portainer/app/docker/components/datatables/networks-datatable/networksDatatableController.js

import _ from 'lodash-es';

angular.module('portainer.docker')
  .controller('NetworksDatatableController', ['$scope', '$controller', 'NetworkHelper', 'DatatableService',
    function ($scope, $controller, NetworkHelper, DatatableService) {

      angular.extend(this, $controller('GenericDatatableController', {$scope: $scope}));

      this.disableRemove = function(item) {
        return NetworkHelper.isSystemNetwork(item);
      };

      this.state = Object.assign(this.state, {
        expandedItems: []
      })

      /**
       * Do not allow system networks to be selected
       */
      this.allowSelection = function(item) {
        return !this.disableRemove(item);
      }

      this.$onInit = function() {
        this.setDefaults();
        this.prepareTableFromDataset();

        this.state.orderBy = this.orderBy;
        var storedOrder = DatatableService.getDataTableOrder(this.tableKey);
        if (storedOrder !== null) {
          this.state.reverseOrder = storedOrder.reverse;
          this.state.orderBy = storedOrder.orderBy;
        }

        var textFilter = DatatableService.getDataTableTextFilters(this.tableKey);
        if (textFilter !== null) {
          this.state.textFilter = textFilter;
          this.onTextFilterChange();
        }

        var storedFilters = DatatableService.getDataTableFilters(this.tableKey);
        if (storedFilters !== null) {
          this.filters = storedFilters;
        }
        if (this.filters && this.filters.state) {
          this.filters.state.open = false;
        }

        var storedSettings = DatatableService.getDataTableSettings(this.tableKey);
        if (storedSettings !== null) {
          this.settings = storedSettings;
          this.settings.open = false;
        }
        this.onSettingsRepeaterChange();
      };

      this.expandItem = function(item, expanded) {
        item.Expanded = expanded;
      };

      this.itemCanExpand = function(item) {
        return item.Subs.length > 0;
      }

      this.hasExpandableItems = function() {
        return _.filter(this.state.filteredDataSet, (item) => this.itemCanExpand(item)).length;
      };

      this.expandAll = function() {
        this.state.expandAll = !this.state.expandAll;
        _.forEach(this.state.filteredDataSet, (item) => {
          if (this.itemCanExpand(item)) {
            this.expandItem(item, this.state.expandAll);
          }
        });
      };
  }
]);