I have a question, on how to best store local values of some form fields.
In my website, users use the keypad to keep a tally count of items. They can enter a label for the items they count. The problem is that each user apply different labels for their needs - and, each time they visit the labels are blank.
My sites are running through site44.com, which does not allow the use of server side php. So, in my research, I think using HTML5 localstorage may allow a user to keep the label after the exit the site?
Is this a correct interpretation?
Can someone give me a guide if I have, say 3 inputs - with different ids - how to set up the script?
you can use the local storage like this :
var fn = document.getElementById("firstname").value;
localStorage.setItem("firstname", fn);
var ln = document.getElementById("lastname").value;
localStorage.setItem("lastname", ln);
var em = document.getElementById("email").value;
localStorage.setItem("email", em);
thus the clients browser will have these items set in their local storage.
Now if a user visits the website afterwards. you can check for the value of localStorage and find the items of your need.
Suppose on users' next visit you want to send him a greet message ( he has not logged in ofcourse ) you can use a script like this below:
var name = localStorage.getItem("firstname");
alert("Hello"+name);
Related
I'd like to build a website which has the following features:
There should be a few fields which store numerical values.
These fields should be editable by anyone who visits the site
A second order feature which would be nice, but isn't necessary
It would be nice if when multiple people are visiting the site and one visitor updates a value, the webpage reloads for all visitors once the value is saved, updating the value seen for all users
How would I go about implementing the above?
I'm not sure what terms I should even be googling to approach this question, so any advice is appreciated.
To your first question:
const editMe = document.getElementById('edit-me');
editMe.addEventListener('input', () => {
const editedToInt = Number(editMe.innerHTML);
if (!Number.isInteger(editedToInt)) {
// Value is invalid
editMe.style.border = "2px solid red";
}
else {
// Value is valid. Do something with it...
editMe.style.border = "inherit";
}
})
<div id="edit-me" contenteditable>100</div>
The user can edit the content and only numbers are allowed.
To your second question:
You could save the value which the user has typed in your database. Also you need to use Ajax to check the value in your database every 5 seconds. If the value in your database is different than the value in the DOM, you will replace it.
Today I wanted to greet the user in my app by name, but I did not manage to get it.
I found System.User, but lacking some examples I did not manage to get the info I needed. I saw no possibility to get the current user (id) to call User.GetFromId().
Can you guide me into the right direction? Have I been on the wrong path?
Okay, So first things first, getting access to a user's personal information is a privilege you have to request, so in your store app's Package.appxmanifest, you'll need to enable the User Account Information capability in the Capabilities tab.
Next, you'll want to be using the Windows.System.User class, not the System.User (System.User isn't available to Windows store apps, which you appear to be discussing given the tags you provided for your question)
Third, you'll want to request personal information like this.
IReadOnlyList<User> users = await User.FindAllAsync(UserType.LocalUser, UserAuthenticationStatus.LocallyAuthenticated);
User user = users.FirstOrDefault();
if (user != null)
{
String[] desiredProperties = new String[]
{
KnownUserProperties.FirstName,
KnownUserProperties.LastName,
KnownUserProperties.ProviderName,
KnownUserProperties.AccountName,
KnownUserProperties.GuestHost,
KnownUserProperties.PrincipalName,
KnownUserProperties.DomainName,
KnownUserProperties.SessionInitiationProtocolUri,
};
IPropertySet values = await user.GetPropertiesAsync(desiredProperties);
foreach (String property in desiredProperties)
{
string result;
result = property + ": " + values[property] + "\n";
System.Diagnostics.Debug.WriteLine(result);
}
}
When you call GetPropertiesAsync, your user will get a permission prompt from the system asking them if they want to give you access to that. If they answer 'No', you'll get an empty user object (but you'll still get a unique token you can use to distinguish that user if they use the app again).
If they answer yes, you'll be able to get access to the properties below, and various others.
See the UserInfo Sample Microsoft provided for more examples.
Hopefully this question isn't too naive...
I'm attempting to implement The Giving Lab API in order to allow users of my site to donate to charity.
Using a URL such a this:
https://www.thegivinglab.org/api/donation/start?donationtype=0&amount=10&charityid=84ed3c54-6d8c-41c5-8090-f8ec800f45a7&returnurl=mywebsite.com/
the user is directed to the donation page and then returned to the returnURL after the donation has been made.
I want to be able to add how much the user donated to my databases if they successfully complete a payment. Would it be possible to use the returnURL to do this? Ie could I use a returnURL in the form of mywebsite.com?q="amount_donated" and then use this to update my databases?
I can see that this would allow someone to update my databases by just entering the returnURL into their browser.
Is there a generally better method, that removes this problem?
Many thanks.
Dutch banks use a thing called a sha-sign (and they're probally not the first)
All you have to do is add a key which only you can know:
function makeSecureCode($var1, $var2){
$secretCode = 'example';
$secretKey = '';
$secretKey.= $var1 . $secretCode;
$secretKey.= $var2 . $secretCode;
return sha1($secretKey);
}
Then make the url like this: ?var1=foo&var2=bar&key=5e8b73da0b20481c1b4a285fb756958e4faa7ff1
And when you process the code after payment, makeSecureCode( $_GET['var1'], $_GET['var2']) should be equal to $_GET['key']. If not, someone changed it.
