Why I cannot change language in product page?

[salko]

I have Prestashop 1.4 and I noticed a strange behaviour with languages: when I am on the main page I can change the language with no problems, but when I go to a product page, I cannot change to the different language; if I click other language, nothinh happens. So is this some kind of a bug or maybe some kind of a feature in PS??

[shokinro]

I just check my demo site is works fine.

You can see it here
http://expresscheckout.dyndns.org:8080/shop1417/product.php?id_product=8&id_lang=4

Please make sure you have created the data for different languages. If you have only input data for one language, then even you click the language, it will display the same data, so you will fell nothing changed.

You have to input different data for name/description at product detail page of back office.
Please click language icon (usually it is a flag icon), then select different language to input data for different language.

[salko]

I forgot to mention that this only happens when I have friendly URLs enabled, if I disable it then switching different languages in a priduct page works fine ... And yes, I know it sould be entered the data for all languages, if not then default language is used ... But when I click to a different language icon (flag) nothing happens, even these flags do not switch, so ...

[shokinro]

I just tried it with SEO friendly URL enabled, it is also working fine.
You can see it here
http://prestashop-addons.com/shop1417/

Is there any error happened when you click the language?
You can try set "display_errors" to 'on" to check it

Please also check link URL of language icons are correctly.
it should be something like below
http://prestashop-addons.com/shop1417/es/portatiles-apple/6-macbook.html

Also please check this
1. clear compile/cache folder to smarty (if you are using version 2, the folder name is smarty_2)
/tools/smarty/compile
/tools/smarty/cache
2. clear your browser cache

[salko]

I see than on your page it works correctly, on mine it works only if I disable friendly URLs.

I have enabled 'display_errors' but I see no errors. Where I should see these errors, if any?

URLs of language icons are correct.

I cleared compile and cache folder of smarty.

I cleared web browser cache.

Still no success, I find out that switching languages doesn't work only when I am on product page, if I am on main page, categories page, subcategories page, and any other pages language switching works normally ... Please help!

[shokinro]

have you tried to re-generate the .htaccess file?
I think maybe the rewrite rules is not generated correctly.

[salko]

have you tried to re-generate the .htaccess file?
I think maybe the rewrite rules is not generated correctly.

Already tried to regenerate it several times, but no success ...

[Zbigniew Szalbot]

have you tried to re-generate the .htaccess file?
I think maybe the rewrite rules is not generated correctly.

Already tried to regenerate it several times, but no success ...

I can confirm the same thing happens to me (and not only to me). The problem appeared after I had switched friendly URLs on. I am also looking for a solution to this. Thanks!

[Timothy Jarman]

spent the last 2 hours trying to get this working, i have same problem. I have never had so many problems with a shop upgrade in my life. i have many languages and i can change them everywhere on the site except when im on a product page.

Soon as i click a flag it will direct to the correct url i.e. if its latvian then /lv/, but the it will instantly switch back to the language i was just on.

If i delete this line from the htaccess then it works, but im no expert and i would think that this is important to keep -- RewriteRule ^[a-zA-Z0-9-]*/([0-9]+)\-[a-zA-Z0-9-]*\.html /FAKEDIR/product.php?id_product=$1 [QSA,L]


Any ideas??

[jinxer]

The solution from Timothy also worked for me. As far as I can see there is no difference in the behaviour of the webshop.

Anyone who knows if there will be a problem with that line in .htaccess removed??

[Zbigniew Szalbot]

I do know what if it causes issues - I haven't noticed any and removing this line helps me as well.

[Timothy Jarman]

i have just tried the new prestashop update and i still have this issue, please prestashop can you help us

[Timothy Jarman]

someone please please help. Not only can i now change products but on my site, now i cant even view new products or specials, i dont understand why. Please help

[salko]

spent the last 2 hours trying to get this working, i have same problem. I have never had so many problems with a shop upgrade in my life. i have many languages and i can change them everywhere on the site except when im on a product page.

Soon as i click a flag it will direct to the correct url i.e. if its latvian then /lv/, but the it will instantly switch back to the language i was just on.

If i delete this line from the htaccess then it works, but im no expert and i would think that this is important to keep -- RewriteRule ^[a-zA-Z0-9-]*/([0-9]+)\-[a-zA-Z0-9-]*\.html /FAKEDIR/product.php?id_product=$1 [QSA,L]


Any ideas??

I do not have this line in .htaccess ... So has anyone found a fix for this?? It's really annoying bug ...

[cybeardjm]

Same problem here on a brand new 1.4.1.0

On an other directory + DB on the same server, I did 2 default scratch installations and the problem doesn't exist.

I'd say then, that some changes at some point in the global configuration of PS, "break" this "normal" behavior, but I don't know what... unfortunately.

I can confirm that commenting the line in .htaccess does indeed work (.htaccess generated automatically from the PS Tools).

For those who haven't seen the problem and want to check : go to http://www.onlinevoyages.com, choose any product, try 2 switch language between FR/EN. Same problem if you start with FR or EN.
If you change language on the home page or any CMS page or any category page, it works fine. Only product pages generate this problem.

sincerely
DJM

[Thurdan]

same problem for me, since I installed shop manager and tried to import/export...

[zyko]

It works OK to me as well.

Did anybody who having the prob, tried to check the error log file ???

Thanks
Delonix

[Thurdan]

Hi Delonix,

Please could you tell me where is located this log file?
Tnx

[zyko]

error log file is on server root directory
however you can chk for any error if it exists by displaying error on the browser by chnaging the setting
ini_set(‘display_errors’, ‘off’)
to
ini_set(‘display_errors’, ‘on’)

in file config/config.inc.php

[zyko]

don't forget to add the following line

error_reporting(E_ALL | E_STRICT);

after ini_set(‘display_errors’, ‘on’)

[Thurdan]

- not found such a file on the root of the server ...
- no error reported by the browser ...

[shokinro]

- not found such a file on the root of the server

I think the log may not be under the root of your PrestaShop root. It could be under more higher level folder that hold logs.

[Thurdan]

I solved the problem ! (at least my problem)

I discovered that only 1 product wrongly configurated is enough to provoke this problem.

In my case, using an import software, a few products were created with a wrong default category assignment (product assigned to one category, different than the default category).

Hope it will help other people

[shokinro]

thanks for sharing the information.
it is very good information and will be very helpful to others.

[holden321]

Any product in the home cat has this problem

[webplus]

Hello,

 

I had the same problem and the fix posted here works for me:

http://www.prestashop.com/forums/topic/118466-solved-language-selector-not-working-on-product-details-pages/

 

Here is the link with 2 highlighted lines that needs to be deleted in /classes/Tools:

http://scm.prestashop.com/viewrep/PrestaShop_v.1.4.x/classes/Tools.php?r1=7849&r2=7852

 

Then regenerate .htaccess

[ijasnijas]

Hello,

 

I had face this error and fixed it. Follow me.

 

There is a line in .htacces file like

 

RewriteRule ^[a-zA-Z0-9-]*/([0-9]+)\-[a-zA-Z0-9-]*\.html /product.php?id_product=$1 [QSA,L]

 

I had change that to

 

RewriteRule ^[a-zA-Z0-9-]{3,}/([0-9]+)\-[a-zA-Z0-9-]*\.html /product.php?id_product=$1 [QSA,L]

 

Now it's working fine.