list_class_relations
Contrib classes extending a core class
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List the contrib classes that extend, implement or use a core class, interface or trait, one row per edge with file and line, paged. Example: "who subclasses FormBase". Call-site counts: list_symbol_users. The symbol's status: lookup_core_symbol.
- target: with or without the leading backslash. An unknown target is refused with a pointer at lookup_core_symbol; a fragment there lists candidates. rel_kind: one of extends, implements, uses_trait. project: one machine name.
- Development branches only. edge_count: every edge. project_count: projects. count: edges after the per_project cap. project_edges on each row: the project's full count. per_project=50 with project= lists one project in full.
- Rows are ordered by project installs, project, source_fqn. Each row: project, branch, installs, source_fqn, rel_kind, file, line, project_edges. limit ≤ 100. next_offset is absent on the last page.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| target | string | yes | The core class, interface or trait, with or without the leading backslash: Drupal\Core\Form\FormBase. |
| rel_kind | string | no | extends, implements, or uses_trait; any when absent. |
| project | string | no | Restrict to one project machine name. |
| per_project | integer | no | Edges shown per project on a page, 1 to 50 (default 3). Each row has project_edges, the project's full count. |
| limit | integer | no | Rows per page, 1 to 100 (default 50). |
| offset | integer | no | Skip this many rows in the same ranked order. Pass the previous page's next_offset. |
Raw JSON schema
{
"type": "object",
"properties": {
"target": {
"type": "string",
"description": "The core class, interface or trait, with or without the leading backslash: Drupal\\Core\\Form\\FormBase."
},
"rel_kind": {
"type": "string",
"description": "extends, implements, or uses_trait; any when absent."
},
"project": {
"type": "string",
"description": "Restrict to one project machine name."
},
"per_project": {
"type": "integer",
"description": "Edges shown per project on a page, 1 to 50 (default 3). Each row has project_edges, the project's full count."
},
"limit": {
"type": "integer",
"description": "Rows per page, 1 to 100 (default 50)."
},
"offset": {
"type": "integer",
"description": "Skip this many rows in the same ranked order. Pass the previous page's next_offset."
}
},
"required": [
"target"
],
"additionalProperties": false
}