Jump to content

Archived

This topic is now archived and is closed to further replies.

roksieu

[CI] How to handle form with inputs as array

Recommended Posts

Hello,

 

I have a large form that can be built dynamically, user can add multiple fields and now I have problems with saving values to DB.

 

I'm using codeigniter.

 

This is my form

Capture.jpg

and this is part of my controller that handle those inputs:

 

$from  = array();
	    foreach ($this->input->post('from') as $froms)
	    {
		    $from[] = $froms;
	    }
	    $to = array();
	    foreach ($this->input->post('to') as $tos)
	    {
		    $to[] = $tos;
	    }

	    $step = array();
	    foreach ($this->input->post('step') as $steps)
	    {
		    $step[] = $steps;
	    }

$odvisnost = array();
foreach ($this->input->post('odvisnost') as $dependency)
{
$odvisnost[] = $dependency;
}

 

And I get error:

 

 

A PHP Error was encountered

 

Severity: Notice

Message: Array to string conversion

Filename: mysql/mysql_driver.php

Line Number: 552

 

and

A Database Error Occurred

 

Error Number: 1054

Unknown column 'Array' in 'field list'

INSERT INTO `gc_dioptry` (`produkt`, `from`, `to`, `step`, `dependancy`, `value`) VALUES ('1', '2', '3', Array, Array, Array)

Filename: C:\xampp\htdocs\leckacms\system\database\DB_driver.php

Line Number: 330

 

1st value is "productid"

As you can see it tries to insert 'array' instead of values that I enter, I entered 2,3,4,5 and 6.

 

My html form is correct with all inputs names as array[] for example:

 

<input type="text" name="steps[]">

Share this post


Link to post
Share on other sites

It's not very clear how you are planning to store the values in the database and I can't see exactly which form fields map to which database fields. If each dynamic line should be a separate row in the "gc_dioptry" table then you could try something like this:

 


// Collect desired post arrays
$from = $this->input->post('from');
$to = $this->input->post('to');
$step = $this->input->post('step');
// etc.

$rows = array();  # we'll store each row in this array

// Setup a counter for looping through post arrays
// If there are x items in one post array (e.g. $from) then the others *should* contain the same number
$row_count = count($from);

for ($i=0; $i < $row_count; $i++) { 
   $rows[] = array(
       'produkt' => '???',
       'from' => $from[$i],
       'to' => $to[$i],
       'step' => $step[$i],
       'dependancy' => '???',
       'value' => '???',
   );
}

$this->db->insert_batch('gc_dioptry', $rows);

 

You could add some validation like checking that your post values are actually arrays and also check whether array keys ($i in this example) exist before using them. This will prevent errors being thrown.

Share this post


Link to post
Share on other sites

Each line of values will be stored in separate row.

For example:

All values from "first option" will be saved to table "first_option"

All values from "second" will be saved to table "second_option"

etc.

 

With all the fields I will also save product_id (so that I know to which products it goes to).

Share this post


Link to post
Share on other sites

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.