I want to capture the values of a form to elaborate them in some function before to record them in the DB. I think I should use JavaScript so here we are:
My model:
class Region(models.Model):
number = models.CommaSeparatedIntegerField(max_length=9, unique=True)
city = models.OneToOneField(Community, blank= True, null=True)
resources = models.ManyToManyField(Resource, blank=True)
My form:
class Crea_RegionForm(forms.ModelForm):
quantity = forms.IntegerField(initial=1)
resources=MyModelMultipleChoiceField(Resource.objects.all(),
widget=forms.CheckboxSelectMultiple, label='Risorse')
class Meta:
model = Region
fields = ('number', 'city', 'resources')
def __init__(self, *args, **kwargs):
super(Crea_RegionForm, self).__init__(*args, **kwargs)
quantity = self.fields['quantity'] #costum field
My MyModelMultipleChoiceField:
class MyModelMultipleChoiceField(forms.ModelMultipleChoiceField):
def label_from_instance(self, obj):
return format_html(
'<span style="font-weight:normal">{}</span>', obj.name)
So the html for resources in my page:
Risorse
<ul id="id_resources">
<li>
<label for="id_resources_0">
<input id="id_resources_0" name="resources" type="checkbox" value="1" />
<span style="font-weight:normal">Turism</span>
</label>
</li>
<li>
<label for="id_resources_1">
<input id="id_resources_1" name="resources" type="checkbox" value="2" />
<span style="font-weight:normal">Agricole</span>
</label>
</li>
<li>
#others
</li>
</ul>
and finally my javascript in crea_region.html:
<input type="button" value="Create" id="CreateButton" />
<script type="text/javascript">
<!--
var myform = document.getElementById("crea_region_form");
var number = myform.number.value;
var city_index = document.getElementById("id_city").selectedIndex;
var city;
if (city_index > -1) {
city = document.getElementById("id_city").options[city_index].text;
document.write("city: " + city);
}
var risorse = myform.resources;
var selectedresources = [];
for (var i = 0; i < risorse.length; i++) {
document.write("risorse: " + risorse[i].text);
//document.write("risorse: " + risorse[i].value);
if (risorse[i].selected) selectedresources.push(risorse[i].value);
}
document.write("risorse: " + selectedresources);
var quantity = myform.quantity.value;
var button = document.getElementById("CreateButton");
// to be completed
//-->
</script>
The problem is in resources: a costum ModelMultipleChoiceField that create a list of checkbox. My script can't read the textual and the lines
document.write("risorse: " + risorse[i].text) give=> risorse: undefined
document.write("risorse: " + risorse[i].value) give=> risorse: 1
document.write("risorse: " + selectedresources) give=> risorse:
EDIT
My new script:
...
var risorse = myform.resources;
document.write("risorse: " + risorse[1].nextSibling.innerHTML)
console.log(risorse)
console.log(risorse[1].nextSibling.innerHTML)
var selectedresources = [];
for (var i = 0; i < risorse.length; i++) {
document.write("risorse: " + risorse[i].nextSibling.innerHTML);
if (risorse[i].selected) selectedresources.push(risorse[i].nextSibling.innerHTML);
}
document.write("risorse: " + selectedresources);
document.write("risorse: " + risorse[1].nextSibling.innerHTML) give=> undefined
console.log(risorse) give => RadioNodeList [ <input#id_resources_0>, <input#id_resources_1>, <input#id_resources_2>, <input#id_resources_3>, <input#id_resources_4>, <input#id_resources_5>, <input#id_resources_6>, <input#id_resources_7> ]
console.log(risorse[1].nextSibling.innerHTML) give=> undefined
Sorry, but checkbox doesn't have a text attribute, according to this link, the only attributes are: checked, name, required, value.
You will need to update your code, probably have an object somewhere in your app with key=>text so you can find the text that correspond to specific key, something like this:
var _texts = {'1': 'Text 1', '2': 'Text 2'};
var risorse = myform.resources;
for (var i = 0; i < risorse.length; i++) {
document.write("risorse: " + _texts[risorse[i].value]);
}
Fill free to validate if risorse[i].value exist in texts, you can use the hasOwnProperty function.
