23 lines
1016 B
Markdown
23 lines
1016 B
Markdown
---
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stage: none
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group: unassigned
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
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---
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# Rails initializers
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By default, Rails loads Zeitwerk after the initializers in `config/initializers` are loaded.
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Autoloading before Zeitwerk is loaded is now deprecated but because we use a lot of autoloaded
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constants in our initializers, we had to move the loading of Zeitwerk earlier than these
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initializers.
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A side-effect of this is that in the initializers, `config.autoload_paths` is already frozen.
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To run an initializer before Zeitwerk is loaded, you need put them in `config/initializers_before_autoloader`.
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Ruby files in this folder are loaded in alphabetical order just like the default Rails initializers.
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Some examples where you would need to do this are:
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1. Modifying Rails' `config.autoload_paths`
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1. Changing configuration that Zeitwerk uses, e.g. inflections
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