ArJdbc::MySQL::Column

    # File lib/arjdbc/mysql/adapter.rb, line 18
18:       def extract_default(default)
19:         if sql_type =~ /blob/ || type == :text
20:           if default.blank?
21:             return null ? nil : ''
22:           else
23:             raise ArgumentError, "#{type} columns cannot have a default value: #{default.inspect}"
24:           end
25:         elsif missing_default_forged_as_empty_string?(default)
26:           nil
27:         else
28:           super
29:         end
30:       end

    # File lib/arjdbc/mysql/adapter.rb, line 43
43:       def extract_limit(sql_type)
44:         case sql_type
45:         when /blob|text/
46:           case sql_type
47:           when /tiny/
48:             255
49:           when /medium/
50:             16777215
51:           when /long/
52:             2147483647 # mysql only allows 2^31-1, not 2^32-1, somewhat inconsistently with the tiny/medium/normal cases
53:           else
54:             nil # we could return 65535 here, but we leave it undecorated by default
55:           end
56:         when /^bigint/;    8
57:         when /^int/;       4
58:         when /^mediumint/; 3
59:         when /^smallint/;  2
60:         when /^tinyint/;   1
61:         when /^(datetime|date|timestamp)/
62:           nil
63:         else
64:           super
65:         end
66:       end

    # File lib/arjdbc/mysql/adapter.rb, line 32
32:       def has_default?
33:         return false if sql_type =~ /blob/ || type == :text #mysql forbids defaults on blob and text columns
34:         super
35:       end

    # File lib/arjdbc/mysql/adapter.rb, line 75
75:       def missing_default_forged_as_empty_string?(default)
76:         type != :string && !null && default == ''
77:       end

    # File lib/arjdbc/mysql/adapter.rb, line 37
37:       def simplified_type(field_type)
38:         return :boolean if field_type =~ /tinyint\(1\)|bit/
39:         return :string  if field_type =~ /enum/
40:         super
41:       end