feat: add option to turn off mdate updates

hperrin · hperrin · commit 778885bcbe24 · 2024-12-20T11:07:10.000-08:00
diff --git a/packages/nymph/src/conf/d.ts b/packages/nymph/src/conf/d.ts
@@ -21,6 +21,14 @@ export interface Config {
    * return a 404 error.
    */
   emptyListError: boolean;
+  /**
+   * Whether to update the mdate property when saving an entity.
+   *
+   * You should probably only set this to false if you're doing migrations. Some
+   * things depend on having updated mdates (like conflict detection to avoid
+   * lost updates).
+   */
+  updateMDate: boolean;
   /**
    * A function to log info messages. By default, uses the `debug` package.
    */
diff --git a/packages/nymph/src/conf/defaults.ts b/packages/nymph/src/conf/defaults.ts
@@ -28,6 +28,7 @@ export default {
   cacheThreshold: 4,
   cacheLimit: 50,
   emptyListError: false,
+  updateMDate: true,
   debugInfo: (source, message) => {
     getDebuggers(source).info(message);
   },
diff --git a/packages/nymph/src/driver/NymphDriver.ts b/packages/nymph/src/driver/NymphDriver.ts
@@ -1038,7 +1038,9 @@ export default abstract class NymphDriver {
       | null = null,
   ) {
     // Get a modified date.
-    const mdate = Date.now();
+    const mdate = this.nymph.config.updateMDate
+      ? Date.now()
+      : (entity.mdate ?? Date.now());
     const tags = difference(entity.tags, ['']);
     const data = entity.$getData();
     const sdata = entity.$getSData();
