Illegal string offset 'field' in DatabaseCondition->__clone() (line 1901 of /usr/local/www/drupal7/includes/database/query.inc

Replicated the issue using PHP 5.4.x, and also solved by updating to Drupal 7.14 and running update.php.

Thank you.

I had the same error and solved it by downloading the version 7.15 of drupal on my pc and replacing the file file.inc located in htdocs / xampp / ... / includes / database / query.inc of the 7.14 by the 7.15.

I had this problem amongst others while trying to install the "Using Drupal 2nd Edition" source (Drupal 7.12) on Windows 7 using Wamp 2.5.

If anyone else has this problem here's how I solved the first error encountered:

NOTE: This must be done BEFORE install.

1.) File: /drupal-7/includes/unicode.inc

Changed Line #76 from:

'\x{D800}-\x{F8FF}\x{FB29}\x{FD3E}-\x{FD3F}\x{FDFC}-\x{FDFD}' .

To:

'\x{E800}-\x{F8FF}\x{FB29}\x{FD3E}-\x{FD3F}\x{FDFC}-\x{FDFD}' .

As per the same file in Drupal 7.34, yes, really that simple, one letter changed.

NOTE: Below must be done DURING install (the configure site page when the error appears).

2.) File: /drupal-7/includes/menu.inc

Changed line #3155 from:

if (!$existing_item || (array_intersect_assoc($item, $existing_item)) != $existing_item) {

To:

if (!$existing_item || (array_intersect_key($item, $existing_item) != $existing_item)) {

Method change and brackets were in the wrong places.

Below is how I solved the error specific to THIS post...

NOTE: The below must be done AFTER install, after clicking visit your site and getting the error.

3.) File: drupal-7/includes/database/query.inc

Couldn't identify the error so replaced with same file from Drupal 7.34.

Hope this helps another Drupal newbie like me!

The Solution to this issue seems to be pretty straight-forward:
Just add a Conditional Logic within the FOREACH Loop (inside the __clone() Function).
The conditional logic checks if $condition["field"] is set before running the body of the Loop.
Here below is the Function with the new Conditional Logic but first follow these few steps:

1. Open up /includes/database/query.inc in your editor.
2. Find the Function __clone (probably on Line 1901 [in Your case]
3. Replace that Function with the One below and that's it....

function __clone() {
    $this->changed = TRUE;
    foreach ($this->conditions as $key => $condition) {
	    if( isset($condition['field'])){     //THIS SHOULD TAKE CARE OF THE ERROR 
		    if ($condition['field'] instanceOf QueryConditionInterface) {
			    $this->conditions[$key]['field'] = clone($condition['field']);
		    }
	    }
    }
 }

Don't forget to let me know if this helps....

Cheers...
  
 

Hi guys,

Same for me, after having done all is written here AND https://www.drupal.org/node/1442876
I now have no error message but get to a 500
http://.../install.php?profile=ch03_jobs&locale=en&id=2&op=finished

curl "http://usingdrupal.guillaumerenard.fr/install.php?profile=ch03_jobs&loca..." -H "Pragma: no-cache" -H "Accept-Encoding: gzip, deflate, sdch" -H "Accept-Language: fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4,de;q=0.2" -H "User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.89 Safari/537.36" -H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8" -H "Referer: http://usingdrupal.guillaumerenard.fr/install.php?profile=ch03_jobs&loca..." -H "Cookie: SESS4140d02837532dbf25050fbcc42a752d=wtgaaoq1mLdI85kJCqY8sn7_D_yOvG9gGHlCkx0V0Oc; has_js=1" -H "Connection: keep-alive" -H "Cache-Control: no-cache" --compressed

--> 500

No idea what to do to have this drupal book working with 7.12

Happy easter !

function __clone() {
  $this->changed = TRUE;
  foreach ($this->conditions as $key => $condition) {
    if ($key !== '#conjunction') {
      if ($condition['field'] instanceOf QueryConditionInterface) {
        $this->conditions[$key]['field'] = clone($condition['field']);
      }
      if ($condition['value'] instanceOf SelectQueryInterface) {
        $this->conditions[$key]['value'] = clone($condition['value']);
      }
    }
  }
}

hi,
this is known bug using php5.4.* you can solve it by using patch
http:/ /drupal.org/files/php54_can_die_in_a_fire.patch
or you also can upgrade Drupal to 7.7.14 that solves query.inc bug. Or you can manually add condition to check $condition['field'] is available or set to use or not in clone function of query.inc file.

thanks

this is working for me