Updated project definition

src/api/article/content-types/article/schema.json

@@ -46,6 +46,12 @@
     "Slug": {
       "type": "uid",
       "targetField": "Title"
+    },
+    "project": {
+      "type": "relation",
+      "relation": "manyToOne",
+      "target": "api::project.project",
+      "inversedBy": "articles"
     }
   }
 }

src/api/project/content-types/project/schema.json

@@ -37,6 +37,12 @@
     "Slug": {
       "type": "uid",
       "targetField": "Title"
+    },
+    "articles": {
+      "type": "relation",
+      "relation": "oneToMany",
+      "target": "api::article.article",
+      "mappedBy": "project"
     }
   }
 }