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Cannot redeclare Patchwork\redefine() #49

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Purus opened this issue Mar 7, 2017 · 5 comments
Closed

Cannot redeclare Patchwork\redefine() #49

Purus opened this issue Mar 7, 2017 · 5 comments

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@Purus
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@Purus Purus commented Mar 7, 2017

I guess the below question looks like a newbie PHP question. But I wanted to hear the solution from the developer of this great package.

I am developing a plugin for a CMS which uses Patchwork library. The CMS has another plugin using Patchwork.

Due to 2 declaration of same classes/functions, I am getting the fatal error as below.

Fatal error: Cannot redeclare Patchwork\redefine()

If I have to re-declare all classes/function to a new namespace, what will be the best approach? Using function_exist method will help?

@antecedent
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@antecedent antecedent commented Mar 7, 2017

Indeed, you might want to surround your own include statement for Patchwork with if (!function_exists('Patchwork\replace')) { ... }, so that it's imported only once.

(Older versions used to have replace instead of redefine; it's available as an alias in 2.0 too.)

However, I'll address this in Patchwork's code too, as this is a very general issue.

Also, I'm awfully sorry, but I couldn't quite understand the concern in your last paragraph, so there might still have been some miscommunication.

And thank you for the kind words :)

@Purus
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@Purus Purus commented Mar 8, 2017

Thanks for your time on the response.

My question is about renaming the namespace to something else. like Patchwork2. If I have to do this, how should I start?

@Purus
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@Purus Purus commented Mar 8, 2017

Checking for function does not help.

if(!function_exists('Patchwork\redefine')){
    require_once $classDir . "autoload.php";
    require_once $classDir . "antecedent" . DS . "patchwork" . DS . "Patchwork.php";
}

I still get the same error.

Fatal error: Cannot redeclare Patchwork\redefine() (previously declared in C:\Program Files\VertrigoServ\www\plugins\email_template\classes\antecedent\patchwork\Patchwork.php:17) in C:\Program Files\VertrigoServ\www\plugins\email_logs\classes\antecedent\patchwork\Patchwork.php on line 25

@antecedent
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@antecedent antecedent commented Mar 9, 2017

(My apologies again, I'd been working on a take-home assignment for a job interview for the past few days.)

I see that this might not work if the other copy of Patchwork is autoloaded at an unpredictable point in time. For now, I guess the only thing I can suggest is manually editing out the conflicting include statement for Patchwork. However, I'm already working on a more reliable fix.

As for your first response: running two copies of Patchwork simultaneously (if you really mean that) would be really difficult to accomplish. The preprocessing component (CodeManipulation) is the main obstacle here.

@antecedent
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@antecedent antecedent commented Mar 9, 2017

Please upgrade to 2.0.1 :)

@antecedent antecedent closed this May 3, 2017
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