@@ -2,16 +2,24 @@ DESCRIPTION =========== -Helpers for migrations of ActiveRecord for dealing with foreign keys and primary keys. +Helpers for migrations of ActiveRecord for dealing with foreign keys and primary keys and more stuff. FEATURES ======== * **foreign keys** - * foreign_key(table, field, referenced_table, referenced_field, on_cascade) - * drop_foreign_key(table, field) + * `foreign_key(table, field, referenced_table, referenced_field, on_cascade)` + * `drop_foreign_key(table, field)` * **primary keys** - * primary_key(table, field) + * `primary_key(table, field)` + * **repair_tables** + * `repair_tables :users, :clients` + * `repair_tables` (all tables) + * **optimize_tables** + * `optimize_tables :readings, :jobs` + * `optimize_tables` (all tables) + * **each_table** + * Yields each table name Examples ======== @@ -33,6 +41,15 @@ Typical use: end foreign_key :users, :profile_id, :profiles + + repair_tables + optimize_tables + + each_table do |name| + say_with_time "Some operation with #{name}" do + #execute "..... #{name}" + end + end end def self.down README.markdown @@ -31,6 +31,41 @@ module MigrationConstraintHelpers execute "ALTER TABLE #{table} ADD PRIMARY KEY(#{field_list(field)})" end + # Execute REPAIR TABLE in each table given as parameter or in all of them + # if none is indicated + # + # tables: list of tables + def repair_tables(*tables) + ActiveRecord::Migration.say("Reparing tables...", true) + each_table do |table| + if tables.empty? || tables.include?(table.to_s) + ActiveRecord::Migration.say(table, true) + execute "REPAIR TABLE #{table}" + end + end + end + + # Execute OPTIMIZE TABLE in each table given as parameter or in all of them + # if none is indicated + # + # tables: list of tables + def optimize_tables(*tables) + each_table do |table| + if tables.empty? || tables.include?(table.to_s) + ActiveRecord::Migration.say(table, true) + execute "OPTIMIZE TABLE #{table}" + end + end + end + + # Yields for each table defined in the database + # The name of the table is given as parameter + def each_table + execute("SHOW TABLES").each do |a| + yield a.values.first + end + end + private # Creates a constraint name for table and field given as parameters @@ -48,4 +83,5 @@ module MigrationConstraintHelpers def field_list_name(fields) fields.is_a?(Array) ? fields.join('_') : fields end + end lib/migration_helper.rb 0da23149a371f081774daed6e5f5ac32e810323b Jesús García Sáez blaxter@gmail.com http://github.com/blaxter/migration_helpers/commit/4715e3e05898836503a2817842dc0e65114d6a3a 4715e3e05898836503a2817842dc0e65114d6a3a 2009-10-05T10:32:25-07:00 2009-10-05T10:32:25-07:00 add repair_tables, optimize_table methods Also a helper each_table{|table_name| ... } method has been added b82b69c297dc4d870159814ba8a0e8a2e47ae005 Jesús García Sáez blaxter@gmail.com