get_my/client/AdminMgmt/CategoryMgMt/catMgmtForm.js

import { Categories } from '../../../imports/api/category.js';

Template.catMgmtForm.onCreated(function() {
    this.subscribe("myCategories");
});

Template.catMgmtForm.onRendered(function() {
    Session.set("catNameMiss", false);
});

Template.catMgmtForm.helpers({
    catNameErr: function() {
        return Session.get("catNameMiss");
    },
});

Template.catMgmtForm.events({
    'click .saveCatMgmt' (event) {
        event.preventDefault();
        let catName = $("#catNameInp").val();
        if (catName == null || catName == "") {
            Session.set("catNameMiss", true);
            return;
        } else {
            Meteor.call('add.category', catName, function(err, result) {
                if (err) {
                    // console.log("    ERROR: Can't add category: " + err);
                } else {
                    // console.log("    SUCCESS adding category.");
                    $("#catNameInp").val("");
                }
            });
        }
    },
    'click .cancelCatMgmt' (event) {
        event.preventDefault();
        $("#catNameInp").val("");
    }
});