# Hidden fields **URL:** \ **Category:** Rails\ **Created:** [March 17, 2006, 11:29am UTC](https://www.ruby-forum.com/t/hidden-fields/83085 "2006-03-17T11:29:58Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Antonin\_AMAND](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/6de8d8/32.png) [@Antonin\_AMAND](https://www.ruby-forum.com/u/Antonin_AMAND)\ **Post date:** [March 17, 2006, 11:29am UTC](https://www.ruby-forum.com/t/hidden-fields/83085/1 "2006-03-17T11:29:58Z")
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I’m a rails newbie trying to develop a blog application with rails. I’ve some troubles to find the best way of automaticly set a field value on update and creation of a blog item. In fact my problem is very simple. I’ve a blog table with two column named create\_date an mod\_date. And I’d like : 1 - that create\_date is set on creation and is never modified after that 2 - mod\_date is set on update Pre-Thanks for help. Antonin. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (Darwin) Comment: Using GnuPG with Mozilla - [http://enigmail.mozdev.org](http://enigmail.mozdev.org) iD8DBQFEGo7prvKyD2MLOwsRAvCtAKDP4+EBGg/H1mPjuJfUZBRDEw37aQCfexgO ahyZ1Iu//wqzd7iM4ctFGgU= =1icq -----END PGP SIGNATURE----- ---
**Author:** ![Antonin\_AMAND](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/6de8d8/32.png) [@Antonin\_AMAND](https://www.ruby-forum.com/u/Antonin_AMAND)\ **Post date:** [March 17, 2006, 11:33am UTC](https://www.ruby-forum.com/t/hidden-fields/83085/2 "2006-03-17T11:33:10Z")
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**Author:** ![Antonin\_AMAND](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/6de8d8/32.png) [@Antonin\_AMAND](https://www.ruby-forum.com/u/Antonin_AMAND)\ **Post date:** [March 17, 2006, 11:54am UTC](https://www.ruby-forum.com/t/hidden-fields/83085/3 "2006-03-17T11:54:33Z")
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Mats L. a écrit : > > 1 - that create\_date is set on creation and is never modified after that > > and > > created\_at TIMESTAMP Thank you for your quick answer. I understand that all this is about naming conventions ?? \_on make the column to be updated when modification is made \_at make the column to be set a creation time Am i right ? Also, what if i want some field to be set by some code but not by the user. I have a field ‘user\_id’, not yet a table representing the user. I’ve seen this is automatically not-displayed in the scaffold. But, how can I set it with some piece of code when the record is created ? Antonin. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (Darwin) Comment: Using GnuPG with Mozilla - [http://enigmail.mozdev.org](http://enigmail.mozdev.org) iD8DBQFEGpT9rvKyD2MLOwsRApYmAJ0V6KiKX5Ld2SLFH5SUqY95c+8VtACfVqNz tThBqpWrvu3tOpCZP3O7TtI= =YplM -----END PGP SIGNATURE----- ---
**Author:** ![Antonin\_AMAND](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/6de8d8/32.png) [@Antonin\_AMAND](https://www.ruby-forum.com/u/Antonin_AMAND)\ **Post date:** [March 17, 2006, 12:09pm UTC](https://www.ruby-forum.com/t/hidden-fields/83085/4 "2006-03-17T12:09:54Z")
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Antonin AMAND a écrit : > > > > > > > > > > modified\_on DATETIME > > > and > > > created\_at TIMESTAMP > > Thank you for your quick answer. > > I understand that all this is about naming conventions ?? > \_on make the column to be updated when modification is made > \_at make the column to be set a creation time > > Am i right ? I’m not ! i’ve just try this, an it doesn’t do what i want. ☹ modification an creation date can still be modified by the user. Antonin. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (Darwin) Comment: Using GnuPG with Mozilla - [http://enigmail.mozdev.org](http://enigmail.mozdev.org) iD8DBQFEGph9rvKyD2MLOwsRAutMAJkBnW+UWvcgw5/wqfWnCuZSNV3kBgCgjKR2 A7YmqrboAyS/wPrpmxBlau4= =cemZ -----END PGP SIGNATURE----- ---
**Author:** ![Antonin\_AMAND](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/6de8d8/32.png) [@Antonin\_AMAND](https://www.ruby-forum.com/u/Antonin_AMAND)\ **Post date:** [March 17, 2006, 12:22pm UTC](https://www.ruby-forum.com/t/hidden-fields/83085/5 "2006-03-17T12:22:11Z")
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