Or, you can take advantage of you current html and use the nextSibling:
var risorse = myform.resources;
for (var i = 0; i < risorse.length; i++) {
document.write("risorse: " + risorse[i].nextSibling.innerHTML);
}
Done!! This look working...
My script:
...
var risorse = myform.resources;
var selectedresources = [];
for (var i = 0; i < risorse.length; i++) {
if (risorse[i].checked) selectedresources.push(risorse[i].nextSibling.nextSibling.innerHTML);
}
document.write("risorse: " + selectedresources);
Related
I'm setting up a UI for my application. I would like to have some idea about your guy's experiences.
I need to have multiple selections from different sources.
Input (Sources): Companies, Department. Multiple companies, departments allowed.
Output: People who belong to selected items
For example, I can select company1, company2, and select department1, department2 from a dropdown list.
I select one by one property( Select company1, company2, then go to another dropdown to select department1,2...)
In the end, I have company1,2,3 checked, department 1,2,3 checked.
Then the result will tell me user1...n belong to the selected list above.
The problem is nothing if I have only a few company and department but if coming to be complicated if I have multiple (more than 6 companies and departments). I can't come up with any good UI design for this problem.
I expected the output of (selected(checked company1,2,3... + department1,2,3)) -> result person1,2,3 belong to checked items.
Try the following code:
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<p>Select Company: </p>
<select name="companySelector" multiple>
</select>
<p>Select Department: </p>
<select name="departmentSelector" multiple>
</select>
<p>Persons: </p>
<ul id="persons">
</ul>
<script>
var companySelector = document.querySelector("[name='companySelector']");
var departmentSelector = document.querySelector("[name='departmentSelector']");
var persons = document.getElementById("persons");
var temp, temp2 = 0;
var database = {
company_1: {
c1_department1: ["c1d1person1", "c1d1person2", "c1d1person3", "c1d1person4"],
c1_department2: ["c1d2person1", "c1d2person2", "c1d2person3", "c1d2person4"],
c1_department3: ["c1d3person1", "c1d3person2", "c1d3person3", "c1d3person4"]
},
company_2: {
c2_department1: ["c2d1person1", "c2d1person2", "c2d1person3", "c2d1person4"],
c2_department2: ["c2d2person1", "c2d2person2", "c2d2person3", "c2d2person4"],
c2_department3: ["c2d3person1", "c2d3person2", "c2d3person3", "c2d3person4"]
},
company_3: {
c3_department1: ["c3d1person1", "c3d1person2", "c3d1person3", "c3d1person4"],
c3_department2: ["c3d2person1", "c3d2person2", "c3d2person3", "c3d2person4"],
c3_department3: ["c3d3person1", "c3d3person2", "c3d3person3", "c3d3person4"]
},
company_4: {
c4_department1: ["c4d1person1", "c4d1person2", "c4d1person3", "c4d1person4"],
c4_department2: ["c4d2person1", "c4d2person2", "c4d2person3", "c4d2person4"],
c4_department3: ["c4d3person1", "c4d3person2", "c4d3person3", "c4d3person4"]
},
company_5: {
c5_department1: ["c5d1person1", "c5d1person2", "c5d1person3", "c5d1person4"],
c5_department2: ["c5d2person1", "c5d2person2", "c5d2person3", "c5d2person4"],
c5_department3: ["c5d3person1", "c5d3person2", "c5d3person3", "c5d3person4"]
}
}
for (temp in database) {
companySelector.innerHTML += '<option value="' + temp + '">' + temp.replace(/_/g, " ") + '</option>';
}
companySelector.onchange = function() {
departmentSelector.innerHTML = "";
var selectedCompnies = document.querySelectorAll("[name='companySelector'] option:checked");
for (var i = 0; i < selectedCompnies.length; i++) {
for (temp2 in database[selectedCompnies[i].value]) {
departmentSelector.innerHTML += '<option value="' + temp2 + '" data-company="' + selectedCompnies[i].value + '">' + temp2.replace(/_/g, " ") + '</option>'
}
}
}
departmentSelector.onchange = function() {
persons.innerHTML = "";
var selectedDepartments = document.querySelectorAll("[name='departmentSelector'] option:checked");
for (var i = 0; i < selectedDepartments.length; i++) {
var temp3 = selectedDepartments[i].dataset.company;
var prsonsArray = database[temp3][selectedDepartments[i].value];
for (var x = 0; x < prsonsArray.length; x++) {
persons.innerHTML += "<li>" + prsonsArray[x] + "</li>";
}
}
}
</script>
</body>
</html>
DEMO
I have a page which prompts the user to enter a positive integer from 1 to 9, then the javascript code will generate a multiplication table from the input value all the way to 9. I am getting an error in which I cannot retrieve the value and do a multiplication with it.