This is a simplefied version with only two vars. You can make it have more input arguments, or an array, whichever you prefer.
I am absolute beginner to drupal.
I have added a contact form (using Webform module).
Now I want to save the data entered in the form. But I am lost. I have searched over internet, found db_query() is used to query database.
But I dont know where to write the php code. Please help me or if you know any link,please give me.
The tables you'll be most interested in are webform, webform_submissions, webform_submitted_data and webform_component. Have a look at those tables and it becomes very obvious how they're linked together.
You'll want to look at the Drupal 7 Database API to learn how to use the query system but here's an example to get you going:
/* Get a list of all submissions from webform for the node with ID (`nid`) of 1 */
$nid = 1;
$submissions = db_select('webform_submissions', 'ws')
->fields('ws')
->condition('nid', $nid)
->execute();
/* If you want to use db_query and a plain old SQL statement instead you'd do it like this:
$submissions = db_query('SELECT * FROM webform_submissions WHERE nid = :nid', array('nid' => $nid)); */
/* Loop through the submissions and load up the submitted data for each */
$submission_data = array();
foreach ($submissions as $submission) {
$query = db_select('webform_submitted_data', 'wsa')
->fields('wc', array('name'))
->fields('wsa', array('data'))
->condition('sid', $submission->sid);
/* Join in the component table to get the element label */
$query->join('webform_component', 'wc', 'wc.nid = wsa.nid AND wc.sid = wsa.cid');
$submission_data[] = $query->execute()->fetchAllKeyed();
}
At the end of that code you'll have an array ($submission_data), which contains a list of arrays of submission data for the provided node. Each of those arrays' items has a key of the component label, and a value of the submitted user value.
Hope that helps
It's worth noting that for most normal use cases you'll never need to look at the databases or do any kind of coding. The UI allows you to view submissions of a form (and see what was submitted). You can also configure the Webform to send you a copy of each submission (via email)... There is a lot you can do without "looking under the hood" or messing with the database in any way.
If you are really new to Drupal and Webforms, I just thought I'd point that out. There are a lot of tabs in the UI which might easily be overlooked.
Webform has Views support, so you probably don't really need to write database queries to generate the report you want.
I need to retrieve calendar information by invoking the Exchange Web Service in BPOS. I'm using a CalendarView with a PropertySet to retrieve as little data as possible. However, property sets seems to be limited. I need the EmailAddress of the one who made the calendar appointment so I thought I could use the AppointmentSchema.Organizer in the PropertySet.
When fetching a whole appointment I can get the e-mail through appt.Organizer.EmailAddress. But with the code below the Organizer.EmailAddress is always null. I've enabled the trace and checked it and only the Organizer.Name property is sent, nothing else. Does anyone have a solution on how to get the EmailAddress when using a PropertySet?
CalendarView view = new CalendarView(dtFrom, dtTo);
view.PropertySet = new PropertySet(ItemSchema.Subject);
view.PropertySet.Add(ItemSchema.Id);
view.PropertySet.Add(AppointmentSchema.Start);
view.PropertySet.Add(AppointmentSchema.End);
view.PropertySet.Add(AppointmentSchema.Organizer); // This should contain EmailAddress but it doesn't
Mailbox mailbox = new Mailbox("myemail#test.ab");
FolderId id = new FolderId(WellKnownFolderName.Calendar, mailbox);
CalendarFolder folder = CalendarFolder.Bind(service, id);
FindItemsResults<Appointment> findResults = folder.FindAppointments(view);
This should work (does for me):
service.FindAppointments(WellKnownFolderName.Calendar, new CalendarView(start, end)).Where(s => DateTime.Now < s.Start);
service.LoadPropertiesForItems(appointments, PropertySet.FirstClassProperties);
As best as I have been able to figure out EWS is a little buggy when it comes to populating the full EmailAddress details both in Appointments for Organizer and for other things like "EmailMessage.From". When you do a query for multiple items, you don't get the EmailAddress properties being fully populated. E.g. using APIs like:
Folder.FindItems
ExchangeService.FindAppointments
I find that only the display name in the EmailAddress fields gets populated.
To get the EmailAddress fully populated I find I need to load/bind to the specific item and specify the relevant EmailAddress property, e.g. AppointmentSchema.Organizer in your case. So although you specify exactly the same property to load, you are loading using a single item call rather than a bulk query. E.g. using:
ServiceObject.Load
Which is available for both Appointment and EmailMessage as they both derive off ServiceObject. Using Item.Bind with the appropriate property set defined should also work.
As an aside I figured this out looking at the code for EwsEditor which is mentioned here:
http://blogs.msdn.com/webdav_101/archive/2009/11/10/ews-has-more-happy-now-ews-managed-api-and-ewseditor.aspx
The usability of EwsEditor is fairly sucky, and the code takes some trawling to figure out, but at least it does show examples of exercising many of the APIs.
service.FindAppointments(WellKnownFolderName.Calendar, new CalendarView(start, end)).Where(s => DateTime.Now < s.Start);
service.LoadPropertiesForItems(appointments, PropertySet.FirstClassProperties);
It worked for me.