September 2010 - Development - lists.drupal.org

Drupal 7 API Change notification: Four small-ish changes
by Randy Fay 07 Oct '10

07 Oct '10

*We try to notify this list when API changes are made in Drupal 7, so contrib and custom developers have a chance to fix their code before they have the pain of figuring out why it's broken. *(issue <http://drupal.org/node/140783>) Select elements in forms now require a default value by default. In the past, #required on a select element was kind of silly. Now it's on by default. So if you have a select element which is not supposed to allow submission without having a selection chosen, you have to set #required = FALSE. *Look carefully at this one if you have a select element in a form that you do not want to be #required.* (issue <http://drupal.org/node/844186#comment-3486946>) Database "merge queries" have changed syntax. If you used MergeQuery::updateExcept() in a merge query, you'll want to see the issue. *Look carefully at this one if you have a MergeQuery and use updateExcept(),* (issue <http://drupal.org/node/907690>) Meaning of MENU_CALLBACK has changed. It is only to be used for paths that are api callbacks only. If you're using it in any other context, of have child paths, things may break. *Look carefully at this one if you registered a MENU_CALLBACK menu item with hook_menu() that is not a plain vanilla path callback.* (issue <http://drupal.org/node/358437#comment-3503006>) Modules support a text format and format ID will need to deal with the fact that 0 is now an invalid format; NULL must be used instead. *Look carefully at this one if your module's schema has a 'format' column.* -- Randy Fay Drupal Module and Site Development randy(a)randyfay.com +1 970.462.7450

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Form adding query parameters
by nan wich 01 Oct '10

01 Oct '10

I have a function that is working fine with query parameters to filter the data, but the customer wants a form to enter the date selections. The form is no problem. But just to make it easier for me, I want the form to set the query parameters and return to the orignal function (menu item) so I don't have to re-code a lot. function stats_form_submit($form, &$form_state) { $start = implode('-', $form_state['values']['start_date']); $end = implode('-', $form_state['values']['end_date']); $g = $_GET; unset($g['q']); $g['start'] = $start; $g['end'] = $end; $r = ''; $sep = ''; foreach ($g as $key => $value) { $r .= "$sep$key=$value"; $sep = '&'; } drupal_set_message("going to $r"); $form_state['redirect'] = url($_GET['q'], array('query' => $r)); drupal_set_message(print_r($_SESSION, true)); } When I do this several weird things happen. First, there is an extra slash in the URL; i.e. instead of "stats/6?end=8-31-2010", I get "/stats/6?end=8-31-2010" (of course with the usual garbagy encoding). I don't know if that is the reason, but te second problem is that the tid (6 in this example) passed from the menu now includes the query string, making it fail the numeric test and not setting $_GET['end']. Is there a better, safer way to return the submitted form data as a query string? Nancy Injustice anywhere is a threat to justice everywhere. -- Dr. Martin L. King, Jr.

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Using Batch API in hook_install
by Lin Clark 29 Sep '10

29 Sep '10

Hi all, Is using Batch API from hook_install discouraged? On installation, my module retrieves 9 files from the Web, parses them, and enters some information into the database. I wanted to use Batch API to do this. It is working in the Web interface, but when I try to enable my module with Drush, I get the following error WD php: Warning: Cannot modify header information - headers already sent by (output started at /drush/includes/drush.inc:797) in drupal_goto() (line 677 of /drupal-head/includes/common.inc). I wanted to use Batch API because some people with slower connections might have timeout problems when retrieving the files and because it is a neat way to tell the user what is happening. Is there another way I should be doing this? Thanks, Lin -- Lin Clark DERI, NUI Galway <http://www.deri.ie/> lin-clark.com twitter.com/linclark

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create a block with menu links
by Lluís Forns 29 Sep '10

29 Sep '10

In my module I want to create a block with menu links. Which is the correct way to do it so permissions are checked? I thought of creating a block and add l() funcionits, but l() don't check permission, and using if(users_accesss()) don't look smart. Thanks -- *Les normes hi són perquè hi pensis abans de saltar-te-les *La vida és com una taronja, què esperes a exprimir-la? *Si creus que l'educació és cara, prova la ignorància. *La vida és com una moneda, la pots gastar en el que vulguis però només una vegada. *Abans d'imprimir aquest missatge, pensa en el medi ambient.

