Module: ArPerfToolkit::Insert

Defined in:
lib/insert.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object

:nodoc:



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# File 'lib/insert.rb', line 20

def self.included(base) #:nodoc:
  base.extend(ClassMethods)
  
  #alias methods
  base.class_eval do
    alias_method_chain_arperf(%w(save update save! create_or_update))
    class << self
       alias_method_chain_arperf(%w(create create!))
    end
  end
end

Instance Method Details

#create_or_update_x(options = {}) ⇒ Object 



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# File 'lib/insert.rb', line 93

def create_or_update_x options={}
  return false if callback(:before_save) == false
  options[:keywords] = 'IGNORE' if options.delete(:ignore).kind_of?(TrueClass)
  result = 
    if new_record? then 
      create_x(options) 
    else 
      options.delete(:duplicate) 
      update_x(options) 
    end
  callback(:after_save)
  result
end

#create_x(options = {}) ⇒ Object

Creates a new record with values matching those of the instance attributes.



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# File 'lib/insert.rb', line 126

def create_x options={}
  return false if callback(:before_create) == false
  insert_with_timestamps(true)

  if self.id.nil? && connection.prefetch_primary_key?(self.class.table_name)
    self.id = connection.next_sequence_value(self.class.sequence_name)
  end
  
  options[:command]||='INSERT'
  sql = self.class.construct_sql(options) do |sql, options| 
    sql << "INTO #{self.class.table_name} (#{quoted_column_names.join(', ')}) "
    sql << "VALUES(#{attributes_with_quotes.values.join(', ')})"
  end
  
  self.id = connection.insert(sql, "#{self.class.name} CreateX ", 
                  self.class.primary_key, self.id, self.class.sequence_name)

  @new_record = false
  
  callback(:after_create)   
  return self.id != 0
end

#replace_x(options = {}) ⇒ Object

Replace deletes the existing duplicate if it exists then adds this



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# File 'lib/insert.rb', line 151

def replace_x options={}
  create_x(options.merge(:command => 'REPLACE'))
end

#save_ignore ⇒ Object

ClassMethods



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# File 'lib/insert.rb', line 66

def save_ignore
  save_x :keywords => 'IGNORE'
end

#save_ignore! ⇒ Object 



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# File 'lib/insert.rb', line 70

def save_ignore!
  save_ignore || raise(ActiveRecord::RecordNotSaved)
end

#save_x(options = {}) ⇒ Object 



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# File 'lib/insert.rb', line 74

def save_x(options={})
  #invoke save_with_validation if the argument is not a hash
  return save_without_arperf_options(options) unless options.is_a?(Hash)
  
  perform_validation = options.delete(:perform_validation)
  if (perform_validation.is_a?(FalseClass)) || valid? 
    raise ActiveRecord::ReadOnlyRecord if readonly?
    create_or_update_x options
  else
    raise ActiveRecord::RecordInvalid.new(self) if perform_validation == :exception
    false
  end
end

#save_x!(options = {}) ⇒ Object 



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# File 'lib/insert.rb', line 88

def save_x!(options={})
  options[:perform_validation] = :exception
  save_x(options) || raise(ActiveRecord::RecordNotSaved)
end

#update_x(options = {}) ⇒ Object

Updates the associated record with values matching those of the instance attributes.

Raises:

  • (ArgumentError) 


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# File 'lib/insert.rb', line 110

def update_x options={}
  return false if callback(:before_update) == false
  insert_with_timestamps(false)
  options[:command]||='UPDATE'
  raise(ArgumentError, "Unknown key: duplicate") if options[:duplicate]
  sql = self.class.construct_sql(options) do |sql, options|  
    sql << "#{self.class.table_name} "
    sql << "SET #{quoted_comma_pair_list(connection, attributes_with_quotes(false))} " +
           "WHERE (#{self.class.primary_key} = #{quote_value(id)}) "      
  end
  connection.update(sql, "#{self.class.name} UpdateX")
  callback(:after_update)
  return true
end