foreach ($courses as $user) {
$options[$user['uid']] = [
'coursecode' => $user['coursecode'],
'coursename' => $user['coursename'],
'credithours' => $user['credithours'],
'coursetype' => $user['coursetype'],
'building' => $user['building'],
'place' => $user['place'],
'day' => $user['day'],
'time' => $user['time'],
];
}
$form['table'] = [
'#type' => 'tableselect',
'#header' => $header,
'#options' => $options,
'#empty' => t('No Courses found'),
'#js_select' => false,
'#attributes' => ['checked' => 'checked'],
];
this code generates all courses I can register is there any way to check specific values as default, I had a problem with making a specific checkbox checked
so anyhelp ?
I'm using drupal 8
//Inside your foreach loop
foreach($courses as $user) {
$default_value[$user['uid']] = 1; // use 1 or 0 as appropriate
}
// now with your table select
$form['table']['#default_value'] = $default_value;
// default_value is not provided with each options, rather an array of default values is provided in the tableselect main array.
Hope this solves your problem.
I have an array with key and value pair. I'm building this array dynamically and below is the code.
$x[] = array('type_name' => $value->name,
'percentage'=> intval($percentage));
My intention is to get the maximum value and for that I do
max($x);
However it is returning the wrong value actually the lowest value. Following is my array. Any help would be awesome.
$x = array(
array(
'type_name' => 'type 1'
'percentage' => 10,
),
array(
'type_name' => 'type 2'
'percentage' => 15,
),
array(
'type_name' => 'type 3'
'percentage' => 45,
),
);
Thanks is advance.
From php max() documentation :
// Multiple arrays of the same length are compared from left to right
It means that if you want to compare "percentage" values first instead of "type_name" values, you'll have to change their order in the array.
So, you could build your array like this ("percentage" comes first) and it should work :
$x[] = array(
'percentage'=> intval($percentage),
'type_name' => $value->name
);
For example :
$x = array(
array(
'percentage' => 10,
'type_name' => 'type 1'
),
array(
'percentage' => 15,
'type_name' => 'type 2'
),
array(
'percentage' => 45,
'type_name' => 'type 3'
),
array(
'percentage' => 25,
'type_name' => 'type 4'
)
);
print_r(max($x));
Output :
Array
(
[percentage] => 45
[type_name] => type 3
)
Hope it helps.
You need to read how the max compares against different types of data. In your case, you are trying to compare against one of the array item i.e. percentage inside one of the item so the function max does not know to do this.
There is an example by Revo in the manual which shows you how to do this.
You are creating an array of arrays. max doesn’t know that your arrays should be compared by the 'percentage' key, so it can’t be used here.
Instead, find the maximum value yourself. For example, like this:
$maxPercentage = false;
foreach ($x as $item) {
if ($maxPercentage === false || $item['percentage'] > $maxPercentage) {
$maxPercentage = $item['percentage'];
}
}
Now, $maxPercentage will store maximum percentage. Of, if you want an item with maximum percentage, get it like this:
$maxPercentage = false;
$maxItem = false;
foreach ($x as $item) {
if ($maxPercentage === false || $item['percentage'] > $maxPercentage) {
$maxPercentage = $item['percentage'];
$maxItem = $item;
}
}
I have a model that has fields id_peg, nama_peg, and jabatan_peg. So here's what I wanna do:
Autosuggestion that shows the list ofid_peg as I type in the text field id_peg
When I select the suggested id_peg, the fields nama_peg and jabatan_peg are autocompleted based on that corresponding selected value (retrieved from database)
I've been trying to do the first one and I did it. But I'm stuck at the second one.
This is what I did:
view/melaporkan.php:
$this->widget('zii.widgets.jui.CJuiAutoComplete', array(
'name' => 'test1',
'source' => $this->createUrl('search'),
// additional javascript options for the autocomplete plugin
'options' => array(
'showAnim' => 'fold',
'select' => 'js:function(event, ui) {
$('#nama_peg').val(ui.item.nama_peg);
$('#jabatan_peg').val(ui.item.jabatan_peg);
}',
),
));
controllers/sitecontroller.php
public function actionSearch() {
$res = array(0 => array('id' => 1, 'value' => "id_peg"), 1 => array('id' => 2, 'value' => "jabatan_peg"), 2 => array('id' => 2, 'value' => "nama_peg"));
if (isset($_GET['term'])) {
$qtxt = "SELECT id_peg FROM pegawai WHERE id_peg LIKE :id_peg";
$command = Yii::app()->db->createCommand($qtxt);
$command->bindValue(":id_peg", '%' . $_GET['term'] . '%', PDO::PARAM_STR);
$res = $command->queryColumn();
}
echo CJSON::encode($res);
Yii::app()->end();
}
All it did was autosuggest for id_peg. When clicked some random id_peg, nama_peg and jabatan_peg were still empty.
