click assign asset menu, list unassigned employee, assets
select multiple asset, click unassigned asset, goes to selected asset, vice-versa
assets can be filtered, if employee or asset is not selected, alert, otherwise assign
employee with id SM1003 is assigned multiple assets
//asset controller
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using BLL;
using Data;
using Microsoft.AspNetCore.Mvc.Rendering;
using BLL.DTOs;
using System.Net.Http;
using System.Net.Http.Headers;
namespace AssetTracking.Controllers
{
public class AssetController : Controller
{
asset_manager Manager;
List<employee_dto> employees_from_HR;
public AssetController(AssetContext context)
{
Manager = new asset_manager(context);
}
// GET: Asset
public ActionResult Index()
{
var asset_types_list = Manager.get_asset_types();
ViewBag.asset_types_viewbag = new SelectList(asset_types_list.OrderBy(x=>x.Name), "Id", "Name");
var assets = Manager.get_all();
return View(assets);
}
public async Task<IActionResult> Assign()
{
await Load_employees_from_HR();
var employee_without_asset = Manager.find_employees_without_asset(employees_from_HR);
var asset_types_list = Manager.get_asset_types();
ViewBag.asset_types_viewbag = new SelectList(asset_types_list.OrderBy(x => x.Name), "Id", "Name");
var unassigned_asset = Manager.get_unassigned_assets();
ViewBag.unassigned_asset =unassigned_asset.OrderBy(x => x.name);
return View(employee_without_asset);
}
public async Task<IActionResult> Load_employees_from_HR()
{
employees_from_HR = new List<employee_dto>();
//make call to web api
using (var client = new HttpClient())
{
client.BaseAddress = new Uri("http://localhost:11111/");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.
Add(new MediaTypeWithQualityHeaderValue("application/json"));
HttpResponseMessage response = await client.GetAsync("api/values");
if (response.IsSuccessStatusCode)
{
employees_from_HR = await response.Content.ReadAsAsync<List<employee_dto>>();
}
}
return Content("employees are loaded from HR");
}
[HttpPost]
public ActionResult update_assignment(List<asset_assign_class> assignment)
{
Manager.assign_asset(assignment);
//redirect to Index is handled by Ajax on success event in Assign View
return Content("assignment success");
}
}
---------------------------------------------------------------------------------------------------
//manager
using Data;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using BLL.DTOs;
using System.Net.Http;
using System.Net.Http.Headers;
namespace BLL
{
public class asset_manager
{
AssetContext DB;
public asset_manager(AssetContext context)
{
DB = context;
}
public IList<asset_dto> get_all()
{
return DB.Assets.Select(x => new asset_dto
{
Id = x.Id,
AssignedTo = x.AssignedTo,
Description = x.Description,
SerialNumber = x.SerialNumber,
TagNumber = x.TagNumber,
AssetTypeId = x.AssetTypeId.HasValue ? (int)x.AssetTypeId : 0,
ManufacturerId = x.ManufacturerId.HasValue ? (int)x.ManufacturerId : 0,
ModelId = x.ModelId.HasValue ? (int)x.ModelId : 0,
AssetType = x.AssetTypeId.HasValue ? DB.AssetType.FirstOrDefault(y => y.Id == x.AssetTypeId).Name : "",
Model = x.ModelId.HasValue ? DB.Models.FirstOrDefault(y => y.Id == x.ModelId).Name : "",
//try to find manufacture from DB.Asset, if not found, try DB.Models, not found ""
Manufacturer = x.ManufacturerId.HasValue ? DB.Manufacturers.FirstOrDefault(y => y.Id == x.ManufacturerId).Name :
(x.ModelId.HasValue ? DB.Manufacturers.FirstOrDefault(M => M.Id ==
DB.Models.FirstOrDefault(z => z.Id == x.ModelId).ManufacturerId).Name : "")
}).ToList();
}
public IList<asset_short_dto> get_unassigned_assets()
{
return DB.Assets.Where(y=>y.AssignedTo==""||y.AssignedTo==null).
