validate_registration.php

<?php

// Now store all the posted information
$submit = (isset($_POST['submit'])) ? true : false;
$preview = (isset($_POST['preview'])) ? true : false;
// Make an array of all the names and defaults
$inputs = array(
	'name_of_school'		=> '',
	'first_time'			=> 0,
	'how_hear'				=> '',
	'how_hear_other'		=> '',
	'fac_ad_name'			=> '',
	'fac_ad_email'			=> '',
	'where_school'			=> '',
	'mailing_address'		=> '',
	'city'					=> '',
	'province_or_state' 	=> '',
	'country'				=> '',
	'postal_or_zip_code' 	=> '',
	'phone_number'			=> '',
	'fax_number'			=> '',
	'number_of_delegates'	=> 0,
	'del_choice_1' 			=> 0,
	'del_choice_2' 			=> 0,
	'del_choice_3' 			=> 0,
	'del_choice_4' 			=> 0,
	'del_choice_5' 			=> 0,
	'del_choice_6' 			=> 0,
	'del_choice_7' 			=> 0,
	'del_choice_8' 			=> 0,
	'del_choice_9' 			=> 0,
	'del_choice_10' 		=> 0,
	'com_choice_1' 			=> 0,
	'com_choice_2' 			=> 0,
	'com_choice_3' 			=> 0,
	'apply_ad_hoc'			=> 0, 
	//'ad_hoc_application_form' => '',
	'previous_experience'	=> '',
);

// Nice readable names for the ones we'll be printing out during errors
$nice_names = array(
	'name_of_school'		=> 'name of your school',
	'how_hear'				=> 'how did you hear about SSUNS',
	'how_hear_other'		=> 'how did you hear about SSUNS (other)',
	'fac_ad_name'			=> 'faculty advisor name',
	'fac_ad_email'			=> 'faculty advisor email',
	'where_school'			=> 'location of your school',
	'mailing_address'		=> 'mailing address',
	'city'					=> 'city',
	'province_or_state' 	=> 'province or state',
	'country'				=> 'country',
	'postal_or_zip_code' 	=> 'postal or zip code',
	'phone_number'			=> 'phone number',
	'fax_number'			=> 'fax number',
	//'ad_hoc_application_form' => 'ad-hoc application form',
	'previous_experience'	=> 'previous experience',
);

foreach ($inputs as $key => $value)
{
	// This is a built-in phpBB method, see the online documentation if you need to modify this
	// 0 casts it to an int, '' to a string, etc
	if ($value == 0)
	{
		$$key = request_var($key, $value);
	}
	else
	{
		// If it's a string just support other characters etc
		$$key = utf8_normalize_nfc(request_var($key, $value, true));
	}
}

// Now do the validation
$errors = '';
// Maybe make $errors an array and use push and join with line breaks at the end ... one day

// Of the inputs, only a few can be empty
foreach ($inputs as $key => $value)
{
	// Check the integers first
	if (is_int($$key))
	{
		// Only two can be 0 - the rest cannot be.
		if ($$key == 0 && $key != 'apply_ad_hoc' && $key != 'first_time' && $key != 'number_of_delegates')
		{
			// check if it's the delegation or committees that was omitted here
			$errors .= ($key[0] == 'c') ? 'You must choose all 3 committees.<br />' : 'You must choose all 10 delegations.<br />';
			// Might as well break it here
			break;
		}
		else if ($key == 'number_of_delegates' && ($$key > 40 || $$key < 1))
		{
			// Validate the number of delegates, too
			$errors .= 'Invalid number of delegates<br />';
		} 
	}
	else
	{
		// Should be a string
		// The only ones that are allowed to be empty are: how_hear_other (if how_hear != other), country (if where_school != other)
		if (empty($$key))
		{
			// Situations where there is no error:
			if (($key == 'how_hear_other' && ($how_hear != 'other' || $first_time == 0)) || ($key == 'country' && $where_schol != 'other'))
			{
				// Do nothing lol
			}
			else
			{
				// Do an associative array lookup to find the nice names
				$errors .= "You have left the <strong>" . $nice_names[$key] . "</strong> field empty.<br />";
			}
		}
	}
}

// A little more validation ... make sure that the countries and committees chosen are unique
// Use a sort of adjacency-like matrix for checking. Only need to check above the main diagonal
for ($i = 1; $i <= 10; $i++ )
{
	for ($j = $i + 1; $j < 10; $j++ )
	{
		$one_delegation = 'del_choice_' . $i;
		$other_delegation = 'del_choice_' . $j;
		if ($$one_delegation == $$other_delegation)
		{
			$errors .= 'Your choices for the country selection must be unique.<br />';
			break 2;
		}
	}
} 

// For the committees, there are only three to check (3x3 matrix - 3 above) so just do it by 'hand'
if ($com_choice_1 == $com_choice_2 || $com_choice_1 == $com_choice_3 || $com_choice_2 == $com_choice_3)
{
	$errors .= 'Your choices for the specialised agency committees must be unique.<br />';
}

// Now get the delegation choices ... select from a table I guess?
for ($i = 1; $i <= 10; $i++)
{
	// I am NOT doing 10 sql queries. 10 array lookups it is.
	include_once("delegations_array.php");
	$label = ($i == 1) ? "Choice 1 (top choice)" : "Choice $i";
	$field_name = 'del_choice_' . $i;
	$choice = $delegations[$$field_name];
	$template->assign_block_vars('del', array(
		'LABEL'		=> $label,
		'CHOICE'	=> $choice)
	);
}

// Now for the committees, if they exist
for ($i = 1; $i <= 3; $i++)
{
	$label = ($i == 1) ? "Choice 1 (top choice)" : "Choice $i";
	$field_name = 'com_choice_' . $i;
	include_once("committees_array.php");
	$choice = ($$field_name > 0) ? $committees[$$field_name] : 'None';
	$template->assign_block_vars('com', array(
		'LABEL'		=> $label,
		'CHOICE'	=> $choice)
	);
}

?>