::SchemaProxy, OrientDB::SchemaType, OrientDB::ServerAdmin, OrientDB::User, OrientDB::UsingJava

Instance Attribute Summary

Attributes inherited from ActiveOrient::Model

#metadata

Attributes inherited from ActiveOrient::Base

#metadata

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ActiveOrient::Model

autoload_object, delete_class, #document, #to_ary

Methods included from ModelClass

#add_edge_link, #all, #alter_property, #classname, #count, #create, #create_index, #create_properties, #create_property, #custom_where, #delete_property, #delete_record, #delete_records, #first, #get, #get_model_class, #get_properties, #get_records, #last, #match, #naming_convention, #orientdb_class, #print_class_properties, #query_database, #require_model_file, #update_all, #update_or_create_records, #upsert, #where

Methods included from ModelRecord

#add_item_to_property, classname, #find, #from_orient, #increment_version, #is_edge?, #method_missing, #query, #reload!, #remove_item_from_property, #remove_position_from_property, #rid, #rrid, #save, #set_item_to_property, #to_or, #update, #update_attribute, #update_attributes, #update_item_property, #version, #version=

Methods included from ActiveOrient::BaseProperties

#==, #content_attributes, #default_attributes, #set_attribute_defaults, #to_human, #update_missing

Methods inherited from ActiveOrient::Base

#[], #[]=, attr_accessible, attr_protected, #attributes, #attributes=, belongs_to, display_rid, #document, get_rid, has_many, has_one, #initialize, #my_metadata, remove_rid, reset_rid_store, serialize, store_rid, #to_model, #update_attribute

Constructor Details

This class inherits a constructor from ActiveOrient::Base

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class ModelRecord

Class Method Details

.create(**keyword_arguments) ⇒ Object 



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# File 'lib/model/edge.rb', line 29

def create  **keyword_arguments
  new_edge = db.create_edge self, **keyword_arguments
  new_edge =  new_edge.pop if new_edge.is_a?( Array) && new_edge.size == 1
 #   to.reload! if to.is_a? ActiveOrient::Model
 #   from.reload! if from.is_a? ActiveOrient::Model
  # vertices must be reloaded

  new_edge # returns the created edge (or an array of created edges
end

.delete(where:) ⇒ Object

Edge#delete fires a “delete edge” command to the database. The where statement can be empty ( “” or {}“), then all edges are removed

The rid-cache is reseted, too



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# File 'lib/model/edge.rb', line 45

def delete where: 
  db.execute { "delete edge #{ref_name} #{db.compose_where(where)}" }
  reset_rid_store
end

.uniq_index ⇒ Object

establish contrains on Edges

Edges are uniq!

Creates individual indices for child-classes if applied to the class itself.



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# File 'lib/model/edge.rb', line 14

def  uniq_index
  create_property  :in,  type: :link, linked_class: :V
  create_property  :out, type: :link, linked_class: :V
  create_index "#{ref_name}_idx", on: [ :in, :out ]
end

Instance Method Details

#remove ⇒ Object

remove works on record-level



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# File 'lib/model/edge.rb', line 52

def remove
  db.delete_edge self
end