Grails Ajax table - how to implement? - ajax

I've input:
<g:form role="search" class="navbar-form-custom" method="post"
controller="simple" action="addEntry">
<div class="form-group">
<input type="text" placeholder="Put your data HERE"
class="form-control" name="InputData" id="top-search">
</div>
</g:form>
And table:
<table class="table table-striped table-bordered table-hover " id="editable">
<thead>
<tr>
<th>Name</th>
<th>Created</th>
</tr>
</thead>
<tbody>
<g:render template="/shared/entry" var="entry"
collection="${entries}" />
</tbody>
</table>
Controller:
#Secured(['ROLE_USER', 'ROLE_ADMIN'])
class SimpleController {
def springSecurityService
def user
def index() {
user = springSecurityService.principal.username
def entries = Entry.findAllByCreatedBy(user)
[entries: entries]
}
def addEntry(){
def entries = Entry.findAllByCreatedBy(user)
render(entries: entries)
}
}
I just want to dynamically update the table with data from input string.
What is the best way?
Will be grateful for examples/solutions

You can update the table using AJAX with Grail's formRemote tag.
Input form
<g:formRemote
name="entryForm"
url="[controller: 'entry', action: 'add']"
update="entry">
<input type="text" name="name" placeholder="Your name" />
<input type="submit" value="Add" />
</g:formRemote>
HTML table
<table>
<thead>
<tr>
<th>Name</th>
<th>Created</th>
</tr>
</thead>
<tbody id="entry">
<g:render
template="/entry/entry"
var="entry"
collection="${entries}" />
</tbody>
</table>
Entry template
<tr>
<td>${entry.name}</td>
<td>${entry.dateCreated}</td>
</tr>
Controller
import org.springframework.transaction.annotation.Transactional
class EntryController {
def index() {
[entries: Entry.list(readOnly: true)]
}
#Transactional
def add(String name) {
def entry = new Entry(name: name).save()
render(template: '/entry/entry', collection: Entry.list(), var: 'entry')
}
}
How it works
When the add button is pressed the add controller method is called. The controller method creates the domain instance and renders the _entry.gsp template. But instead of refreshing the browser page, the template is rendered to an AJAX response. On the client side, the rendered template is inserted into the DOM inside of the tbody element with id entry, as defined in the formRemote tag by the update attribute.
Note that with this approach all of the entries are re-rendered, not just the new one. Rendering only the new one is a bit trickier.
Resources
Complete source code for my answer
Grails AJAX

Just to give you direction ( you are not showing any of your controller and js code.):
Create an action your controller ( the responsible controller) that will render the template /shared/entry by passing entries collection.
On submit of the form make ajax call to the action defined above, then replace the tbody html by the returned view fragment(template).

Related

Why "checked" attribute doesn't apply to my Thymeleaf's checkboxes?

