Class: MySQLExpectations::MySQL

Inherits:
Object
  • Object
show all
Defined in:
lib/mysql_expectations/mysql.rb

Overview

The database_structure_file should be an XML file resulting from the mysqldump command:

mysqldump –xml –no-data –all-databases \

--host=#{env.host} --port=#{env.port} \
--user=#{env.username}

Instance Method Summary collapse

Constructor Details

#initialize(source) ⇒ MySQL

Returns a new instance of MySQL.



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# File 'lib/mysql_expectations/mysql.rb', line 17

def initialize(source)
  @doc = REXML::Document.new(source)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_sym, *arguments, &block) ⇒ Object 



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# File 'lib/mysql_expectations/mysql.rb', line 43

def method_missing(method_sym, *arguments, &block)
  if arguments.empty? && block.nil?
    database_name = method_sym.to_s
    return database(database_name) if database?(database_name)
  end
  super
end

Instance Method Details

#database(name) ⇒ Object 



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# File 'lib/mysql_expectations/mysql.rb', line 28

def database(name)
  query = "mysqldump/database[@name='#{name}']"
  database_element = @doc.elements[query]
  Database.new database_element if database_element
end

#database?(name) ⇒ Boolean Also known as: has_database?

Returns:

  • (Boolean) 


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# File 'lib/mysql_expectations/mysql.rb', line 21

def database?(name)
  query = "mysqldump/database[@name='#{name}']"
  !@doc.elements[query].nil?
end

#databases ⇒ Object 



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# File 'lib/mysql_expectations/mysql.rb', line 34

def databases
  query = 'mysqldump/database'
  databases = []
  @doc.elements.each(query) do |database_element|
    databases << Database.new(database_element)
  end
  databases
end

#respond_to_missing?(method) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mysql_expectations/mysql.rb', line 51

def respond_to_missing?(method, *)
  database?(method.to_s) || super
end