can you help me on how to delete a session value on click of a button. I know how to clear a session key. I have a Session array with array values. I displayed each session array using for-each. I want to delete a specific key when i click a button:
#if(Session::get('selected_product'))
#foreach(Session::get('selected_product') as $key => $product )
<?php print_r(Session::get('selected_product')[$key]); ?>
<i class="fi-x small"></i>
<fieldset>
#foreach ($product as $value)
<p> {{ $value }}</p>
#endforeach
</fieldset>
#endforeach
#endif
On (.deleterow) button click pass the key, and by using that key you can remove particular value from session array.
$sessionVariable = Session::get('selected_product');
unset($sessionVariable[$key]);
Session::push('selected_product', $sessionVariable);
Related
I'm making a College Administration website where a professor can log in.
I have a dashboard, where my dynamically generated button should be placed: (right now it just has dummy buttons!)
Generated by this view file, which I will have to modify soon:
<div class="container d-flex flex-column align-items-center justify-content-center">
<h1>IA DASHBOARD</h1>
<br>
<div class="grid2">
SUBCODE 1</button>
SUBCODE 2</button>
SUBCODE 3</button>
</div>
Tables in the Database:
the table iamarks contains the data (student info, and marks) that is to be displayed after /subcode/{subcode} narrows it down to records of just the students that are in the class assigned to current logged-in professor.
classroom_mappers is a table used to map a professor to a classroom with a subject. It makes sure that one classroom only has one professor for a particular subject.
the routes currently in my web.php:
route::get('/ia', 'IAController#show')->middleware('auth');
Route::get('/subcode/{subcode}', 'IAController#showTable')->middleware('auth');
...and these are the methods inside my controller:
//shows buttons to the user:
public function show(){
$subcodes = DB::table('classroom_mappers')
->select('subcode')
->where([['PID','=', auth()->user()->PID]])
->get();
return view('ia',compact('subcodes'));
}
//when user clicks a button, subcode is to be generated and a table is to be shown:
//it works, I tried it by manually typing in subcode value in URL.
public function showTable($subcode){
$sem = DB::table('classroom_mappers')
->where([['PID','=', auth()->user()->PID],
['subcode','=',$subcode]])
->pluck('semester');
$division = DB::table('classroom_mappers')
->where([['PID','=', auth()->user()->PID],
['semester','=',$sem],
['subcode','=',$subcode]])
->pluck('division');
$data = DB::table('iamarks')
->where([['semester','=',$sem],
['division','=',$division],
['subcode','=',$subcode]])
->get();
return view('subcode',compact('data'));
}
My Problem:
To be able to generate the {subcode} in the URL dynamically, I want to create buttons in the dashboard using the data $subcodes. The controller hands over the $subcodes (an array of subject codes which belong to logged in professor) which are to be made into buttons from the show() method.
The buttons should have the name {subcode} and when clicked, should append the same subject code in the URL as {subcode}.
How do I make use of $subcodes and make the buttons dynamically?
How do I make sure the buttons made for one user are not visible to another user?
I managed to find the solution, thanks to Air Petr.
Apparently, you can't nest blade syntax like {{some_stuff {{ more_stuff }} }} and it generates a wrong php code. I modified the solution by Air Petr to:
<div class="grid2">
#foreach ($subcodes as $subcode)
<a href="<?php echo e(url('/subcode/'.$subcode->subcode));?>">
<button class="btn btn-outline-primary btn-custom-outline-primary btn-custom">
<?php
echo e($subcode->subcode);
?>
</button>
</a>
#endforeach
</div>
It generates the buttons perfectly. The buttons for one user are not visible to another, since I'm using PID constraint in a query (['PID','=', auth()->user()->PID]).
Pass the passcodes array to view:
$subcodes = []; // Array retrieved from DB
return view('subcode', compact('subcodes'));
And in subcode.blade.php, loop through each subcode:
<div class="grid2">
#foreach($subcodes as $subcode)
<a href="{{ url('/subcode/' . $subcode->subcode) }}">
<button class="btn btn-outline-primary btn-custom-outline-primary btn-custom">SUBCODE {{ $subcode->subcode }}</button>
</a>
#endforeach
</div>
You can loop your codes to create buttons. Something like this (it's for "blade" template engine):
<div class="grid2">
#foreach ($subcodes as $subcode)
{{ $subcode->subcode }}</button>
#endforeach
</div>
Since you're using PID constrain in a query (['PID','=', auth()->user()->PID]), you'll get buttons for that specific PID. So there's no problem.
