new API getFieldRootsOfTangle

lib/index.js

@@ -333,6 +333,27 @@ function initRecord(peer, config) {
     return fieldRoots.getAll(subdomain)
   }
 
+  /**
+   * @param {string} tangleID
+   */
+  function getFieldRootsOfTangle(tangleID) {
+    assertDBExists(peer)
+    // prettier-ignore
+    if (!accountID) throw new Error('Cannot getFieldRootsByTangle() before loading')
+
+    const rootMsg = peer.db.get(tangleID)
+    if (!rootMsg) throw new Error(`Cannot find tangle root "${tangleID}"`)
+    // prettier-ignore
+    if (!MsgV3.isMoot(rootMsg, accountID)) throw new Error(`"${tangleID}" is not a moot`)
+
+    const domain = rootMsg.metadata.domain
+    // prettier-ignore
+    if (!domain.startsWith(PREFIX)) throw new Error(`"${tangleID}" is not a record moot`)
+    const subdomain = toSubdomain(domain)
+
+    return getFieldRoots(subdomain)
+  }
+
   /**
    * @public
    * @param {string} id
@@ -416,6 +437,7 @@ function initRecord(peer, config) {
     update,
     read,
     getFieldRoots,
+    getFieldRootsOfTangle,
     squeeze,
 
     _squeezePotential,

test/index.test.js

@@ -79,6 +79,8 @@ test('Record update() and get()', async (t) => {
     { age: ['9iTTqNabtnXmw4AiZxNMRq'], name: ['M2JhM7TE2KX5T5rfnxBh6M'] },
     'fieldRoots'
   )
+
+
 })
 
 test('Record squeeze', async (t) => {
@@ -141,6 +143,9 @@ test('Record receives old branched update', async (t) => {
     'fieldRoots'
   )
 
+  const altFieldRoots7 = peer.record.getFieldRootsOfTangle(mootID)
+  assert.deepEqual(altFieldRoots7, fieldRoots7, 'getFieldRootsOfTangle')
+
   assert.equal(peer.record._squeezePotential('profile'), 6, 'squeezePotential=6')
 })