Division by zero warnings in nginx error log

[tmelikoff]

Issue details

After importing old wallabag v1.9.1, during navigation between articles, at each click these warnings appear:

2016/04/07 14:42:40 [error] 6072#6072: *572 FastCGI sent in stderr: "PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP messa
2016/04/07 14:42:49 [error] 6072#6072: *572 FastCGI sent in stderr: "PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP message: PHP Warning:  Division by zero in /var/www/wallabag/var/cache/prod/twig/1a/1a984f7807246e16405eacdebeb164ac7bfde2e9c1797913ed75b23fc94f3327.php on line 127
PHP messa

Environment

wallabag version (or git revision) that exhibits the issue: wallabag-2.0.0.tar.gz (md5 hash: b61762d28a9b99a64ea4906fd8f93a58)
How did you install wallabag? Via composer create-project or by downloading the package? Downloading the package
Last wallabag version that did not exhibit the issue (if applicable): n/a
php version: PHP 5.6.19-0+deb8u1
OS: Raspbian Jessie
type of hosting (shared or dedicated): dedicated (Raspberry Pi 2)
which storage system you choose at install (SQLite, MySQL/MariaDB or PostgreSQL): SQLite

Steps to reproduce/test case

I've imported my v1 backup and warnings starts to appear in nginx error.log.

As @tcitworld suggested, I've changed read speed to 200, saved, then reverted to 100 and the warnings are gone.

[nicosomb]

Hello @tmelikoff,

You said you installed wallabag via the package. I checked, and the package provides good data to use the application (the Division by zero warning seems to be due to the readingSpeed value).
Can you reproduce the warning and open the cache file given in the warning to display the line 127 please?

[tmelikoff]

@nicosomb done, here's line 127
$context["readingTime"] = ($this->getAttribute($context["entry"], "readingTime", array()) / $this->getAttribute($this->getAttribute($this->getAttribute((isset($context["app"]) ? $context["app"] : null), "user", array()), "config", array()), "readingSpeed", array()));

[j0k3r]

This was due to a mis-creating of user's config.
It should be fixed by now.