(I would have posted this to the tracker, but I get an error message
when I try to create a ticket.)
validates_numericality_of uses the regular expression /^[\+\-]?\d+$/,
but because ^ and $ match the start/end of a line, as long as one line
in the input string matches the value is accepted. The solution is to
use \A and \Z instead of ^ and $.
A patch is attached.
Index: activerecord/test/validations_test.rb
===================================================================
--- activerecord/test/validations_test.rb (revision 4630)
+++ activerecord/test/validations_test.rb (working copy)
@@ -1013,7 +1013,7 @@
end
-class ValidatesNumericalityTest
+class ValidatesNumericalityTest < Test::Unit::TestCase
NIL = [nil, "", " ", " \t \r \n"]
BIGDECIMAL_STRINGS = %w(12345678901234567890.1234567890) # 30 significent
digits
FLOAT_STRINGS = %w(0.0 +0.0 -0.0 10.0 10.5 -10.5 -0.0001 -090.1 90.1e1
-90.1e5 -90.1e-5 90e-5)
@@ -1021,7 +1021,7 @@
FLOATS = [0.0, 10.0, 10.5, -10.5, -0.0001] + FLOAT_STRINGS
INTEGERS = [0, 10, -10] + INTEGER_STRINGS
BIGDECIMAL = BIGDECIMAL_STRINGS.collect! { |bd| BigDecimal.new(bd) }
- JUNK = ["not a number", "42 not a number", "0xdeadbeef", "00-1", "--3", "+-3", "+3-1",
"-+019.0", "12.12.13.12"]
+ JUNK = ["not a number", "42 not a number", "0xdeadbeef", "00-1", "--3", "+-3", "+3-1",
"-+019.0", "12.12.13.12", "123\nnot a number"]
def setup
Topic.write_inheritable_attribute(:validate, nil)
@@ -1061,7 +1061,7 @@
def invalid!(values)
values.each do |value|
topic = Topic.create("title" => "numeric test", "content" => "whatever",
"approved" => value)
- assert !topic.valid?, "#{value} not rejected as a number"
+ assert !topic.valid?, "#{value.inspect} not rejected as a number"
assert topic.errors.on(:approved)
end
end
@@ -1069,7 +1069,7 @@
def valid!(values)
values.each do |value|
topic = Topic.create("title" => "numeric test", "content" => "whatever",
"approved" => value)
- assert topic.valid?, "#{value} not accepted as a number"
+ assert topic.valid?, "#{value.inspect} not accepted as a number"
end
end
end
Index: activerecord/lib/active_record/validations.rb
===================================================================
--- activerecord/lib/active_record/validations.rb (revision 4630)
+++ activerecord/lib/active_record/validations.rb (working copy)
@@ -554,9 +554,11 @@
# provided.
#
# class Person < ActiveRecord::Base
- # validates_format_of :email, :with => /^([EMAIL
PROTECTED])@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i, :on => :create
+ # validates_format_of :email, :with => /\A([EMAIL
PROTECTED])@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i, :on => :create
# end
#
+ # Note: use \A and \Z to match the start and end of the string, ^ and $
match the start/end of a line.
+ #
# A regular expression must be provided or else an exception will be
raised.
#
# Configuration options:
@@ -670,7 +672,7 @@
# Validates whether the value of the specified attribute is numeric by
trying to convert it to
# a float with Kernel.Float (if <tt>integer</tt> is false) or applying
it to the regular expression
- # <tt>/^[\+\-]?\d+$/</tt> (if <tt>integer</tt> is set to true).
+ # <tt>/\A[\+\-]?\d+\Z/</tt> (if <tt>integer</tt> is set to true).
#
# class Person < ActiveRecord::Base
# validates_numericality_of :value, :on => :create
@@ -691,7 +693,7 @@
if configuration[:only_integer]
validates_each(attr_names,configuration) do |record, attr_name,value|
- record.errors.add(attr_name, configuration[:message]) unless
record.send("#{attr_name}_before_type_cast").to_s =~ /^[+-]?\d+$/
+ record.errors.add(attr_name, configuration[:message]) unless
record.send("#{attr_name}_before_type_cast").to_s =~ /\A[+-]?\d+\Z/
end
else
validates_each(attr_names,configuration) do |record, attr_name,value|
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