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Apply monkey patching only after loading a MySQL adapter.

Akinori MUSHA 10 年 前
親
7c6224d7eb
コミット
a621a19f2f
共有3 個のファイルを変更した、127 個の追加 と 116 個の削除を含む
差分情報を表示
  1. 1 3
      config/initializers/ar_mysql_column_charset.rb
  2. 8 113
      lib/ar_mysql_column_charset.rb
  3. 118 0
      lib/ar_mysql_column_charset/main.rb

+ 1 - 3
config/initializers/ar_mysql_column_charset.rb
ファイルの表示 

@@ -1,3 +1 @@
1 
-ActiveSupport.on_load :active_record do
2 
-  require 'ar_mysql_column_charset'
3 
-end
1 
+require 'ar_mysql_column_charset'

+ 8 - 113
lib/ar_mysql_column_charset.rb
ファイルの表示 

@@ -1,121 +1,16 @@
1 
-require 'active_record'
2 
-
3 1 
 # Module#prepend support for Ruby 1.9
4 2 
 require 'prepend' unless Module.method_defined?(:prepend)
5 3
6 
-module ActiveRecord::ConnectionAdapters
7 
-  class ColumnDefinition
8 
-    module CharsetSupport
9 
-      attr_accessor :charset, :collation
10 
-    end
11 
-
12 
-    prepend CharsetSupport
13 
-  end
14 
-
15 
-  class TableDefinition
16 
-    module CharsetSupport
17 
-      def new_column_definition(name, type, options)
18 
-        column = super
19 
-        column.charset   = options[:charset]
20 
-        column.collation = options[:collation]
21 
-        column
22 
-      end
23 
-    end
24 
-
25 
-    prepend CharsetSupport
26 
-  end
27 
-
28 
-  class AbstractMysqlAdapter
29 
-    module CharsetSupport
30 
-      def prepare_column_options(column, types)
31 
-        spec = super
32 
-        spec[:charset]   = column.charset.inspect if column.charset && column.charset != charset
33 
-        spec[:collation] = column.collation.inspect if column.collation && column.collation != collation
34 
-        spec
35 
-      end
4 
+require 'active_support'
36 5
37 
-      def migration_keys
38 
-        super + [:charset, :collation]
39 
-      end
40 
-
41 
-      def utf8mb4_supported?
42 
-        if @utf8mb4_supported.nil?
43 
-          @utf8mb4_supported = !select("show character set like 'utf8mb4'").empty?
44 
-        else
45 
-          @utf8mb4_supported
6 
+ActiveSupport.on_load :active_record do
7 
+  class << ActiveRecord::Base
8 
+    def establish_connection(spec = nil)
9 
+      super.tap { |ret|
10 
+        if /mysql/i === connection.adapter_name
11 
+          require 'ar_mysql_column_charset/main'
46 12 
         end
47 
-      end
48 
-
49 
-      def charset_collation(charset, collation)
50 
-        [charset, collation].map { |name|
51 
-          case name
52 
-          when nil
53 
-            nil
54 
-          when /\A(utf8mb4(_\w*)?)\z/
55 
-            if utf8mb4_supported?
56 
-              $1
57 
-            else
58 
-              "utf8#{$2}"
59 
-            end
60 
-          else
61 
-            name.to_s
62 
-          end
63 
-        }
64 
-      end
65 
-
66 
-      def create_database(name, options = {})
67 
-        # utf8mb4 is used in column definitions; use utf8 for
68 
-        # databases.
69 
-        [:charset, :collation].each { |key|
70 
-          case options[key]
71 
-          when /\A(utf8mb4(_\w*)?)\z/
72 
-            options = options.merge(key => "utf8#{$2}")
73 
-          end
74 
-        }
75 
-        super(name, options)
76 
-      end
77 
-    end
78 
-
79 
-    prepend CharsetSupport
80 
-
81 
-    class SchemaCreation
82 
-      module CharsetSupport
83 
-        def column_options(o)
84 
-          column_options = super
85 
-          column_options[:charset]   = o.charset unless o.charset.nil?
86 
-          column_options[:collation] = o.collation unless o.collation.nil?
87 
-          column_options
88 
-        end
89 
-
90 
-        def add_column_options!(sql, options)
91 
-          charset, collation = @conn.charset_collation(options[:charset], options[:collation])
92 
-
93 
-          if charset
94 
-            sql << " CHARACTER SET #{charset}"
95 
-          end
96 
-
97 
-          if collation
98 
-            sql << " COLLATE #{collation}"
99 
-          end
100 
-
101 
-          super
102 
-        end
103 
-      end
104 
-
105 
-      prepend CharsetSupport
106 
-    end
107 
-
108 
-    class Column
109 
-      module CharsetSupport
110 
-        attr_reader :charset
111 
-
112 
-        def initialize(*args)
113 
-          super
114 
-          @charset = @collation[/\A[^_]+/] unless @collation.nil?
115 
-        end
116 
-      end
117 
-
118 
-      prepend CharsetSupport
13 
+      }
119 14 
     end
120 15 
   end
121 16 
 end