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Chance to play with OG
by nan wich 27 Sep '10

27 Sep '10

A group I belong to wants to replace 5 Yahoo groups with a "real web site." Each of the current Yahoo groups is separate but all related. What they would like to do is combine them into a more portal-like site so that members would normally be in their "home" group, but still be able to see what's going on in all the groups if they choose. Plus, some members belong to more than one of the subgroups. So this sounds like a good chance to play around with Organic Groups. Are there any good "getting started" write ups about OG? What a shame that I probably won't be seeing Moshe again until the end of the year. Obviously, I will be needing Forums, Calendar, and some picture gallery to start with. Probably Comment Notify for thread following. Is there a way to receive email responses and post them to the correct forum thread? Nancy Injustice anywhere is a threat to justice everywhere. -- Dr. Martin L. King, Jr.

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Adding auto-increment to an existing table
by nan wich 26 Sep '10

26 Sep '10

What is the correct order for adding an auto-increment to a table? Obviously this is not it: db_drop_primary_key($ret, 'client_activity'); db_add_field($ret, 'client_activity', 'id', array( 'type' => 'serial', 'not null' => TRUE, 'description' => 'Primary Key: Unique row ID.', )); db_add_primary_key($ret, 'client_activity', 'id'); db_add_index($ret, 'client_activity', 'tnt', array('timestamp', 'nid', 'type')); This gets these errors at update.php: * user warning: Incorrect table definition; there can be only one auto column and it must be defined as a key query: update_sql /* admin : update_sql */ ALTER TABLE client_activity ADD `id` INT auto_increment DEFAULT NULL in C:\www\webapps\drupal6\includes\database.mysql-common.inc on line 298. * user warning: Unknown column 'id' in 'client_activity' query: update_sql /* admin : update_sql */ ALTER TABLE client_activity CHANGE `id` `id` INT NOT NULL auto_increment in C:\www\webapps\drupal6\includes\database.mysql-common.inc on line 520. * warning: Invalid argument supplied for foreach() in C:\www\webapps\drupal6\includes\database.mysql-common.inc on line 109. * user warning: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1 query: update_sql /* admin : update_sql */ ALTER TABLE client_activity ADD PRIMARY KEY () in C:\www\webapps\drupal6\includes\database.mysql-common.inc on line 374. Nancy Injustice anywhere is a threat to justice everywhere. -- Dr. Martin L. King, Jr.

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Anonymous to Authenticated User Cookies
by AustinCMS 24 Sep '10

24 Sep '10

I have the following scenario: 1. Anonymous user browses site. 2. He clicks on link (on Screen A) 3. He is informed he must login to proceed further (-> to Screen B) 3. He clicks on "Register" which takes him to account creation (Screen C) and on form submit to Content Profile for profile creation (Screen D). Client then wants newly-created and authenticated user to be taken back to Screen B. In other words - where he was trying to head before being re-routed into creating an account and profile. There seems to be a lot of discussion and proposed "solutions" for this scenario - but none that actually really work. Login Destination module doesn't work because of Content Profile incompatibilities. AFAIK, LogonToboggan allows you to set a target after login - but not with the intermediate step of Profile creation. I can get a user back to the page where he logged in IF he is already an authenticated user and logging in from the User Login box. But so far, that is the only scenario that works even remotely closely. I'd like to understand better how cookies are managed in Drupal...especially going from an Anonymous session to an authenticated one under the scenario above. I'd appreciate info - or a link to a good resource, if possible... Thanks in advance! Chana

