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Diffstat (limited to 'guides')
| -rw-r--r-- | guides/source/form_helpers.textile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/guides/source/form_helpers.textile b/guides/source/form_helpers.textile index b6420db798..711ed3d859 100644 --- a/guides/source/form_helpers.textile +++ b/guides/source/form_helpers.textile @@ -405,6 +405,8 @@ Whenever Rails sees that the internal value of an option being generated matches TIP: The second argument to +options_for_select+ must be exactly equal to the desired internal value. In particular if the value is the integer 2 you cannot pass "2" to +options_for_select+ -- you must pass 2. Be aware of values extracted from the +params+ hash as they are all strings. +WARNING: when +:inlude_blank+ or +:prompt:+ are not present, +:include_blank+ is forced true if the select attribute +required+ is true, display +size+ is one and +multiple+ is not true. + h4. Select Boxes for Dealing with Models In most cases form controls will be tied to a specific database model and as you might expect Rails provides helpers tailored for that purpose. Consistent with other form helpers, when dealing with models you drop the +_tag+ suffix from +select_tag+: |