I doubt that anything went wrong with your upgrade. I would guess that
you host is using PHP 5.2.12 or 5.2.13, which had a bug that broke
some of our code for database access. A workaround for these versions
of PHP has been committed to the development version of Habari. If
this is the case, your options are to revert back to your old Habari,
install the development version of Habari (available at
http://habariproject.org/dist/habari_head.zip ), or not use tags until
the next version of Habari is released.

Rick

On Jan 14, 12:50 pm, dahead <[email protected]> wrote:
> *Hi guys,
>
> after updating my blog from 0.6.7 do the newest Developer Preview i get the 
> following errors after i do the following:
> - edit an existing post
> - i see no old tags
> - i try to add the tags again and get the error messages below. If i do not 
> enter any tag i it works fine...
>
> I guess something went wrong updating my database?
>
> Greets,
> dh
> *
>
> **
>
> *
> Notice:*  Undefined variable: value in system/classes/term.php line 89
>
> *Warning:*  PDOStatement::execute() [pdostatement.execute  
> <http://habari.dahead.de/admin/pdostatement.execute>]: SQLSTATE[23000]: 
> Integrity constraint violation: 1048 Column 'term_display' cannot be null in 
> system/classes/databaseconnection.php line 269
>
> *Notice:*  Trying to get property of non-object in 
> system/classes/vocabulary.php line 461
>
> *Notice:*  Trying to get property of non-object in 
> system/classes/vocabulary.php line 462
>
> *Notice:*  Undefined variable: value in system/classes/term.php line 89
>
> *Warning:*  PDOStatement::execute() [pdostatement.execute  
> <http://habari.dahead.de/admin/pdostatement.execute>]: SQLSTATE[23000]: 
> Integrity constraint violation: 1048 Column 'term_display' cannot be null in 
> system/classes/databaseconnection.php line 269
>
> *Notice:*  Trying to get property of non-object in 
> system/classes/vocabulary.php line 461
>
> *Notice:*  Undefined variable: value in system/classes/term.php line 89
>
> *Warning:*  PDOStatement::execute() [pdostatement.execute  
> <http://habari.dahead.de/admin/pdostatement.execute>]: SQLSTATE[23000]: 
> Integrity constraint violation: 1048 Column 'term_display' cannot be null in 
> system/classes/databaseconnection.php line 269
>
> *Notice:*  Trying to get property of non-object in 
> system/classes/vocabulary.php line 461
>
> *Notice:*  Undefined variable: value in system/classes/term.php line 89
>
> *Warning:*  PDOStatement::execute() [pdostatement.execute  
> <http://habari.dahead.de/admin/pdostatement.execute>]: SQLSTATE[23000]: 
> Integrity constraint violation: 1048 Column 'term_display' cannot be null in 
> system/classes/databaseconnection.php line 269
>
> *Notice:*  Trying to get property of non-object in 
> system/classes/vocabulary.php line 461
>
> *Notice:*  Undefined variable: value in system/classes/term.php line 89
>
> *Warning:*  PDOStatement::execute() [pdostatement.execute  
> <http://habari.dahead.de/admin/pdostatement.execute>]: SQLSTATE[23000]: 
> Integrity constraint violation: 1048 Column 'term_display' cannot be null in 
> system/classes/databaseconnection.php line 269
>
> *Notice:*  Trying to get property of non-object in 
> system/classes/vocabulary.php line 461
>
> *Notice:*  Undefined variable: value in system/classes/term.php line 89
>
> *Warning:*  PDOStatement::execute() [pdostatement.execute  
> <http://habari.dahead.de/admin/pdostatement.execute>]: SQLSTATE[23000]: 
> Integrity constraint violation: 1048 Column 'term_display' cannot be null in 
> system/classes/databaseconnection.php line 269
>
> *Notice:*  Trying to get property of non-object in 
> system/classes/vocabulary.php line 461
>
> *Notice:*  Undefined variable: value in system/classes/term.php line 89
>
> *Warning:*  PDOStatement::execute() [pdostatement.execute  
> <http://habari.dahead.de/admin/pdostatement.execute>]: SQLSTATE[23000]: 
> Integrity constraint violation: 1048 Column 'term_display' cannot be null in 
> system/classes/databaseconnection.php line 269
>
> *Notice:*  Trying to get property of non-object in 
> system/classes/vocabulary.php line 461
>
> *Fatal error*: Call to a member function associate() on a non-object in
> */www/htdocs/w005de79/habari/system/classes/vocabulary.php* on line *478*

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