Allow changing wordlist and domains using the updateSettings mutation

client/coral-admin/src/graphql/index.js

@@ -1,4 +1,15 @@
 import update from 'immutability-helper';
+import mapValues from 'lodash/mapValues';
+
+// Map nested object leaves. Array objects are considered leaves.
+function mapLeaves(o, mapper) {
+  return mapValues(o, (val) => {
+    if (typeof val === 'object' && !Array.isArray(val)) {
+      return mapLeaves(val, mapper);
+    }
+    return mapper(val);
+  });
+}
 
 export default {
   mutations: {
@@ -33,7 +44,7 @@ export default {
       updateQueries: {
         TalkAdmin_Configure: (prev) => {
           const updated = update(prev, {
-            settings: {$merge: input},
+            settings: mapLeaves(input, (leaf) => ({$set: leaf})),
           });
           return updated;
         }

client/coral-admin/src/routes/Configure/containers/Configure.js

@@ -6,7 +6,7 @@ import withQuery from 'coral-framework/hocs/withQuery';
 import {Spinner} from 'coral-ui';
 import {notify} from 'coral-framework/actions/notification';
 import PropTypes from 'prop-types';
-import merge from 'lodash/merge';
+import assignWith from 'lodash/assignWith';
 import {withUpdateSettings} from 'coral-framework/graphql/mutations';
 import {getErrorMessages, getDefinitionName} from 'coral-framework/utils';
 import StreamSettings from './StreamSettings';
@@ -16,10 +16,20 @@ import {clearPending, setActiveSection} from '../../../actions/configure';
 
 import Configure from '../components/Configure';
 
+// Like lodash merge but does not recurse into arrays.
+const mergeExcludingArrays = (objValue, srcValue) => {
+  if (typeof srcValue === 'object' && !Array.isArray(srcValue)) {
+    return assignWith({}, objValue, srcValue, mergeExcludingArrays);
+  }
+  return srcValue;
+};
+
 class ConfigureContainer extends Component {
 
   // Merge current settings with pending settings.
-  getMergedSettings = (props = this.props) => merge({}, props.root.settings, props.pending);
+  getMergedSettings = (props = this.props) => {
+    return assignWith({}, props.root.settings, props.pending, mergeExcludingArrays);
+  }
 
   // Cached merged settings.
   mergedSettings = this.getMergedSettings();

graph/typeDefs.graphql

@@ -1217,6 +1217,12 @@ input UpdateSettingsInput {
   # editCommentWindowLength is the length of time (in milliseconds) after a
   # comment is posted that it can still be edited by the author.
   editCommentWindowLength: Int
+
+  # wordlist allows chaninging the available wordlists.
+  wordlist: UpdateWordlistInput
+
+  # domains allows changing the available lists of domains.
+  domains: UpdateDomainsInput
 }
 
 # UpdateSettingsResponse contains any errors that were rendered as a result
@@ -1231,10 +1237,17 @@ type UpdateSettingsResponse implements Response {
 input UpdateWordlistInput {
 
   # banned words will by default reject the comment if it is found.
-  banned: [String!]!
+  banned: [String!]
 
   # suspect words will simply flag the comment.
-  suspect: [String!]!
+  suspect: [String!]
+}
+
+# UpdateDomainsInput describes all the available lists of domains.
+input UpdateDomainsInput {
+
+  # whitelist is the list of domains that the embed is allowed to render on.
+  whitelist: [String!]
 }
 
 # UpdateWordlistResponse contains any errors that were rendered as a result

services/settings.js

@@ -1,6 +1,32 @@
 const SettingModel = require('../models/setting');
 const errors = require('../errors');
 
+function dotizeRecurse(result, object, path = '') {
+  for (const key in object) {
+    const newPath = path ? `${path}.${key}` : key;
+    if (typeof object[key] === 'object' && !Array.isArray(object[key])) {
+      dotizeRecurse(result, object[key], newPath);
+      return;
+    }
+    result[newPath] = object[key];
+  }
+}
+
+/**
+ * Dotize turns a nested object into flattened object with
+ * dotized key notation. Arrays do not become dotized.
+ *
+ * e.g. {a: {b: 'c'}} becomes {'a.b': 'c}
+ *
+ * @param {Object} object
+ * @return {Object} dotized object
+ */
+function dotize(object) {
+  const result = {};
+  dotizeRecurse(result, object);
+  return result;
+}
+
 /**
  * The selector used to uniquely identify the settings document.
  */
@@ -34,7 +60,7 @@ module.exports = class SettingsService {
    */
   static update(settings) {
     return SettingModel.findOneAndUpdate(selector, {
-      $set: settings
+      $set: dotize(settings)
     }, {
       upsert: true,
       new: true,