Move instances of Client.updateChannelPurpose() in components to an action (#5096)

webapp/actions/channel_actions.jsx

@@ -364,6 +364,25 @@ export function createChannel(channel, success, error) {
     );
 }
 
+export function updateChannelPurpose(channelId, purposeValue, success, error) {
+    Client.updateChannelPurpose(
+        channelId,
+        purposeValue,
+        () => {
+            AsyncClient.getChannel(channelId);
+
+            if (success) {
+                success();
+            }
+        },
+        (err) => {
+            if (error) {
+                error(err);
+            }
+        }
+    );
+}
+
 export function updateChannelHeader(channelId, header, success, error) {
     Client.updateChannelHeader(
         channelId,

webapp/components/edit_channel_purpose_modal.jsx

@@ -2,15 +2,14 @@
 // See License.txt for license information.
 
 import PreferenceStore from 'stores/preference_store.jsx';
-import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
-import * as AsyncClient from 'utils/async_client.jsx';
-import Client from 'client/web_client.jsx';
+
 import Constants from 'utils/constants.jsx';
 import * as Utils from 'utils/utils.jsx';
 
 import React from 'react';
 import {Modal} from 'react-bootstrap';
 import {FormattedMessage} from 'react-intl';
+import {updateChannelPurpose} from 'actions/channel_actions.jsx';
 
 export default class EditChannelPurposeModal extends React.Component {
     constructor(props) {
@@ -64,18 +63,11 @@ export default class EditChannelPurposeModal extends React.Component {
 
         this.setState({submitted: true});
 
-        Client.updateChannelPurpose(
+        updateChannelPurpose(
             this.props.channel.id,
             this.refs.purpose.value.trim(),
-            (channel) => {
-                AsyncClient.getChannel(this.props.channel.id);
-
+            () => {
                 this.handleHide();
-
-                AppDispatcher.handleServerAction({
-                    type: Constants.ActionTypes.RECEIVED_CHANNEL,
-                    channel
-                });
             },
             (err) => {
                 if (err.id === 'api.context.invalid_param.app_error') {