Class: Audrey::Node::Hash

Inherits:
Collection show all
Defined in:
lib/audrey.rb

Overview

Audrey::Node::Hash

Instance Attribute Summary

Attributes inherited from Audrey::Node

#db, #pk

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Collection

#any?, #changed, #changed=, #child_pks, #clear, create_object, #length

Methods inherited from Audrey::Node

#alive?, #ancestors, #delete_object, #fco, #initialize, #isolate, #row

Constructor Details

This class inherits a constructor from Audrey::Node

Class Method Details

.new_object ⇒ Object

new_object



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# File 'lib/audrey.rb', line 906

def self.new_object
  return({})
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/audrey.rb', line 917

def [](key)
  # $tm.hrm
  # puts "@pk: #{@pk}"
  # puts "key: #{key}"
  
  read_check()
  hsh = @engine.row_hash_by_key(@pk, key)
  
  # if we got a hash
  if hsh
    return @db.object_from_row(hsh)
    
  # else return nil
  else
    return nil
  end
end

#[]=(key, child) ⇒ Object

[]=



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# File 'lib/audrey.rb', line 942

def []=(key, child)
  write_check()
  
  # test for checks outside of a transaction
  @db.checks_outside_transaction @fclass
  
  @engine.hash_element_delete @pk, key
  save_child child, 'key'=>key.to_s
  return child
end

#attach_to(hsh) ⇒ Object

attach_to



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# File 'lib/audrey.rb', line 1050

def attach_to(hsh)
  # hold on to original values
  orgs = hsh.clone
  
  # audrey()
  def hsh.audrey(p_node = nil)
    if p_node
      @audrey_node = p_node
    end
    
    # return
    return @audrey_node
  end
  
  # []
  def hsh.[](key)
    return @audrey_node[key]
  end
  
  # []=
  def hsh.[]=(key, child)
    return @audrey_node[key] = child
  end
  
  # each
  def hsh.each()
    if block_given?
      @audrey_node.each do |k, v|
        yield k, v
      end
    else
      return @audrey_node.each
    end
  end
  
  # length
  def hsh.length()
    return @audrey_node.length
  end
  
  # keys
  def hsh.keys()
    return @audrey_node.keys
  end
  
  # values
  def hsh.values()
    return @audrey_node.values
  end
  
  # delete
  def hsh.delete(*opts)
    return @audrey_node.delete(*opts)
  end
  
  # clear
  def hsh.clear()
    return @audrey_node.clear()
  end
  
  # has_key?
  def hsh.has_key?(key)
    return @audrey_node.has_key?(key)
  end
  
  # any?
  def hsh.any?()
    return @audrey_node.any?
  end
  
  # ==
  def hsh.==(*opts)
    return @audrey_node.==(*opts)
  end
  
  # <=
  def hsh.<=(*opts)
    return @audrey_node.<=(*opts)
  end
  
  # >=
  def hsh.>=(*opts)
    return @audrey_node.>=(*opts)
  end
  
  # ===
  def hsh.===(*opts)
    return @audrey_node.===(*opts)
  end
  
  # initial call to audrey object
  hsh.audrey self
  
  # save child elements
  orgs.each do |k, v|
    hsh[k] = v
  end
end

#delete(key) ⇒ Object

delete



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# File 'lib/audrey.rb', line 1019

def delete(key)
  write_check()
  record = @engine.hash_element_delete(@pk, key)
  
  # if record, return node, else return nil
  if record
    return @db.object_from_row(record)
  else
    return nil
  end
end

#each ⇒ Object

each



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# File 'lib/audrey.rb', line 992

def each
  read_check()
  rv = nil
  
  # loop through records
  @engine.hash_each(@pk) do |key, row|
    object = @db.object_from_row(row)
    
    if block_given?
      yield key, object
    else
      rv ||= []
      rv.push [key, object]
    end
  end
  
  # return
  return rv
end

#has_key?(key) ⇒ Boolean

has_key?

Returns:

  • (Boolean) 


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# File 'lib/audrey.rb', line 1038

def has_key?(key)
  read_check()
  return @engine.hash_has_key?(@pk, key)
end

#keys ⇒ Object

keys



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# File 'lib/audrey.rb', line 960

def keys
  read_check()
  return @engine.hash_keys(@pk)
end

#values ⇒ Object

values



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# File 'lib/audrey.rb', line 972

def values
  read_check()
  rv = []
  
  # loop through records
  @engine.hash_each(@pk) do |key, row|
    rv.push @db.object_from_row(row)
  end
  
  # return
  return rv
end