I want to show selected value from database into dropdown list on page load.
My controller index function is :
public function index()
{
$country_data =DB::table('country')->select('country_id','country_name')->get();
$profile_data= DB::table('profiles')->select('*')->where('id',$user_id)->first();
return view('profile_update',compact('profile_data','country_data'));
}
Column name in database for height is :Height
My dropdown in profile_update.blade.php is
<select class="select4" name="country" id="country">
<option value="">Please Select</option>
#foreach($country_data as $country)
<option value="{{$country->country_id}}" {{$country_data->country == $country->country_id ? 'selected' : ''}}>{{$country->country_name}}</option>
#endforeach</select>
This is a example of how I do this:
<select class="js-states browser-default select2" name="shopping_id" required id="shopping_id">
<option value="option_select" disabled selected>Shoppings</option>
#foreach($shoppings as $shopping)
<option value="{{ $shopping->id }}" {{$company->shopping_id == $shopping->id ? 'selected' : ''}}>{{ $shopping->fantasyname}}</option>
#endforeach
</select>
In order to understand it fully you will need basics of laravel (MVC),
Let suppose, you have controller. In my case I made a separate table for drop down values.
My Approach --- Separate table for values of drop down, you can try different approach but my explanation was mainly focused on concept.
Note: PersonInfo is model, sampleType is model of my drop down values and don't forget to make a route for the controller.
ExampleController{
public funtion getValues($id){
/*
I am fetching information of a single row from the database by id and
then passing it to the view. The $id to the function came from the
request by your view/form.
I also fetched the values of drop down from the separate table
of database and passed it to the exampleView.
*/
$selectedValue=PersonInfo::findOrFail($id);
$sampleType=SampletypePicker::all(); //model for fetching all values of drop down
return view('exampleView',compact('selectedValue','sampleType));
}
}
So, in the above controller I fetched all values and passed it to the ExampleView. Now in your View file you have to work likewise.
exampleView.blade.php add the below code
<?php $options=$selectedValue->sample_type ?> //note take the value from the database which stored for the individual record and match it with the selected one.
<select class="form-control" name="test">
<option>Select Test Type</option>
#foreach ($sampleType as $value)
<option value="{{ $value->sample_type }}" {{ ( $value->sample_type == $options) ? 'selected' : '' }}>
{{ $value->sample_type }}
</option>
#endforeach
</select>
It is one of the best approach when you want to add dynamic values to the drop down. I mean if you want to add more values to the select tag options then this is the best approach.
Another Approach - take the idea
<?php $months = array("Jan", "Feb", "Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"); ?>
<?php $options=$patient_data->month ?>
#if($patient_data->month)
<select id="expiry_month" name="month" class="form-control-sm">
#foreach($months as $month)
<option value="{{$month}}" {{($month==$options)? 'selected':'' }}>{{$month}}</option>
#endforeach
</select>
#endif
<span class="select-icon"><i class="zmdi zmdi-chevron-down"></i></span>
</div>
OUTPUT of ABOVE CODE
#Sarita Sharma show the error(s). Maybe then anyone help you to resolve this problem. Show data in colections in controler - use dd e.g.
dd($country_data);
dd($profile_data);
Do you want to display the country in the view with the appropriate Height value from profile_data?
Ps. How to put the code, please use the formatting code - put the code in `` and use camelCase in value name (maintaining good PSR-1 practice) - it is easier to read code.