Select(x => new asset_short_dto{
Id = x.Id,
name = x.ModelId.HasValue ? DB.Models.FirstOrDefault(z => z.Id == x.ModelId).Name : "",
type_id = x.AssetTypeId.HasValue ? (int)x.AssetTypeId : 0
}).ToList();
}
public IList<asset_type_dto> get_asset_types()
{
var asset_types = DB.AssetType.Select(x=> new asset_type_dto
{
Id=x.Id,
Name=x.Name
}).ToList();
asset_types.Add(new asset_type_dto { Id = 0, Name = "" });
return asset_types;
}
public void assign_asset(List<asset_assign_class> assignment)
{
foreach(var item in assignment)
{
DB.Assets.FirstOrDefault(x => x.Id == item.id).AssignedTo = item.employee_id;
DB.SaveChanges();
}
}
public IList<employee_dto> find_employees_without_asset(List<employee_dto> employees)
{
foreach(var item in DB.Assets)
{
if(item.AssignedTo!="")
{
var employee_with_asset = employees.FirstOrDefault(x => x.Id == item.AssignedTo);
if (employee_with_asset != null)
{
employees.Remove(employee_with_asset);
}
}
}
return employees;
}
}
}
--------------------------------------------------------------------------
//View
@model IEnumerable<BLL.DTOs.employee_dto>
<h2>Asset Assignment</h2>
<script src="~/lib/jquery/dist/jquery.js"></script>
<script type="text/javascript">
var employee_list = [];
var unassigned_asset_list = []
var selected_asset_list = []
var assignment_list = []
$(document).ready(function () {
//populate unassigned employee listbox
@foreach (var item in Model)
{
<text>
employee_list.push(new employee_class('@item.Id', '@item.name'));
</text>
}
populate_employee();
//populate unassigned assets listbox
@foreach (var item in ViewBag.unassigned_asset)
{
<text>
unassigned_asset_list.push(new asset_class('@item.Id', '@item.name', '@item.type_id'));
</text>
}
populate_asset();
});
function employee_class(id, name) {
this.id = id;
this.name = name;
}
function asset_class(id, name, type) {
this.id = id;
this.name = name;
this.type = type;
}
function assignment_class(id, employee_id) {
this.id = id;
this.employee_id = employee_id;
}
//delete element from array
function array_delete(array, element_id) {
//find index of the element going to be deleted in the arry
indexes = $.map(array, function (obj, index) {
if (element_id == obj.id) {
return index;
}
})
//return deleted element as asset class
deleted_item = array.splice(indexes[0], 1);
return new asset_class(deleted_item[0].id, deleted_item[0].name, deleted_item[0].type);
}
function populate_employee() {
$.each(employee_list, function (index, value) {
$('#ux_employee_unassigned').append('<option value=' + value.id + '>' + value.name + '</option>');
});
}
//populate unassigned asset listbox
function populate_asset() {
$.each(unassigned_asset_list, function (index, value) {
$('#ux_unassigned_asset').append('<option value=' + value.id + '>' + value.name + '</option>');
});
}
//populate unassigned asset listbox based on type
function populate_asset_baseon_type(_type) {
$.each(unassigned_asset_list, function (index, value) {
if (value.type == _type) {
$('#ux_unassigned_asset').append('<option value=' + value.id + '>' + value.name + '</option>');
}
})
}
//populate selected asset listbox
function populate_asset_selected() {
$.each(selected_asset_list, function (index, value) {
$('#ux_selected_asset_listbox').append('<option value=' + value.id + '>' + value.name + '</option>');
});
}
//populate selected asset listbox based on type
function populate_asset_selected_basedon_type(_type) {
$.each(selected_asset_list, function (index, value) {
if (value.type == _type) {
$('#ux_selected_asset_listbox').append('<option value=' + value.id + '>' + value.name + '</option>');
}
});
}
//asset type dropdownlist change event
function asset_types_onchange() {
$('#ux_unassigned_asset').empty();
$('#ux_selected_asset_listbox').empty();
//if selected type = "", populate with all assets
if ($('#asset_types_viewbag :selected').text() == "") {
populate_asset();
populate_asset_selected();
}
//populate unassigned assets listbox based on asset type
else {
populate_asset_baseon_type($('#asset_types_viewbag').val());
populate_asset_selected_basedon_type($('#asset_types_viewbag').val());
}
}
//unassigned asset listbox onselect event, move asset to selected listbox
function unassigned_asset_listbox_onchange() {
//delete selected item from uassigned_asset_listbox