+ 118 - 0
lib/ar_mysql_column_charset/main.rb
ファイルの表示 

@@ -0,0 +1,118 @@
1 
+raise "Do not directly load this library." unless defined?(ActiveRecord::ConnectionAdapters::AbstractMysqlAdapter)
2 
+
3 
+module ActiveRecord::ConnectionAdapters
4 
+  class ColumnDefinition
5 
+    module CharsetSupport
6 
+      attr_accessor :charset, :collation
7 
+    end
8 
+
9 
+    prepend CharsetSupport
10 
+  end
11 
+
12 
+  class TableDefinition
13 
+    module CharsetSupport
14 
+      def new_column_definition(name, type, options)
15 
+        column = super
16 
+        column.charset   = options[:charset]
17 
+        column.collation = options[:collation]
18 
+        column
19 
+      end
20 
+    end
21 
+
22 
+    prepend CharsetSupport
23 
+  end
24 
+
25 
+  class AbstractMysqlAdapter
26 
+    module CharsetSupport
27 
+      def prepare_column_options(column, types)
28 
+        spec = super
29 
+        spec[:charset]   = column.charset.inspect if column.charset && column.charset != charset
30 
+        spec[:collation] = column.collation.inspect if column.collation && column.collation != collation
31 
+        spec
32 
+      end
33 
+
34 
+      def migration_keys
35 
+        super + [:charset, :collation]
36 
+      end
37 
+
38 
+      def utf8mb4_supported?
39 
+        if @utf8mb4_supported.nil?
40 
+          @utf8mb4_supported = !select("show character set like 'utf8mb4'").empty?
41 
+        else
42 
+          @utf8mb4_supported
43 
+        end
44 
+      end
45 
+
46 
+      def charset_collation(charset, collation)
47 
+        [charset, collation].map { |name|
48 
+          case name
49 
+          when nil
50 
+            nil
51 
+          when /\A(utf8mb4(_\w*)?)\z/
52 
+            if utf8mb4_supported?
53 
+              $1
54 
+            else
55 
+              "utf8#{$2}"
56 
+            end
57 
+          else
58 
+            name.to_s
59 
+          end
60 
+        }
61 
+      end
62 
+
63 
+      def create_database(name, options = {})
64 
+        # utf8mb4 is used in column definitions; use utf8 for
65 
+        # databases.
66 
+        [:charset, :collation].each { |key|
67 
+          case options[key]
68 
+          when /\A(utf8mb4(_\w*)?)\z/
69 
+            options = options.merge(key => "utf8#{$2}")
70 
+          end
71 
+        }
72 
+        super(name, options)
73 
+      end
74 
+    end
75 
+
76 
+    prepend CharsetSupport
77 
+
78 
+    class SchemaCreation
79 
+      module CharsetSupport
80 
+        def column_options(o)
81 
+          column_options = super
82 
+          column_options[:charset]   = o.charset unless o.charset.nil?
83 
+          column_options[:collation] = o.collation unless o.collation.nil?
84 
+          column_options
85 
+        end
86 
+
87 
+        def add_column_options!(sql, options)
88 
+          charset, collation = @conn.charset_collation(options[:charset], options[:collation])
89 
+
90 
+          if charset
91 
+            sql << " CHARACTER SET #{charset}"
92 
+          end
93 
+
94 
+          if collation
95 
+            sql << " COLLATE #{collation}"
96 
+          end
97 
+
98 
+          super
99 
+        end
100 
+      end
101 
+
102 
+      prepend CharsetSupport
103 
+    end
104 
+
105 
+    class Column
106 
+      module CharsetSupport
107 
+        attr_reader :charset
108 
+
109 
+        def initialize(*args)
110 
+          super
111 
+          @charset = @collation[/\A[^_]+/] unless @collation.nil?
112 
+        end
113 
+      end
114 
+
115 
+      prepend CharsetSupport
116 
+    end
117 
+  end
118 
+end