I was working with Spring and Thymeleaf when I've encountered the following problem: I need a Form object, which has a list of items (Item) as attribute; I'm using an html form to print the Name of the Item, and to generate a checkbox for each Item (any checkbox's value is the corresponding item's id).
The form works correctly, sending to the Controller a list of item's ids corresponding to the checked checkboxes.
However, now, I'm trying to check some checkbox upon the occurrence of a condition (if itemIds, which is a list, contains the current item's id). For that I'm using:
th:checked="${#lists.contains(itemIds, item.id)}"/>
But it doesn't work (checkbox are all unchecked).
I tried also with a "dummy test":
th:checked="${1 == 1 ? 'checked' : ''}"/>
But, again, all the checkbox remain unchecked; the "checked" attribute is ignored as you can see in this example of the rendered HTML:
<input type="checkbox" value="12" class="chkCheckBox" id="ids1" name="ids">
What am I doing wrong? What am I missing here?
form.html
<form th:action="#{${uriBase}+'/new/' + ${date}}"
method="POST" th:object="${form}">
<div class="table-responsive">
<table class="table">
<thead class=" text-primary">
<tr>
<th>Name</th>
<th><input type="checkbox" th:id="checkAll"/>Check</th>
</tr>
</thead>
<tbody>
<tr th:each="item : ${items}">
<td th:text="${item.name}"></td>
<td>
<input type="checkbox" th:field="*{ids}"
th:value="${item.id}" th:class="chkCheckBox"
th:checked="${#lists.contains(itemIds, item.id)}"/>
</td>
</tr>
</tbody>
</table>
<button type="submit" class="btn btn-primary pull-right">Submit</button>
<div class="clearfix"></div>
</div>
</form>
Form class
public class Form implements Serializable {
private List<Long> ids;
//getter and setter
}
Thank you in advance.
I have been struggling with this as well. If you use the th:field it will override the checked and value options, as Xaltotun mentions, because it is trying to get the value and checked option from the field/form.
If you change it to th:name it should work how you want...
But this forum seems to be helpful for doing it with th:feild.
As far as I understand there are 2 issues in your post:
The dummy example is incorrect.
th:checked="${1 == 1 ? 'checked' : ''}"
In fact the value must true or false not 'checked'. If you try with
th:checked="${1 == 1}"/>
It will work.
If you set th:field="*{ids}" then the checkbox should be trying to get the value from the field item.ids and will not use the "th:checked" or "th:value" properties. Does the item has the field ids?

Angular 2 doesn't update my view after I add or edit item

I've finally made my app in angular 2. Everything is solved, except one thing. When I add item into my table or edited it, I can't see the change until I refresh page or click for example next page button (I have implemented pagination). I included:
<script src="node_modules/systemjs/dist/system-polyfills.js"></script>
<script src="node_modules/angular2/bundles/angular2-polyfills.js"></script>
in this order. My method for adding item is very simple:
addDepartment(item){
this._departmentService.addDepartment(item)
.subscribe(departments => this.department = departments.json());
this.getAll();}
Whhen I add item, and put breakpoint on get method, It is called correctly and I get right information from my DB, but I don't know why view isn't refreshed then. Do you have any idea why is it happened? Thanks for suggestions!
EDIT: department is just department: Department, where Department is interface with properties (departmentNo, departmentName, departmentLocation). The view for adding item looks like:
<form [ngFormModel]="myForm"
(ngSubmit)="addDepartment(newItem); showAddView=false" [hidden]="!showAddView" align="center">
<div>
<label for="editAbrv">Department name:</label><br>
<input type="text" [(ngModel)]="newItem.departmentName" [ngFormControl]="myForm.controls['departmentName']" >
<div *ngIf="myForm.controls['departmentName'].hasError('required')" class="ui error message"><b style="color:red;">Name is required</b></div>
</div>
<br/>
<div>
<label for="editAbrv">Department Location:</label><br>
<input type="text" [(ngModel)]="newItem.departmentLocation" [ngFormControl]="myForm.controls['departmentLocation']" >
<div *ngIf="myForm.controls['departmentLocation'].hasError('required')" class="ui error message"><b style="color:red;">Location is required</b></div>
</div>
<br/>
<div>
<button type="submit" [disabled]="!myForm.valid" class="ui button">Add item</button>
<button><a href="javascript:void(0);" (click)="showHide($event)" >
Cancel
</a></button>
</div>
</form>
and my department table is:
<table align="center">
<thead>
<tr>
<td>#</td>
<td><strong>Department</strong></td>
<td><strong>Department Location</strong></td>
<td><strong>Edit</strong></td>
<td><strong>Delete</strong></td>
</tr>
</thead>
<tbody>
<tr *ngFor="#department of departments | searchString:filter.value ; #i = index">
<td>{{i + 1}}.</td>
<td> {{department.departmentName}}</td>
<td>{{department.departmentLocation}}</td>
<td>
<button class="btnEdit" (click)="showEdit(department)">Edit</button>
</td>
<td>
<button class="btnDelete" (click)="deleteDepartment(department)" >Delete</button>
</td>
</tr>
</tbody>
</table>
With this code, you don't wait for the response of the addDepartment request and execute the getAll request directly.
addDepartment(item){
this._departmentService.addDepartment(item)
.subscribe(departments => this.department = departments.json());
this.getAll();
}
You should move the call to getAll within the callback registered in subscribe. At this moment, the addDepartment is actually done and you can reload the list...
The code could be refactored like this (it's a guess since I haven't the content of addDepartment and getAll methods):
addDepartment(item){
this._departmentService.addDepartment(item)
.subscribe(addedDepartment => {
this.department = this.getAll();
});
}
This issue occurs because of the way you're using departmant and how change detection works. When you use *ngFor="#department of departments", angular change detection looks for a object reference on departments array. When you update/change one of the items in this array object reference to the array itself doesn't change, so angular doesn't run change detection.
You have few options:
1) change reference of the array by replacing it with new array with updated values
2) tell angular explicitly to run change detection (which I think is easier in your case):
constructor(private _cdRef: ChangeDetectorRef) {...}
addDepartment(item){
this._departmentService.addDepartment(item)
.subscribe(departments => this.department = departments.json());
this.getAll();
this._cdRef.markForCheck();
}