Well, simply if anyone still looking for this, here is the simple way to select items for dropdown from database to blade view
$users = Users::pluck('name', 'id');
$selectedID = 2;
return view('users.edit', compact('id', 'users'));
add this in the controller function before rendering the view
and in the blade view, simply use this variable as foreach loop as
<select name="user_id" class="form-control" id="exampleFormControlSelect1">
#foreach ($users as $key => $value)
<option value="{{ $key }}" {{ ($key == $selectedID) ? 'selected' : '' }}>
{{ $value }}
</option>
#endforeach
</select>
if you don't want to select all users from DB, you can use where condition before pluck condition as
$users = Users::where('status', 1)->pluck('name', 'id');
works with Laravel 8 and Laravel6
Create page
<div class="form-group">
<label><b>STATUS</b></label>
{!! Form::select('status', ['Draft','Published']) !!}
</div>
Index page
#foreach($sliders as $slider)
<tr>
<td>{!! $slider->id !!}</a></td>
<td>{!! $slider->status !!}</td>
#endforeach
Controller
public function store(Slider $slider,CreateSliderRequest $request)
{
// $slider=$slider->lists('name','id');
$slider = $slider->create($request->all());
Session::flash('message', 'The photo was successfully added!.');
Session::flash('flash_type', 'alert-success');
return redirect('sliders');
}
At index page, the data is shown in text dropdown, after inserting it navigate to index page, and in index page it shows status as 0 instead of showing Draft or Published.
Data are stored as id and id are displayed, i want to display text instead of id..
anyone there for help?
You need to decide how to structure your status options. If your array is not an assoc array, the option values will be the indices 0,1,... as in:
<select name="status">
<option value="0">Draft</option>
<option value="1">Published</option>
</select>
In your case, I assume you want to store 'Draft' or 'Published, so you should do this:
{!! Form::select('status', ['Draft' => 'Draft', 'Published' => 'Published']) !!}
so that the HTML generated would be
<select name="status">
<option value="Draft">Draft</option>
<option value="Published">Published</option>
</select>
I check radio button with value from database, it works, but it has rendered "1" just before that checked radio button. If I remove if statement then it does't show.
<?php $formUserType = UserType::all(); ?>
#foreach($formUserType as $valUT)
{{ $varSetRadio = false }}
#if($user->profile->dic_user_type_id == $valUT->id)
{{ $varSetRadio = true }}
#endif
{!! Form::radio('profile[dic_user_type_id]', $valUT->id, $varSetRadio) !!} {{ $valUT->name }}
<br />
#endforeach
{{ expr }} translates to <?php echo e(expr) ?>.
The output of an assignment is the rightmost value in php, so ($var = 1) is equal to 1 (Also true is equal to 1 because PHP is truthy)
Do the following:
#foreach($formUserType as $value)
{!! Form::radio('profile[dic_user_type_id]', $value->id, $user->profile->dic_user_type_id === $value->id) !!}
{{ $value->name }}
<br />
#endforeach
In addition, you shouldn't be comparing anything but simple logic in a view.
Try adding the comparison for dic_user_type to the User model itself, and pass your data in instead of fetching outside of a controller/model.
I have a form on my website, which has required fields, and non required fields. The user fills in there details and submits the form. This is then emailed to the owner, and the data is then presented in a table.
However is it possible to show only the data that has been filled in and then remove the fields where no data was entered.
So far I have:
Blade Template:
div class="col-md-6">
<div class="row">
<div class="col-md-6">
<p><b>First Names</b></p>
</div>
<div class="col-md-6">
<p>{{ $first_names }}</p>
</div>
</div>
Which is then sent and is outputted as a table below:
<?php
if (!empty($titles)) {?>
<td class="tg-031e">Title:</td>
<td class="tg-031e">{{ $titles }}</td>
<?php }
?>
But I am assuming an else or else if statement would be required. So how would I have it so that only the fields that where filled in where shown in the table please.
Thanks
If you want to return nothing when there is no title the code below shoud make it work.
#if (isset($titles))
<td class="tg-031e">Title:</td>
<td class="tg-031e">{{ $titles }}</td>
#endif
Let me know if this worls :)
ps: #if(isset($titles)) does not work try #if($titles == NULL)
You can also try something like this:
http://laravel.com/docs/4.2/templates#other-blade-control-structures
Sometimes you may wish to echo a variable, but you aren't sure if the variable has been set. Basically, you want to do this:
{{{ isset($name) ? $name : 'Default' }}}
However, instead of writing a ternary statement, Blade allows you to use the following convenient short-cut:
{{{ $name or 'Default' }}}