SY.jsx

          {
            languageChoices.map(choice => (
              filterValues.languageCode === choice.id &&
              <Datagrid {...props} ids={this.state[choice.id]}>
                <TextField source="text" />
                <ReferenceField source="contentId" reference="contents">
                  <TextField source="title" />
                </ReferenceField>
                <BooleanField source="keepable" />
                <TextField source="languageCode" />
                <BooleanField source="notificationEnabled" />
                <TextField source="startTime" />
                <TextField source="endTime" />
                <EditButton />
              </Datagrid>
            ))
          }