spring mvc mapping - send value between controllers

I have got webapp in spring 3 mvc. The case is that I have index page with url, when user click on them should be display another page with details of choosed information. Now the details page is shown but without any information (on index page is creating model with correct variable but not in details controller - in debug mode).
index controller method:
#RequestMapping(value="/{site}", method = RequestMethod.GET)
public String showDetails(#RequestParam(value = "site", required = true) String site, Model model){
Catalog product = catalogEndpoint.getByTitle(site);
model.addAttribute("product", product);
return "details";
}
index html:
<form action="#" th:object="${product}" method="post" th:action="#{/details}">
<table border="0" width="600" th:each="sb, poz : ${product}" >
<tr >
<td rowspan="3" width="20"><span th:text="${poz.count}"></span></td>
<td>
<a th:href="#{/details/(site=${sb.tytul})}" th:value="${site}"><span th:text="${sb.tytul}"></span></a>
</td>
</tr>
<tr >
<td><span th:text="${sb.adres}"></span></td>
</tr>
<tr>
<td>category:<b><span th:text="${sb.category.name}"></span></b></td>
</tr>
</table>
</form>
details controller method:
#RequestMapping(value = "details/{site}", method = RequestMethod.GET)
public String showHomePage(#PathVariable(value = "site") String site, Model model){
model.addAttribute("product");
return "details";
}
details html:
<form th:object="${product}" method="get" th:action="#{/details}">
<table border="1" width="600" >
<tr >
<td ><span th:text="${tytul}"></span></td>
<td>
<span th:text="${opis}"></span>
</td>
<td><span th:text="${adres}"></span></td>
</tr>
</table>
</form>
I don't have any ideas how to map the details site (I tried a lot of solution but nothing). Thanks for help.
With thymeleaf, using th:object, you need to reference the fields of that object with *{}
<form th:object="${product}" method="get" th:action="#{/details}">
<table border="1" width="600" >
<tr >
<td ><span th:text="*{tytul}"></span></td>
<td>
<span th:text="*{opis}"></span>
</td>
<td><span th:text="*{adres}"></span></td>
</tr>
</table>
</form>
assuming tytul, opis, and adres are fields of product. Unless it's a type, don't forget
Catalog product = catalogEndpoint.getByTitle(site);
model.addAttribute("product", product);
in your details controller method, otherwise you won't have a Catalog model attribute.
inside your details controller where are you setting product object in your model ?
model.addAttribute("product");
is just settingstring object "product", fetch the product object and set it in details controller like you have done in showDetails method
Change
model.addAttribute("product");
To
Catalog product = catalogEndpoint.getByTitle(site);
model.addAttribute("product", product);
in "showPage" method.

