42 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			42 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| require "exceptions/record_not_found"
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| require "exceptions/invalid_record"
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| require "exceptions/invalid_command"
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| require "exceptions/invalid_privileges"
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| %w(delete insert list show update).each do |command_name|
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|   require_relative "helpers/#{command_name}_command"
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| end
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| 
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| module Connectors
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|   class Base
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| 
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|     # если хотим создавать индексы при старте приложения, нужно сначала создать коллекцию
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|     def initialize db
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|       names = db.collection_names
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|       unless names.include?(self.collection_name)
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|         db.create_collection(self.collection_name)
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|         puts "Collection '#{self.collection_name}' has been created"
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|       end
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|       self.collection = db.collection(self.collection_name)
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|     end
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| 
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|     def create_indexes
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| 
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|     end
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| 
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|     def collection_name
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|       raise "owerride me"
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|     end
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| 
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|     # Yes, we can implement connectors without attr_accessor, storing collection directly
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|     # in instance variable like
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|     # @collection = db.collection('users')
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|     #
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|     # But with latter approach included modules should know about instance variables of
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|     # base classes.
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|     # Also, debugging "No method error" is simplier than seeking missing instance var.
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|   private
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| 
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|     attr_accessor :collection
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|   end
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| end
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