function timesTable()
{
var values = document.getElementById('value1');
var showTables = '';
for (var i=1; i<9; i++) {
showTables += values + " x " + i +" = "+ values*i + "\n";
}
var p_tables = document.getElementById('tables').innerHTML = showTables;
}
<label>Enter an integer from 1 to 9 : </label>
<input type="text" size=20 id=value1 name="value">
<button onclick="timesTable()">Generate times table</button><br> <br>
<p id="tables"></p>
Expected result:
You have to take the value of the element not the element itself
var values = document.getElementById('value1').value;
function timesTable()
{
var values = document.getElementById('value1').value;
var showTables = '';
for (var i=1; i<9; i++) {
showTables += values + " x " + i +" = "+ values*i + "<br>";
}
var p_tables = document.getElementById('tables').innerHTML = showTables;
}
<label>Enter an integer from 1 to 9 : </label>
<input type="text" size=20 id=value1 name="value">
<button onclick="timesTable()">Generate times table</button><br> <br>
<p id="tables"></p>
You are trying to multiply the element itself. What you actually want is the value.
function timesTable()
{
var values = document.getElementById('value1').value;
var showTables = '';
for (var i=1; i<9; i++) {
showTables += values + " x " + i +" = "+ values*i + "\n";
}
var p_tables = document.getElementById('tables').innerHTML = showTables;
}
<label>Enter an integer from 1 to 9 : </label>
<input type="text" size=20 id=value1 name="value">
<button onclick="timesTable()">Generate times table</button><br> <br>
<p id="tables"></p>
the javascript line in which you are trying to find value, is wrong as it will return the whole DOM and it's attributes and property.
You just have to find it's value, replace you line
var values = document.getElementById('value1');
with
var values = document.getElementById('value1').value;
This does what you want.
Note that if the user enters something unexpected, it may still fail. You can use an input of type="number" to require an integer (at least in some browsers.)
const userValue = document.getElementById("value1").value;
const p_tables = document.getElementById("tables");
let outputHtml = "";
for(let i = 1; i < 10; i++){
outputHtml += userValue + " x " + i + " = " + userValue * i + "<br/>";
}
p_tables.innerHTML = outputHtml;
you are using input field as text for table generation its better to use Number as input type and to get the value of input field you have to use value function as used in above code and for line break use
<\br>(please ignore '\').
function timesTable()
{
var values = document.getElementById('value1').value;
var showTables = '';
for (var i=1; i<=9; i++) {
showTables += values + " x " + i +" = "+ values*i + "<br>";
}
document.getElementById('tables').innerHTML = showTables;
}
<label>Enter an integer from 1 to 9 : </label>
<input type="Number" size=20 id=value1 name="value">
<button onclick="timesTable()">Generate times table</button><br> <br>
<p id="tables"></p>
I have the following, which shows upcoming matches and allow users to vote who will win
Team names and fixtures are dynamically pulled from db, it is unlikely that number of matches will be the same for each round, thus nr matches vary for each round.
When user made his selection before he clicks submit, I would like to display something like:
You have selected:
Force (Selected) To Win Crusaders(not selected)
Highlanders (Selected) To Win Cheetahs(not selected)
:
I got this working correctly like so:
But Im stuggling to put the "VS" part team not selected in the string. I.E it is easy enough to put the selected teams value in the string but im struggling to get the name from team not selected.
