Method: Sequel::Model::InstanceMethods#set_fields

Defined in:
lib/sequel/model/base.rb

#set_fields(hash, fields, opts = nil) ⇒ Object

For each of the fields in the given array fields, call the setter method with the value of that hash entry for the field. Returns self.

You can provide an options hash, with the following options currently respected:

:missing

Can be set to :skip to skip missing entries or :raise to raise an Error for missing entries. The default behavior is not to check for missing entries, in which case the default value is used. To be friendly with most web frameworks, the missing check will also check for the string version of the argument in the hash if given a symbol.

Examples:

artist.set_fields({:name=>'Jim'}, [:name])
artist.name # => 'Jim'

artist.set_fields({:hometown=>'LA'}, [:name])
artist.name # => nil
artist.hometown # => 'Sac'

artist.name # => 'Jim'
artist.set_fields({}, [:name], :missing=>:skip)
artist.name # => 'Jim'

artist.name # => 'Jim'
artist.set_fields({}, [:name], :missing=>:raise)
# Sequel::Error raised



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# File 'lib/sequel/model/base.rb', line 1508

def set_fields(hash, fields, opts=nil)
  opts = if opts
    model.default_set_fields_options.merge(opts)
  else
    model.default_set_fields_options
  end

  case opts[:missing]
  when :skip
    fields.each do |f|
      if hash.has_key?(f) 
        send("#{f}=", hash[f])
      elsif f.is_a?(Symbol) && hash.has_key?(sf = f.to_s)
        send("#{sf}=", hash[sf])
      end
    end
  when :raise
    fields.each do |f|
      if hash.has_key?(f)
        send("#{f}=", hash[f])
      elsif f.is_a?(Symbol) && hash.has_key?(sf = f.to_s)
        send("#{sf}=", hash[sf])
      else
        raise(Sequel::Error, "missing field in hash: #{f.inspect} not in #{hash.inspect}")
      end
    end
  else
    fields.each{|f| send("#{f}=", hash[f])}
  end
  self
end