initial commit

src/models/relationship.model.ts

@@ -0,0 +1,48 @@
+import mongoose, { Document, Schema } from 'mongoose';
+
+export interface IRelationship extends Document {
+    _id: string;
+    source: mongoose.Types.ObjectId;
+    target: mongoose.Types.ObjectId;
+    type: string;
+    customType?: string;
+    network: mongoose.Types.ObjectId;
+}
+
+const RelationshipSchema = new Schema(
+    {
+        source: {
+            type: Schema.Types.ObjectId,
+            ref: 'Person',
+            required: true,
+        },
+        target: {
+            type: Schema.Types.ObjectId,
+            ref: 'Person',
+            required: true,
+        },
+        type: {
+            type: String,
+            required: [true, 'Relationship type is required'],
+            enum: ['freund', 'partner', 'familie', 'arbeitskolleg', 'custom'],
+        },
+        customType: {
+            type: String,
+            trim: true,
+        },
+        network: {
+            type: Schema.Types.ObjectId,
+            ref: 'Network',
+            required: true,
+        },
+    },
+    { timestamps: true }
+);
+
+// Create compound index to ensure unique relationships in a network
+RelationshipSchema.index(
+    { source: 1, target: 1, network: 1 },
+    { unique: true }
+);
+
+export default mongoose.model<IRelationship>('Relationship', RelationshipSchema);