I am creating a mobile guest list for a party that I'm having in a few months. All of the invites that I am handing out will have a custom QR Code on them, embedding their first and last name. When they get to the party, they check in with me, I scan their QR Code and throw them into a database.
I have the core elements working where the custom QR Code with the embedded query strings for first and last names pre-populate a set of text inputs for the first and last names, you fill in some other information, click submit and BANG, you're in the database.
I would like to add some extra functionality that checks the database that someone has already checked in, to prevent party crashers.
What code would I need to write to allow, onWindowLoad, the first and last name query strings to be checked against the database to see if entries containing those already exist?
Thanks in advance
Ajax call with a select. Make it easy on yourself, use jQuery. Here are some examples:
Ajax Examples with jQuery
Related
This is the situation, I've got a big array ( 280 items ) which creates a really big form by going trough loops.
I want the user to be able to disable certain items, so they can 'pre make' their form ( and skip the not used ones ), You are probably going to say i can just remove what's not needed. But they need different items from the array every time they use it.
So how would i make a page where they can just use checkbox to 'change' the form. ( if possible at all.)
Thanks,
Mike
edit:
Did not think of sharing code, here:
The array : http://pastebin.com/EnwHsqtK
the form : http://pastebin.com/y2XSFBG4
the page which makes a .txt file from the given answers. http://pastebin.com/UaUcsj2z ( not sure if anyone would need this. )
Might be a bit messy. I'm new in PHP, and only programming for a year. Also dont mind the language please.
If you want to permanently record form preferences/settings for each user, you'd want to create an additional table or column(s) in your database for this, give the users additional checkboxes on the form to indicate their preferences, receive this input and store it in the database, and of course finally disable certain fields based on their settings.
But if you just want to give the users a temporary way to disable certain fields (with no preferences saved permanently), you would use JavaScript in your output. You would add more form controls (checkboxes or buttons or whatever) to the HTML and then add JavaScript code snippets into that HTML to disable form elements when the user clicked on the controls. This kind of making changes when users click is called "triggers that fire based on events". The most commonly-used event is called "OnClick()" and the JavaScript code for it will execute when a user clicks on something.
Many folks who use JavaScript also find it helpful to use the functions in the jQuery library instead of raw JavaScript. To do this, you just add one line of HTML to the top of your page to include the JavaScript libraries from a publicly-hosted server, then you can use jQuery commands in your page.
The only thing to remember when you first start using JavaScript/jQuery is that it only runs on the client browser - its code cannot talk directly to the server, the database, or many things you can access in PHP. JavaScript/jQuery is specifically used for making your HTML pages more interactive. Plain HTML doesn't have much razzle-dazzle. JavaScript allows users to do things like enable and disable form fields on-the-fly.
I have a tournament with multiple divisions and multiple forms for which I use gravity forms.
There are times when someone requests to be changed to a different division. However, I am unable to move the competitor from one division to another in gravity forms, as the divisions are each using a different form ID (and they have still not developed a method for helping with this).
How would I go about moving a SINGLE ENTRY from one gravity form to another forms entry list please.
We have many teams at the tournament, so mass export and import is not what i am looking to achieve. Its about being able to move a single entry from one list of entries in one form to another forms list of entries?
ANY help would be greatly appreciated. Even a simple "use this method" in general terms will help me greatly. Would I use some form of JQuery fiddle, a php script, an sql script or what please as Import Entries is not available currently in GF
Regards
You can not do that, but instead maybe you shold design your form to include all types of submissions logic. I mean you can put a drop-down field at the beginning of your form. Then you can use https://gravityview.co/ to edit your single entry field.
I have a workaround for this which i am using in one of my current projects for http://projects.dzign-r.com.au and that is,
1) export both of the the forms (i.e the one from which you need the field to move and the other to which you need this field to be moved to) and it exports these as json files
2) search for the field ID that you need to be moved to another form, cut its json code from the json file and paste it in the other form's json file where you need it to be moved to
3) then import the form back. and test it to make sure it works as you want it, (as a caution you may change the field ID after you paste it in new form to be something which is not used in this form already).
4) once u see everything is fine u may just delete the old form?
I have an application in which I display a form so a user can search for client records based on last name. After entering search parameters, the record or records (there could be multiple clients with the same last name) are displayed. I then want the user to be able to select a client record, possibly with a radio button, and hit one of two buttons: Display details, or Create Reservation. The Display Details button should cause a new display with details of the selected record. The Create Reservation button should cause a new form, with its own handling, to be displayed.