How to modify a record displaying a form in a view

I am trying to accomplish the following:
I have a list of fruits, that are stored in a table with two columns "id", "name" and "color".
Next to each fruit, I got a "modify" button. What I want to do here is being able to display the fruit in a form and being able to modify the "name" and "color" attributes.
I don't understand why, but when I click the "modify" button, the form is being displayed but the properties of the fruits that I clicked are not.
Here is the code:
Controller:
#RequestMapping(value = "/fruit/modify", method = RequestMethod.POST)
public String modifyFruit( #RequestParam("id") int id, ModelMap model) {
Fruit fruit = fruitManager.getFruitById(id);
model.addAttribute("fruit", fruit);
return "redirect:/modifyfruit";
}
#RequestMapping(value = "/modifyfruit", method = RequestMethod.GET)
public String showAddForm(#ModelAttribute("fruit") Fruit fruit, ModelMap model) {
model.addAttribute("fruit", fruit);
return "/secure/modifyfruit";
}
Here is the modify button that I am displaying next to each fruit in my list:
<td>
<c:url var="modifyUrl" value="/fruit/modify.html"/>
<form id="${fruitForm}" action="${modifyUrl}" method="POST">
<input id="id" name="id" type="hidden" value="${fruit.id}"/>
<input type="submit" value="modify"/>
</form>
</td>
Here is the modifyfruit.jsp that I am using to display the form that I want to populate:
<body>
<form:form method="post" commandName="fruit">
<table width="95%" bgcolor="f8f8ff" border="0" cellspacing="0"
cellpadding="5">
<tr>
<td align="right">Name:</td>
<td><form:input path="title" value="${fruit.name}"/></td>
</tr>
<tr>
<td align="right">Color:</td>
<td><form:input path="color" value="${fruit.color}"/></td>
</tr>
</table>
<br>
<input type="submit" align="center" value="Post Ad">
</form:form>
</body>
Your redirect is simply going to that new URL without any request params being added. Therefore your fruit ID is being discarded, which is why nothing gets displayed.
The redirect seems pointless - why not return the same view name string as the GET version instead?
To redirect with the params, try:
return "redirect:/modifyfruit?id=" + id;
EDIT: just noticed you have added the Fruit to the model - this does not get transferred in a redirect and wouldn't work anyway.

Adding controls dynamically in mvc3 using Editortemplates

In my program I am trying to add extra controls dynamically on button click.Is it possible by using EditorTemplates?
This is my EditorTemplates
#model chPayroll.Models.HREducation.HRInfo
#{
var list = (IEnumerable<SelectListItem>)TempData["PassedDivision"];
var list1 = (IEnumerable<SelectListItem>)TempData["Country"];
}
#Html.HiddenFor(x => x.StaffId)
<tr>
<td>#Html.DropDownListFor(x => x.Country, list1, "-select-")</td>
<td>#Html.TextBoxFor(x=>x.Board)</td>
<td>#Html.TextBoxFor(x=>x.Level)</td>
<td>#Html.TextBoxFor(x=>x.PassedYr)</td>
<td>#Html.DropDownListFor(x=>x.PassedDivision,list,"-selected-")</td>
<td><input type="file" name="file"></td>
</tr>
Now I want to add all controls dynamically on button click.
I am calling listeditor from the view.
#model chPayroll.Models.HREducation.HRInfo
<div align="left">
<fieldset style="left:0px">
#using (Html.BeginForm("Addcontrols", "HREduInformation", FormMethod.Post))
{
<table >
<tr>
<th >Country</th>
<th>Board</th>
<th>Level</th>
<th>Passed Year</th>
<th>Division</th>
<th>certificate</th>
</tr>
#Html.EditorFor(m => m.listInfoeditor)
</table>
<input type="submit" value="Add New" id="savechanges" />
}
</fieldset>
</div
You can use Ajax to grab the rendered control Html.
Editing a variable length list
You can also go one step further and avoid the ajax call by using an already rendered template on the client side

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