Perhaps this fiddle will give you a better idea to what im trying to achieve:
https://jsfiddle.net/timcoetzee/L9gna8a0/3/
function handleClick() {
// Get all the inputs.
var inputs = makePicks.elements;
var radios = [];
//Loop and find only the Radios
for (var i = 0; i < inputs.length; ++i) {
if (inputs[i].type == 'radio') {
radios.push(inputs[i]);
}
}
myradiovalue = "";
for (var i = 0; i < radios.length; i++) {
if (radios[i].checked) {
if (myradiovalue == "") myradiovalue = radios[i].value
else myradiovalue = myradiovalue + ", " + radios[i].value
}
}
document.getElementById("dispPicks").innerHTML = "YOU HAVE SELECTED " + myradiovalue;
return false;
}
<form name="makePicks">
<label class="green">
<input type="radio" id="x" onclick="handleClick()" name="picks1" value="Chiefs"><span>Chiefs</span>
</label>
<label class="yellow">
<input type="radio" onclick="handleClick()" name="picks1" value="Hurricanes"><span>'Hurricanes'</span>
</label>
<label class="pink">
<input type="radio" name="picks1" value="draw" onclick="handleClick()"><span>Draw</span>
</label>
<br />
<label class="green">
<input type="radio" id="x" onclick="handleClick()" name="picks2" value="Lions"><span>Lions</span>
</label>
<label class="yellow">
<input type="radio" onclick="handleClick()" name="picks2" value="Stormers"><span>'Stormers'</span>
</label>
<label class="pink">
<input type="radio" name="picks2" value="draw" onclick="handleClick()"><span>Draw</span>
</label>
<br />
</form>
<div id="dispPicks"></div>
Any help or advise very much appreciated
function ff() {
var msg = "you have selected:<br/>" ;
var radios = makePicks.querySelectorAll('input[type=radio]');
for(var i = 0; i < radios.length; i++) {
if(radios[i].checked) {
msg += getMessage(radios[i].getAttribute('name')) + "<br/>";
}
}
document.getElementById("dispPicks").innerHTML = msg;
}
function getMessage(nm) {
var rds = makePicks.querySelectorAll('input[type=radio][name=' + nm + ']');
var checked = 0;
for(var i = 0; i < rds.length; i++) {
if(rds[i].checked)
checked = i;
}
if(checked == 2)
return rds[0].value + " (not selected) to draw " + rds[1].value + " (not selected)";
else if(checked == 1)
return "<b>" + rds[1].value + "</b> (selected) to win " + rds[0].value + " (not selected)";
else
return "<b>" + rds[0].value + "</b> (selected) to win " + rds[1].value + " (not selected)";
}
jsfiddle DEMO
I'm having a bit of a problem. I'm trying to create a unordered list from a javascript array, here is my code:
var names = [];
var nameList = "";
function submit()
{
var name = document.getElementById("enter");
var theName = name.value;
names.push(theName);
nameList += "<li>" + names + "</li>";
document.getElementById("name").innerHTML = nameList;
}
<input id="enter" type="text">
<input type="button" value="Enter name" onclick="submit()">
<br>
<br>
<div id="name"></div>
For example, if I post 2 names, Name1 and Name2 my list looks like this:
•Name1
•Name1,Name2
I want it to look like this:
•Name1
•Name2
If you look at your code, you are only creating one li with all your names as the content. What you want to do is loop over your names and create a separate li for each, right?
Change:
nameList += "<li>" + names + "</li>";
to:
nameList = "";
for (var i = 0, name; name = names[i]; i++) {
nameList += "<li>" + name + "</li>";
}
If you are interested in some better practices, you can check out a rewrite of your logic here: http://jsfiddle.net/rgthree/ccyo77ep/
function submit()
{
var name = document.getElementById("enter");
var theName = name.value;
names.push(theName);
document.getElementById("name").innerHTML = "";
for (var I = 0; I < names.length; I++)
{
nameList = "<li>" + names[I] + "</li>";
document.getElementById("name").innerHTML += nameList;
}
}
You are using an array, when you print an array JavaScript will show all the entries of the array separated by commas. You need to iterate over the array to make it work. However you can optimize this:
var names = [];
function displayUserName()
{
var theName = document.getElementById("enter").value;
if (theName == "" || theName.length == 0)
{
return false; //stop the function since the value is empty.