Now, I know I can set things up according to this login
<?php
if (display button was pressed)
{
php code to retrieve more data and display details
}
else if (create reservation button was pressed)
{
php code to generate and display the reservation form, with appropriate handling
}
?>
display the original form with the search results
The problem is, I end up with really ugly, hard to read code because the php code to generate and display the reservation form is lengthy, and needs its own validation, database interaction, and form handling. The code, to my Java-oriented eye, looks ugly and non-modular. Plus, the code for handling the reservation form is icky, with lots of flag setting to determine if we are in form entry mode or form handling mode. I would like a much cleaner way to do this. So my question is, what is the best practice for handling the situation where there are multiple buttons and the action associated with each button is complex?
I could call a function, obviously, but I still end up with the ugly flags determining which state the script is in (are we displaying the reservation form or handling it?). I could create another php file and include it, but the ugliness persists. Or, I could use header, and pass the client record id in a session variable to the new php script. But that would mean a second, unnecessary retrieve from the database to get the client information again.
All the code examples I see on the web show very simple processing after a form button is pressed. What is the best way to do complex processing and displaying a second form based on a button press?
Have you considered using a framework like Laravel for your site. It would seem to me that you must be doing this "manually". With the complexities you described, having a system with routes and "build-in" functionality (like Eloquent ORM) might serve to simplify things for you.
I would go for using ajax and a rich jQuery plugin (or some other framework) to do what you want.
Basically you will handle lists and the functionality that you mentioned with the php reading data and jQuery scripts to dysplay it. And the information that you have to show would be through ajax. Or when you want to edit.
Here is a cleaner example of what you need:
http://jqueryui.com/dialog/#modal-form
I have searched over SO for quite awhile so I apologize if a similar question is asked and answered but I don't believe there is.
I am using a PHP validation script and jQuery Validate to process all of the forms on my site. With known fields, no issues. However, there are pages which a user can enter additional person(s) information.
A user is asked to enter his family member's names in a form. The user can submit the form or choose to add additional family members to the form. I have not quite figured out how to properly cycle through all the fields and display unique messages based on the users input in jQuery but know I can do so with metadata and the validation plugin.
My issue lies with PHP. I can take each array and run though foreach loops, however, if an error is found in ANY field, an error is generated and the form is displayed again with all fields' previously entered data. I am unable to determine how to point each field's original data to it given the fields are built dynamically when errors appear.
The SIMPLEST METHOD I can come up with for demonstration is this:
A user must enter the percentages of pie he wants his friends to eat.
He must give out 100% of his pie. The user can choose to dynamically
add friends to his pie eating extravaganza but each person must
receive atleast 1% of the pie and they must all together eat 100%.
Sample code
I have created a sample script here which shows the form setup but obviously there is no PHP backend to test. You will need to use your imagination the backend works (I have added into the comments in the html). The same principle would apply with PHP SESSION variable since this data would need to be passed from page to page (if a user revisits this page, the amounts entered for each piece of pie should display). Also, I think it goes without saying but this data MUST BE validated server-side.
Will you not be reloading the page in the event of a PHP error? In which case you know the index of the error in the foreach loop, saved off to some variable - most likely an array to handle multiple errors. When you print the options back out and you are looping through the submitted array again can you not add an additional css class to the text box when you reach a count that is in your error array.
I have a website and I want to make it easier for someone to change certain information being shown without them having to edit the HTML/PHP and using FTP.
At the moment I have this information in a php file which is included in the MYSQL query.
It would be a lot easier if this was done using a form, say a text field where a person can type the table name and it updates on the main page and starts displaying that table instead.
Sorry if I haven't explained this well. :(
I have a good news for you.
Every php/mysql-driven site in the world is made this exact way - to edit site contents using HTML form.
Even first PHP version name was PHP/FI, stands for Form Interpreter.
Even better, a site user doesn't have to deal with mysql - it's all being done in PHP. No need to type table names into form field - all table names already written in PHP code.
Usual PHP application being connected to just one mysql database - so, no need to choose.
As for the tables, it's being done this way: a user selects some human-readable matter, like "Latest news" and being redirected to the PHP script called, say, news.php. this script runs a query for the news table in the database and outputs some HTML formatted news highlights!
Even more, you don't even need to program! There are plenty of ready-made programs, such as Wordpress
store what you want to be editable in a mysql text field.
remove tags you dont want him to see
in the form echo the editable information in a textarea
have him edit
add tags
update the mysql
note depending on the users knowledge depends on how many tags you would like to remove/add. the less per a field the easier.
on more complicated things i like to have the person log in. if he has permission then all the editable fields have an edit button. if he clicks it it goes to a page with a form that he can use to edit that 1 field