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Form API: AHAH on fields pulled in via AHAH
by Brian Vuyk 22 Sep '10

22 Sep '10

Hi all. I am working on modifying a node form to allow a user to progressively select down through a taxonomy tree, and when they have a final term selected, update the advanced view arguments for a view-backed nodereference field. I am using AHAH, so that as the user selects a term, the next set of potential sub terms will show, in a somewhat similar fashion to how Taxonomy Select works. However, the new select form elements I pull in via AHAH also have ['#ahah'] attributes themselves. As far as I can tell, the AHAH code doesn't seem to trigger for elements that were themselves brought into the form via AHAH. According to http://drupal.org/node/337941, you can get an array from drupal_add_js(NULL, NULL, 'header'); which you can in turn pass on to drupal_json() in order to attach the AHAH behaviours to elements pulled in via AHAH. However, I have tried this with no results. I would appreciate it very much if someone could take a look, and hopefully tell me where I've gone wrong, or what I have to do to get AHAH to work on the elements I am pulling in. You can view a copy of the module as it current stands at http://drupalbin.com/16170. Thanks, Brian

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Replacing the UC cart
by Jeff Greenberg 22 Sep '10

22 Sep '10

I have a client running on a D6 site that is a combination of flash animation and Drupal content. They decided at the start that they didn't want to go the e-commerce route per se, they wanted product pages that fed an online order form that gets e-mailed, despite my advising them that they would probably want to do otherwise later, and that they were not positioning themselves to ease the transition. The product page has a 'cast' of flash animated product thumbnails, and the current product as a large flash animation. A 'baseball' card of Drupal content provides the product info, and a quantity field, which when submitted provides 'add-to-cart' functionality. The client now wants e-commerce, in terms of an order, payment and shipping. They want to retain the product page and the order form as the 'cart.' Those two existing functions are done via a custom module, so I'm thinking that with the 'add-to-cart' functionality I might be able to just change the form name to the one Ubercart uses, if necessary, and replace the content of the standard form. What I'm wondering about is using the online order form as the cart. It looks like image cart detail, with more columns and some ship-to/bill-to data. I can remove the ship-to/bill-to fields and use UC's at order time, but in using this form as the cart, has anyone any tips/pitfalls? Loosely, not having dived into it yet, I'm thinking of 'simply' making use of the UC cart callbacks and ensuring I pass the correct data along...but it's probably not that straight-forward. Jeff

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Drupal.org on HipHop
by Gerhard Killesreiter 22 Sep '10

22 Sep '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi there, I've been following the development of Facebook's HipHop PHP compiler since February with the intention of setting up a copy of drupal.org on it. This has now been achieved, see http://driphop.drupal.org/ This runs on a copy of the database, so feel free to make any changes. It uses bakery for authentication, so you should be able to log-in. Please report any errors you notice in the infrastructure issue queue, I've added a driphop.drupal.org component. The website might be unavailable from time to time. I have not yet done any proper benchmarks for this setup. The aim here is to find bugs (the fastest php page is the one with a parse error after all...). Known bugs: 1) Due do some issue with the way URL rewriting works in Hiphop vs how t works in apache, the homepage gives you a 404 but does actually show the orange d.o box. /node does work, but does not show you the orange box... 2) The local task tabs lack some HTML that the CSS needs to render them properly. Somehow the relevant theme function doesn't appear to get called. 3) I've had to remove three blocks that use PHP in the "pages" column. 4) Uploaded files are not available and none can be uploaded. Thanks to Narayan for getting me a database and to the OSL for loaning us another VM. Cheers, Gerhard -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iEYEARECAAYFAkyZ31EACgkQfg6TFvELooTKLACfUZn2xwluH1u7DChZEtyvo6DG HYoAoLuCR8PD/5ypWbeUkrs4Yeb6NXhO =DetO -----END PGP SIGNATURE-----

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