diff options
Diffstat (limited to 'activerecord/lib')
-rwxr-xr-x | activerecord/lib/active_record/base.rb | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index cc61498a94..cf830563a3 100755 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -108,6 +108,10 @@ module ActiveRecord #:nodoc: # <tt>Person.find_first(["user_name = ? AND password = ?", user_name, password])</tt>, you just do # <tt>Person.find_by_user_name_and_password(user_name, password)</tt>. # + # While primarily a construct for easier find_firsts, it can also be used as a construct for find_all by using calls like + # <tt>Payment.find_all_by_amount(50)</tt> that is turned into <tt>Payment.find_all(["amount = ?", 50])</tt>. This is something not as equally useful, + # though, as it's not possible to specify the order in which the objects are returned. + # # == Saving arrays, hashes, and other non-mappeable objects in text columns # # Active Record can serialize any object in text columns using YAML. To do so, you must specify this with a call to the class method +serialize+. @@ -648,15 +652,16 @@ module ActiveRecord #:nodoc: end # Enables dynamic finders like find_by_user_name(user_name) and find_by_user_name_and_password(user_name, password) that are turned into - # find_first(["user_name = ?", user_name]) and find_first(["user_name = ? AND password = ?", user_name, password]) respectively. + # find_first(["user_name = ?", user_name]) and find_first(["user_name = ? AND password = ?", user_name, password]) respectively. Also works + # for find_all, but using find_all_by_amount(50) that are turned into find_all(["amount = ?", 50]). def method_missing(method_id, *arguments) method_name = method_id.id2name - if method_name =~ /find_by_([_a-z]+)/ - attributes = $1.split("_and_") + if method_name =~ /find_(all_by|by)_([_a-z]+)/ + finder, attributes = ($1 == "all_by" ? :find_all : :find_first), $2.split("_and_") attributes.each { |attr_name| super unless column_methods_hash[attr_name.intern] } conditions = attributes.collect { |attr_name| "#{attr_name} = ? "}.join(" AND ") - find_first([conditions, *arguments]) + send(finder, [conditions, *arguments]) else super end |