How to add a new filter

When in need of adding a nette filter, if, for example, there is a missing filter or you need an entierly new, follow this process:

1. Code or copy the filter to /app/filters/
   • If you're adding a missing filter, copy the contents of the filter from corresponding wiki page. Most of the filters should be found here: Nette filters
2. In config.neon search for Filters\. There should be something like this

   - Filters\Elixir(%wwwDir%)
   - Filters\ImageExist(%wwwDir%)
   - Filters\Background(%wwwDir%)
   - Filters\GradientBackground(%wwwDir%)
   - Filters\MakePhoto(%wwwDir%)
   - Filters\FileInfo(%wwwDir%)
   - Filters\Watermark(%wwwDir%)
   - Filters\FlattenPhotos
   - Filters\Link

   and add another line that should look like this

   - Filters/YourFilterName

3. Stay in config.neon, search for nette.latteFactory and in setup add another like looking like this

   - addFilter('invokeName', @Filters\YourFilterName)
   

   where invokeName is how you call the filter from latte files and should be in camelCase