Insert not working correctly in codeigniter - php

Question

I am trying to insert data into the database and my code does add a new row but all the values are null. I don't know what's causing it. The view is inside a modal in html. Here's my code: Thanks for your help
Controller:
public function addItem(){
$save = array(
'inventoryID' => $this->input->post('rfid'),
'masterCode' => $this->input->post('masterCode'),
'itemName' => $this->input->post('itemName'),
'colorName' => $this->input->post('colorName'),
'location' => $this->input->post('location'),
'itemCategory' => $this->input->post('itemCategory'),
'materialDescription' => $this->input->post('materialDescription'),
'supplier' => $this->input->post('supplier'),
'itemDescription' => $this->input->post('itemDescription'),
'comments' => $this->input->post('comments'),
'itemCode' => $this->input->post('itemCode'),
'colorCode' => $this->input->post('colorCode')
);
$this->searchModel->form_insert($save);
//load the header
$this->load->view('base.php',$save);
//load the page
redirect('Search');
//load the footer
$this->load->view('footer.php',$save);
}
Model:
function form_insert($data){
// Inserting in Table(inventory) of Database(library)
$this->load->database();
$this->db->insert('inventory', $data);
$inventoryID = $this->db->insert_id();
}
View:
<div id="addItem" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<form method ="post" action= "<?php echo site_url("Search/addItem"); ?>">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Add an Item</h4>
</div>
<div class="modal-body">
<form role="form">
<table>
<tr>
<td><input type="text" name="rfid" placeholder="RFID" required/></td>
<td><input type="text" name="itemCode" placeholder="Item Code" required/></td>
<td><input type="text" name="masterCode" placeholder="Master Code" /></td>
</tr>
<tr>
<td><input type="text" name="itemName" placeholder="Item Name" required/></td>
<td><input type="text" name="colorCode" placeholder="Color Code" /></td>
<td><input type="text" name="colorName" placeholder="Color Name" /></td>
</tr>
<tr>
<td><input type="text" name="location" placeholder="Location" required/></td>
<td><input type="text" name="makelocation" placeholder="Location Made" required/></td>
<td><input type="text" name="itemCategory" placeholder="Item Category" /></td>
</tr>
<tr>
<td><input type="text" name="materialDescription" placeholder="Material Description" /></td>
<td><input type="text" name="supplier" placeholder="Supplier/Vendor" required/></td>
<td><input type="text" name="checkoutAllowed" placeholder="Checkout Allowed" /></td>
</tr>
</table>
<div class="row personal-info">
<div class="col-sm-4">
<div class="form-group">
<textarea name="itemDescription" placeholder="Insert information regarding the weather this item is suitable for and where it is used"></textarea>
<textarea name="Comments" placeholder="Additional Coments on the Item"></textarea>
</div>
</div>
</div>
</form>
</div>
<div class="modal-footer" style="text-align:center;">
<input class="btn btn-primary" name="addItem" value="Add Item">
</div>
</form>
</div>
</div>
</div>

Answer 1

The problem is that you do not actually "submit" the form data. Your button links to the correct controller/method but does not send any data to the controller when you use a link, i.e. <a href=.... You need a submit button.
The change is quite simple. Change the code for the button as follows.
<div class="modal-footer" style="text-align:center;">
<input type="submit" class="btn btn-primary" name="addItem" value="Add Item">
</div>
There is another issue. You have two <form> tags.
Remove the line
<form method ="post" action="<?php echo site_url("Search/addItem"); ?>">
And change the line
<form role="form">
to
<form method="post" action="<?php echo site_url("Search/addItem"); ?>" role="form">
You also need to remove the extra form close tag two lines above the button's code. Nested <form>s are not allowed. And you need to move the closing tag for <div class="modal-content"> So to make it more clear here is what your view should finally look like.
<div id="addItem" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Add an Item</h4>
</div>
<div class="modal-body">
<form method ="post" action= "<?php echo site_url("Search/addItem"); ?>" role="form">
<table>
<tr>
<td><input type="text" name="rfid" placeholder="RFID" required/></td>
<td><input type="text" name="itemCode" placeholder="Item Code" required/></td>
<td><input type="text" name="masterCode" placeholder="Master Code" /></td>
</tr>
<tr>
<td><input type="text" name="itemName" placeholder="Item Name" required/></td>
<td><input type="text" name="colorCode" placeholder="Color Code" /></td>
<td><input type="text" name="colorName" placeholder="Color Name" /></td>
</tr>
<tr>
<td><input type="text" name="location" placeholder="Location" required/></td>
<td><input type="text" name="makelocation" placeholder="Location Made" required/></td>
<td><input type="text" name="itemCategory" placeholder="Item Category" /></td>
</tr>
<tr>
<td><input type="text" name="materialDescription" placeholder="Material Description" /></td>
<td><input type="text" name="supplier" placeholder="Supplier/Vendor" required/></td>
<td><input type="text" name="checkoutAllowed" placeholder="Checkout Allowed" /></td>
</tr>
</table>
<div class="row personal-info">
<div class="col-sm-4">
<div class="form-group">
<textarea name="itemDescription" placeholder="Insert information regarding the weather this item is suitable for and where it is used"></textarea>
<textarea name="Comments" placeholder="Additional Coments on the Item"></textarea>
</div>
</div>
</div>
<div class="modal-footer" style="text-align:center;">
<input type="submit" class="btn btn-primary" name="addItem" value="Add Item">
</div>
</form>
</div>
</div>
</div>
</div>