deleted_element = array_delete(unassigned_asset_list, $("#ux_unassigned_asset").val());
//add selected item to selected_asset_listbox
selected_asset_list.push(deleted_element);
//sort selectd asset list
selected_asset_list.sort(function (a, b) {
var aName = a.name.toLowerCase();
var bName = b.name.toLowerCase();
return ((aName < bName) ? -1 : ((aName > bName) ? 1 : 0));
});
//repopulate unassigned_asset_listbox
asset_types_onchange();
}
//selected asset listbox onselect event, return asset to unassigned listbox
function selected_asset_listbox_onchange() {
//delete selected item from selected asset listbox
deleted_element = array_delete(selected_asset_list, $("#ux_selected_asset_listbox").val());
//add selected item to unassigned asset listbox
unassigned_asset_list.push(deleted_element);
//sort unassigned asset list
unassigned_asset_list.sort(function (a, b) {
var aName = a.name.toLowerCase();
var bName = b.name.toLowerCase();
return ((aName < bName) ? -1 : ((aName > bName) ? 1 : 0));
});
//repopulate unassigned_asset_listbox and selected_asset_listbox
asset_types_onchange();
}
//confirm button click event
function button_confirm() {
if ($('#ux_employee_unassigned').val() == undefined) { alert("please select employee"); return }
if (selected_asset_list.length == 0) { alert("please select asset"); return}
//create asset assignment to selected employee
$.each(selected_asset_list, function (index, value) {
assignment_list.push(new assignment_class(value.id, $('#ux_employee_unassigned').val()));
})
//send assignment to controller
$.ajax({
type: "POST",
url: '/Asset/update_assignment',
data: { "assignment": assignment_list },
success: function (result) {
//alert("success");
window.location.replace("/Asset/Index");
},
error: function (xhr) {
alert("Error button confirm Assign view");
}
});
};
</script>
<div>
<div class="col-md-3">
<center>@Html.Label("select unassigned employee")</center>
<select size="20" id="ux_employee_unassigned" class="form-control"></select>
</div>
<div class="col-md-6">
<center> @Html.Label("select asset type")</center>
<center> @Html.DropDownList("asset_types_viewbag", null, htmlAttributes: new { @class = "form-control", onchange = "asset_types_onchange()" })</center>
<br />
<div class="row">
<div class="col-md-6">
<center> @Html.Label("select unassigned asset")</center>
<select size="15" id="ux_unassigned_asset" class="form-control" onchange="unassigned_asset_listbox_onchange()"></select>
</div>
<div class="col-md-6">
<center> @Html.Label("return selected asset")</center>
<select size="15" id="ux_selected_asset_listbox" class="form-control" onchange="selected_asset_listbox_onchange()"></select>
</div>
</div>
</div>
<div class="col-md-3">
<br />
<br />
<br />
<br />
<br />
<br />
<center> <button onclick="button_confirm()" type="button" class="btn btn-success">Assign selected assets<br />to selected employee</button></center>
<br />
<br />
<br />
<br />
<center> <button onclick="button_cancel()" type="button" class="btn btn-danger">Cancel assignment</button></center>
<br />
<br />
<br />
<br />
<br />
<br />
<br />
</div>
</div>
---------------------------------------------------------------------
//asset_assign_class
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace BLL.DTOs
{
public class asset_assign_class
{
public int id { get; set; }
public string employee_id { get; set; }
}
}
reference:
http://stackoverflow.com/questions/12944329/add-onclick-function-to-a-submit-button
http://stackoverflow.com/questions/8893111/how-do-i-disable-input-element-whose-type-is-submit
https://www.w3schools.com/tags/att_input_required.asp
http://stackoverflow.com/questions/1594952/jquery-disable-enable-submit-button
http://stackoverflow.com/questions/2950152/iterate-through-select-options
https://www.w3schools.com/jsref/prop_option_disabled.asp
http://stackoverflow.com/questions/40422727/disable-drop-down-options-based-on-selected-value-with-jquery
http://stackoverflow.com/questions/1263852/prevent-form-redirect-or-refresh-on-submit
http://stackoverflow.com/questions/12944329/add-onclick-function-to-a-submit-button
http://stackoverflow.com/questions/23071795/how-to-add-required-attribute-to-mvc-5-razor-view-text-input-editor
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