[wp-testers] Undefined method wpdb::get_blog_prefix() After WP 3 Upgrade

Paul Robinson pablorobinson at gmail.com
Fri Jun 18 13:44:55 UTC 2010


Unfortunately I'm on shared hosting & they don't support memcache or
APC on that server. I've been trying to get a private server from them
but it's a little too expensive for me. I've installed it though &
even without those I've noticed a speed increase. :)

Paul.

On 18 June 2010 14:42, Stefan Wallin, Festiz Webbyrå
<Stefan.W at festiz.com> wrote:
> Be sure to install memcached, the pecl memcache module and the APC opcode
> cache under the "install" link in the w3tc-section. That way you'll utilize
> max performance.
>
>
> Stefan Wallin - Festiz Webbyrå
> =====================================
> 0709-529 036 || stefan.w at festiz.com
> http://festiz.com || http://twitter.com/Stefan_Wallin
>
>
> On Fri, Jun 18, 2010 at 2:53 PM, Paul Robinson <pablorobinson at gmail.com>wrote:
>
>> Thanks I've never heard of W3 but looking at all the sites that use it
>> & how well known they are I might give that a go. :)
>>
>> Paul.
>>
>> On 18 June 2010 12:51, Stefan Wallin, Festiz Webbyrå
>> <Stefan.W at festiz.com> wrote:
>> > I installed W3-Total-Cache which has it's own db.php. I removed the old
>> one
>> > from db cache reloaded and W3-total-cache just wrote a new one in the old
>> > one's place.
>> >
>> > I've seen the perfomance gains brought by the w3tc plugin and they are
>> > awesome.
>> >
>> > Stefan Wallin - Festiz Webbyrå
>> > =====================================
>> > 0709-529 036 || stefan.w at festiz.com
>> > http://festiz.com || http://twitter.com/Stefan_Wallin
>> >
>> >
>> > On Fri, Jun 18, 2010 at 1:30 PM, Paul Robinson <pablorobinson at gmail.com
>> >wrote:
>> >
>> >> Yeah, got the patch now I'm just merging it with the file.
>> >>
>> >> Thanks for the help Dion, you're a star. :)
>> >>
>> >> Paul.
>> >>
>> >> On 18 June 2010 12:27, Dion Hulse (dd32) <wordpress at dd32.id.au> wrote:
>> >> > If you remove the file, your db caching plugin will no longer operate
>> >> > correctly, But WordPress will operate correctly.
>> >> > If you apply the patch floating around, It may fix the problem.
>> >> > If you do neither, you'll have a unusable blog until the author
>> updates
>> >> the
>> >> > plugin :)
>> >> >
>> >> > Simple choices really :)
>> >> >
>> >> > On Fri, 18 Jun 2010 21:23:57 +1000, Paul Robinson <
>> >> pablorobinson at gmail.com>
>> >> > wrote:
>> >> >
>> >> >> Yeah, it's there so & I'm using a db caching plugin. There looks like
>> >> >> there is a patch floating around to fix the problem. Will deleting it
>> >> >> fix the problem or will I need to patch it until the developer fixes
>> >> >> it?
>> >> >>
>> >> >> Thanks for replying. :)
>> >> >>
>> >> >> On 18 June 2010 12:19, Dion Hulse (dd32) <wordpress at dd32.id.au>
>> wrote:
>> >> >>>
>> >> >>> Check to see if you're using wp-content/db.php, That file needs to
>> be
>> >> >>> updated to support the new 3.0 methods.
>> >> >>>
>> >> >>> I've been told that file is created by some caching plugins.
>> >> >>>
>> >> >>> On Fri, 18 Jun 2010 21:16:28 +1000, Paul Robinson
>> >> >>> <pablorobinson at gmail.com>
>> >> >>> wrote:
>> >> >>>
>> >> >>>> Hi,
>> >> >>>>
>> >> >>>> I realize this probably isn't one for wp-testers, but as WP3 just
>> came
>> >> >>>> out maybe it is. I apologize if it isn't, but any help would be
>> >> >>>> greatly appreciated.
>> >> >>>>
>> >> >>>> I've just upgraded to WP 3 & everything seems fine until I try got
>> to
>> >> >>>> either the core upgrade page or to add a new post, all other pages
>> >> >>>> seem to work fine. The pages that do error show this:
>> >> >>>>
>> >> >>>> Fatal error: Call to undefined method wpdb::get_blog_prefix() in
>> >> >>>> ****/****/return-true.com/wp-includes/user.php on line 445
>> >> >>>>
>> >> >>>> I've manually reuploaded the files twice just to check, but it
>> doesn't
>> >> >>>> seem to be a problem with files not uploading correctly.
>> >> >>>>
>> >> >>>> Again any help would be appreciated & again I apologize if this
>> isn't
>> >> >>>> one for the testers list.
>> >> >>>>
>> >> >>>> P.S. I'm currently disabling plugins to see if that is a problem...
>> >> >
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