[imp] changing signature at once for all users

[Cristian-Petru Pencov]

Thank you Jens for your guidance.
I will post my results here.


> Date: Wed, 15 Aug 2018 09:20:12 +0200
> From: Jens Wahnes <wahnes at uni-koeln.de>
> Subject: Re: [imp] changing signature at once for all users



> Cristian-Petru Pencov wrote:
>> I'm again in situation to replace some text in user's signature for  
>> more than fifty accounts.
>
> with the usual "SQL database" backend for preference storage, it is  
> possible to write code that retrieves the individual users'  
> "identities" preferences (they are serialized PHP objects and can be  
> unserialize()d). Note that one user can have several identities, so  
> for each user, you are looking at an array of arrays.  Then, there  
> is both a "signature" and a "signature_html" preference.  While  
> parsing and manipulating the normal signature with preg_replace or  
> such shouldn't be too hard to do, things get a bit more complicated  
> when you're dealing with HTML code. Depending on what you would like  
> to change in every user's signature (e.g. phone number or postal  
> address), you might have a hard time parsing the HTML code since  
> users may have selected to use a different font (small, bold,  
> whatever) for parts of the signature, and they might even have done  
> so accidentally.  For instance, imagine you're trying to put a new  
> phone number into everyone's signatures, but some user has got  
> opening or closing HTML tags inside the phone number because they  
> missed to select one digit of the phone number when they edited  
> their signature and put all other digits of the phone number into  
> boldface.  That really is one mess to sort out if all you wanted to  
> do is write one small script to adapt you users' signatures.  Oh,  
> and you'll have to serialize() that stuff and write it back to the  
> database once you've walked through each user's array of identities.  
>  Better have a backup of the old data, too, in case something goes  
> wrong.
>
>
> Jens



-- 


Cu stima,
Cristian-Petru Pencov
IT specialist

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