Jump to content

[CI] How to handle form with inputs as array


roksieu

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[]">

Link to comment
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.

Link to comment
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).

Link to comment
Share on other sites

This thread is more than a year old. Please don't revive it unless you have something important to add.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • 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.