--- has_and_belongs_to_many version 2 Tue Sep 05 09:46:08 +0000 2006
+++ has_and_belongs_to_many version 3 Thu Sep 07 17:44:54 +0000 2006
@@ -1,59 +1,43 @@
-Options for has_and_belongs_to_many
-
-:class_name - specify the class name of the association. Use it only if that
-name can’t be inferred from the association name. So has_and_belongs_to_many
-:projects will by default be linked to the Project class, but if the real class
-name is SuperProject, you’ll have to specify it with this option.
-
-:join_table - specify the name of the join table if the default based on lexical
-order isn’t what you want. WARNING: If you’re overwriting the table name of
-either class, the table_name method MUST be declared underneath any
-has_and_belongs_to_many declaration in order to work.
-
-:foreign_key - specify the foreign key used for the association. By default this
-is guessed to be the name of this class in lower-case and "_id" suffixed. So a
-Person class that makes a has_and_belongs_to_many association will use
-"person_id" as the default foreign_key.
-
-:association_foreign_key - specify the association foreign key used for the
-association. By default this is guessed to be the name of the associated class
-in lower-case and "_id" suffixed. So if the associated class is Project, the
-has_and_belongs_to_many association will use "project_id" as the default
-association foreign_key.
-
-:conditions - specify the conditions that the associated object must meet in
-order to be included as a "WHERE" sql fragment, such as "authorized = 1".
-
-:order - specify the order in which the associated objects are returned as a
-"ORDER BY" sql fragment, such as "last_name, first_name DESC"
-
-:uniq - if set to true, duplicate associated objects will be ignored by
-accessors and query methods
-
-:finder_sql - overwrite the default generated SQL used to fetch the association
-with a manual one
-
-:delete_sql - overwrite the default generated SQL used to remove links between
-the associated classes with a manual one
-
-:insert_sql - overwrite the default generated SQL used to add links between the
-associated classes with a manual one
-
-:extend - anonymous module for extending the proxy, see "Association
-extensions".
-
-:include - specify second-order associations that should be eager loaded when
-the collection is loaded.
-
-:group: An attribute name by which the result should be grouped. Uses the GROUP
-BY SQL-clause.
-
-:limit: An integer determining the limit on the number of rows that should be
-returned.
-
-:offset: An integer determining the offset from where the rows should be
-fetched. So at 5, it would skip the first 4 rows.
-
-:select: By default, this is * as in SELECT * FROM, but can be changed if you
-for example want to do a join, but not include the joined columns.
+ * :class_name - specify the class name of the association. Use it only if
+ that name can’t be inferred from the association name. So
+ has_and_belongs_to_many :projects will by default be linked to the Project
+ class, but if the real class name is SuperProject, you’ll have to specify
+ it with this option.
+ * :join_table - specify the name of the join table if the default based on
+ lexical order isn’t what you want. WARNING: If you’re overwriting the
+ table name of either class, the table_name method MUST be declared
+ underneath any has_and_belongs_to_many declaration in order to work.
+ * :foreign_key - specify the foreign key used for the association. By
+ default this is guessed to be the name of this class in lower-case and "_id"
+ suffixed. So a Person class that makes a has_and_belongs_to_many association
+ will use "person_id" as the default foreign_key.
+ * :association_foreign_key - specify the association foreign key used for
+ the association. By default this is guessed to be the name of the associated
+ class in lower-case and "_id" suffixed. So if the associated class is
+ Project, the has_and_belongs_to_many association will use "project_id" as
+ the default association foreign_key.
+ * :conditions - specify the conditions that the associated object must meet
+ in order to be included as a "WHERE" sql fragment, such as "authorized = 1".
+ * :order - specify the order in which the associated objects are returned as
+ a "ORDER BY" sql fragment, such as "last_name, first_name DESC"
+ * :uniq - if set to true, duplicate associated objects will be ignored by
+ accessors and query methods
+ * :finder_sql - overwrite the default generated SQL used to fetch the
+ association with a manual one
+ * :delete_sql - overwrite the default generated SQL used to remove links
+ between the associated classes with a manual one
+ * :insert_sql - overwrite the default generated SQL used to add links
+ between the associated classes with a manual one
+ * :extend - anonymous module for extending the proxy, see "Association
+ extensions".
+ * :include - specify second-order associations that should be eager loaded
+ when the collection is loaded.
+ * :group: An attribute name by which the result should be grouped. Uses the
+ GROUP BY SQL-clause.
+ * :limit: An integer determining the limit on the number of rows that should
+ be returned.
+ * :offset: An integer determining the offset from where the rows should be
+ fetched. So at 5, it would skip the first 4 rows.
+ * :select: By default, this is * as in SELECT * FROM, but can be changed if
+ you for example want to do a join, but not include the joined columns.