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module: flow |
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# flow |
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## Responsibility |
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Owns the two CartFlows custom post types (`cartflows_flow`, `cartflows_step`), their two taxonomies, the step URL/rewrite layer, and the two front-end page templates that render a step. |
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Ownership stops at rendering the step shell — step *content* (checkout, optin, thank-you logic), settings storage, and the admin funnel UI live outside this module. It only exposes the abstract `Cartflows_Step_Meta_Base` contract for them. |
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## Why it is this way |
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The module is small, but nearly every non-obvious line is defensive scar tissue whose reason lives outside the code. Removing the permalink base means claiming a site-wide catch-all rewrite rule, and the five bail conditions guarding it each close a specific reported bug rather than expressing a general rule. |
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Hook order is require order here: every class self-instantiates at include time with hook registration in its constructor, so there is no way to load a class without registering its hooks. |
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