}
names.push(theName);
document.getElementById("name").children[0].innerHTML += "<li>"+names[names.length-1]+"</li>";
}
<input id="enter" type="text">
<input type="button" value="Enter name" onclick="displayUserName()">
<br>
<br>
<div id="name"><ul></ul></div>
In this example the HTML is syntactically correct by using the UL (or unordered list) container to which the lis (list items) are added.
document.getElementById("name").children[0].innerHTML += "<li>"+names[names.length-1]+"</li>";
This line selects the div with the name: name and its first child (the ul). It then appends the LI to the list.
As #FelixKling said: avoid using reserved or ambiguous names.
<div>
<label for="new-product">Add Product</label><br /><br /><input id="new-product" type="text"><br /><br /><button>Add</button>
</div>
<div>
<ul id="products">
</ul>
<p id="count"></p>
</div>
var products = [];
var productInput = document.getElementById("new-product");
var addButton = document.getElementsByTagName("button")[0];
var productListHtml = "";
var abc = 0;
addButton.addEventListener("click", addProduct);
function addProduct() {
products.push(productInput.value);
productList();
}
function productList() {
productListHtml += "<li>" + products[abc] + "</li>";
document.getElementById("products").innerHTML = productListHtml;
abc++;
}
I'm creating some ul and span tags dynamically. Now, I'm trying to add content dynamically as well through a click function. The tags gets created inside a ul but the content doesn't get inserted. Here is the code for it:
<div class="main"></div>
<div class="content-list"><ul class="information"> </ul></div>
Here's the Javascript with the function and the listener:
var $contentHandler = $(".content-list");
var $mainHandler = $(".main");
var $infoHandler = $(".information");
var circleCounter = 1;
$mainHandler.click(function() {
var htmlString = "<li class='" + circleCounter + "'> <span class='circle-color'> var color = <div class='circle-color-input' contentEditable autocorrect='off'> type a color</div> ; </span> <br> <span class='circle-radius'> This is supposed to change </span> <br> <span class='circle'> This is supposed to change </span> </li>"
$infoHandler.append(htmlString);
updateList();
circleCounter++;
});
function updateList() {
var listItems = $('.information').find('li#' + circleCounter);
var len = circleCounter;
for (var i = 0; i < len; i++) {
//We create one reference. This makes looking for one element more effective. Unless we need to search for a particular element
var currentItem = circles[i];
var updateStringRadius = "var radius = " + circleCounter + ";";
var updateStringCircle = "circle (" + circleCounter + " ," + circleCounter + ", radius)";
//This is the div Item for the particular div of each element
var divItem = $(listItems[i]);
var radiusItem = divItem.find("span.circle-radius");
var circleItem = divItem.find("span.circle");
radiusItem.text(updateStringRadius);
circleItem.text(updateStringCircle);
// divItem.text(updateString);
var $circleRadiusHandler = $(".circle-radius");
}
}
Any suggestions in how to make it work. Here's a JSFiddle for that:
http://jsfiddle.net/mauricioSanchez/wL6Np/1/
Thank you kindly,
You just need to change:
var listItems = $('.information').find('li#' + circleCounter);//this searches by id
//To:
var listItems = $('.information').find('li.' + circleCounter);//this searches by class`
//And remove:
var currentItem = circles[i];
Why are you trying to edit your HTML after you've defined it? Why not use a template like this:
var listItemClass = 'someclass',
typeOfColor = 'somecolor',
radiusOne = 'someradius',
radiusTwo = 'anotherradius';
var listItem = "<li class='{0}'> \
<span class='circle-color'> var color = \
<div class='circle-color-input' contentEditable autocorrect='off'> {1}</div> ; \
</span> \
<br> \
<span class='circle-radius'>{2}</span> \
<br> \
<span class='circle'>{3}</span> \
</li>";
listItem.format(listItemClass, typeOfColor, radiusOne, radiusTwo);
With the following format definition:
String.prototype.format = String.prototype.f = function () {
var s = this,
i = arguments.length;
while (i--) {
s = s.replace(new RegExp('\\{' + i + '\\}', 'gm'), arguments[i]);
}
return s;
};
This way, you don't have to worry about finding certain elements within your predefined structure after the fact. You're just replacing certain parts with whatever you specify.