use api for slackchannels

resource/js/components/PageComment/CommentForm.js

@@ -42,7 +42,7 @@ export default class CommentForm extends React.Component {
       errorMessage: undefined,
       hasSlackConfig: config.hasSlackConfig,
       isSlackEnabled: false,
-      slackChannels: this.props.slackChannels,
+      slackChannels: '',
     };
 
     this.growiRenderer = new GrowiRenderer(this.props.crowi, this.props.crowiOriginRenderer, {mode: 'comment'});
@@ -58,6 +58,15 @@ export default class CommentForm extends React.Component {
     this.onSlackOnChange = this.onSlackOnChange.bind(this);
   }
 
+  componentWillMount() {
+    this.props.crowi.apiGet('/pages.updatePost', {path: this.props.pagePath})
+      .then(res => {
+        if (res.ok) {
+          this.setState({slackChannels: res.updatePost.join(', ')});
+        }
+      });
+  }
+
   updateState(value) {
     this.setState({comment: value});
   }
@@ -299,7 +308,6 @@ CommentForm.propTypes = {
   revisionId: PropTypes.string,
   pagePath: PropTypes.string,
   editorOptions: PropTypes.object,
-  slackChannels: PropTypes.string,
 };
 CommentForm.defaultProps = {
   editorOptions: {},