Module: Believer::Columns::ClassMethods

Defined in:
lib/believer/columns.rb

Instance Method Summary collapse

Instance Method Details

#column(name, opts = {}) ⇒ Object

The column name must correspond with the Cassandra column name



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# File 'lib/believer/columns.rb', line 88

def column(name, opts = {})
  defaults = {
      :type => :string
  }
  options = defaults.merge(opts).merge(:name => name)

  columns[name] = Column.new(options)

  self.redefine_method(name) do
    read_attribute(name)
  end

  self.redefine_method("#{name}=") do |val|
    write_attribute(name, val)
  end
end

#columns ⇒ Object

Returns all columns on the model

Returns:



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# File 'lib/believer/columns.rb', line 82

def columns
  @columns ||= {}
end

#get_primary_key ⇒ Object 



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# File 'lib/believer/columns.rb', line 109

def get_primary_key
  @primary_key.dup
end

#has_compound_key? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/believer/columns.rb', line 127

def has_compound_key?
  @primary_key.size > 1
end

#partition_key ⇒ Object 



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# File 'lib/believer/columns.rb', line 117

def partition_key
  @primary_key.first.dup
end

#partition_keys ⇒ Object 



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# File 'lib/believer/columns.rb', line 121

def partition_keys
  part_key = partition_key
  return part_key.dup if part_key.is_a?(Enumerable)
  [part_key]
end

#primary_key(*cols) ⇒ Object 



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# File 'lib/believer/columns.rb', line 105

def primary_key(*cols)
  @primary_key = *cols
end

#primary_key_columns ⇒ Object 



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# File 'lib/believer/columns.rb', line 113

def primary_key_columns
  @primary_key.flatten
end