Class: SimpleMaster::Master::Column::EnumColumn

Inherits:
SimpleMaster::Master::Column show all
Defined in:
lib/simple_master/master/column/enum_column.rb

Instance Attribute Summary collapse

Attributes inherited from SimpleMaster::Master::Column

#group_key, #options

Instance Method Summary collapse

Methods inherited from SimpleMaster::Master::Column

column_type, column_types, #db_column_name, inherited, register

Constructor Details

#initialize(name, options) ⇒ EnumColumn

Returns a new instance of EnumColumn.



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# File 'lib/simple_master/master/column/enum_column.rb', line 13

def initialize(name, options)
  @enum = options[:enum]
  @const_name = "ENUM_FOR_#{name.upcase}"
  @prefix = "#{options[:prefix] == true ? name : options[:prefix]}_" if options[:prefix]
  @suffix = "_#{options[:suffix] == true ? name : options[:suffix]}" if options[:suffix]

  super
end

Instance Attribute Details

#const_name ⇒ Object (readonly)

Returns the value of attribute const_name.



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# File 'lib/simple_master/master/column/enum_column.rb', line 9

def const_name
  @const_name
end

#enum ⇒ Object (readonly)

Returns the value of attribute enum.



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# File 'lib/simple_master/master/column/enum_column.rb', line 8

def enum
  @enum
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/simple_master/master/column/enum_column.rb', line 7

def name
  @name
end

#prefix ⇒ Object (readonly)

Returns the value of attribute prefix.



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# File 'lib/simple_master/master/column/enum_column.rb', line 10

def prefix
  @prefix
end

#suffix ⇒ Object (readonly)

Returns the value of attribute suffix.



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# File 'lib/simple_master/master/column/enum_column.rb', line 11

def suffix
  @suffix
end

Instance Method Details

#init(master_class, for_test = false) ⇒ Object 



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# File 'lib/simple_master/master/column/enum_column.rb', line 22

def init(master_class, for_test = false)
  super

  master_class.simple_master_module.const_set(const_name, enum.freeze) unless master_class.const_defined?(const_name)

  master_class.class_eval "    def self.\#{name.to_s.pluralize}\n      \#{const_name}\n    end\n  RUBY\n\n  master_class.simple_master_module.class_eval <<-RUBY, __FILE__, __LINE__ + 1\n    def \#{name}_to_enum(value)\n      case value\n      when Integer\n        return \#{const_name}.key(value)\n      when String\n        sym = value.to_sym\n        return sym if \#{const_name}.key?(sym)\n\n        int_val = Integer(value, exception: false)\n        if int_val\n          result = \#{const_name}.key(int_val)\n          return result if result\n        end\n\n        fail \"Unsupported type \\\#{value.inspect}.\"\n      when Symbol, NilClass\n        return value\n      else\n        fail \"Unsupported type \\\#{value.inspect}.\"\n      end\n    end\n\n    def \#{name.to_s.pluralize}\n      \#{const_name}\n    end\n\n    def \#{name}_before_type_cast\n      \#{const_name}[\#{name}]\n    end\n  RUBY\n\n  enum.each_key do |enum_name|\n    # Skip generating helpers for names that start with a digit\n    next if enum_name.match?(/\\A\\d/) && prefix.nil?\n    master_class.simple_master_module.class_eval <<-RUBY, __FILE__, __LINE__ + 1\n        def \#{prefix}\#{enum_name}\#{suffix}?\n          \#{name} == :\#{enum_name}\n        end\n    RUBY\n  end\nend\n", __FILE__, __LINE__ + 1