What did I do wrong?
Actually the problem is controllers/sitecontroller.php page.
You are sending only id_peg as JSON format but trying to get as ui.item.jabatan_peg.
It is always better to send your value as
[{"id":"Caprimulgus europaeus","value":"European Nightjar"}] pattern
and get the value ui.item.value at your select function.
Imagine this situation:
$component = array(
'type' => 'chimney',
'material' => 'stone'
);
What i would like to do is to add a key/value pair to this array, if a certain condition is met.
$hasMetrics = true;
$component = array(
'type' => 'chimney',
'material' => 'stone',
'metrics' => ($hasMetrics ? array('width' => 60, 'height' => 2000) : false)
);
While this could be used, it will always cause a key called 'metrics' in my array.
Of course, if i don't want that, i could use array_merge() to merge a second array with the first (the second being either an empty array or the desired key/value pair, depending on the condition).
But what i am longing to find out is if there is any way to define this array like above, while taking care of $hasMetrics, without the use of any other means (such as array_merge()) but purely in the actual (first and only) definition of this array.
Like this: (non-applicable, demonstrative example)
$component = array(
'type' => 'chimney',
'material' => 'stone',
($hasMetrics ? array('metrics' => array(
'width' => 60,
'height' => 2000
)) : false)
);
(This, as i understand it, would generate two keys (type and material and then create one keyless value that is, itself, an array containing a key (metrics) and another array as value.)
Can anyone show me some proper approach? Perhaps there is some kind of PHP function available, with special properties (such as list() which is capable of cross-assignment).
EDIT
Perhaps some more clarification is needed, as many answers point out ways to go such as:
Using a followup assignment to a certain key
Filtering the generated array after defining it
While these are perfectly valid ways to extend the array, but i am explicitly looking for a way to do this in one go within the one array definition.
Not with the array defenition itself. I would add it to the array if necessary:
if($hasMetrics) {
$component['metrics'] = array('width' => 60, 'height' => 2000);
}
$hasMetrics = true;
$component = array(
'type' => 'chimney',
'material' => 'stone',
);
if($hasMetrics){
$component['metrics'] = array('width' => 60, 'height' => 2000);
}
Try
$component = array(
'type' => 'chimney',
'material' => 'stone',
'metrics' => $hasMetrics ? array('width' => 60, 'height' => 2000) : ''
);
And after that
$component = array_filter( $component ); // remove if it has '' value
OR
$component = array(
'type' => 'chimney',
'material' => 'stone',
);
if($hasMetrics) {
$component['metrics'] = array('width' => 60, 'height' => 2000);
}
I have a database table as follows:
This returns all column titles in the pic, but the one's that are most important are slug, and parent (not sure about id_button).
The array gets ordered automatically by id_button ASC, which really irks me. But, anyways, this is not important, as I need to order it completely different, or re-order it after the array is populated.
The array returns this, by order of id_button:
$new_menu_buttons = array(
0 => array(
'id_button' => 1,
'parent' => 'help',
'position' => 'child_of',
'slug' => 'testing',
),
1 => array(
'id_button' => 2,
'parent' => 'packages',
'position' => 'after',
'slug' => 'sub_test_1',
),
2 => array(
'id_button' => 3,
'parent' => 'google.com',
'position' => 'after',
'slug' => 'another_test',
),
3 => array(
'id_button' => 4,
'parent' => 'testing'
'position' => 'child_of',
'slug' => 'google.com',
)
);
I need to order it so that if a slug is found within any parent, than the slug that is in the parent needs to be loaded before the one that has it defined within the parent.
Its not important if it is directly before it. For example, you see testing is the first slug that gets returned, and yet the parent for this is the last slug (google.com). So as long as the slug row where the parent is defined gets ordered so that it is BEFORE the row that has the slug value in the parent column, everything is fine.
So in this situation, it can be reordered as any of these 3 ordered arrays below:
$new_menu_buttons = array(
0 => array(
'id_button' => 1,
'parent' => 'help',
'position' => 'child_of',
'slug' => 'testing',
),
1 => array(
'id_button' => 2,
'parent' => 'packages',
'position' => 'after',
'slug' => 'sub_test_1',
),
2 => array(
'id_button' => 4,
'parent' => 'testing',
'position' => 'child_of',
'slug' => 'google.com',
),
3 => array(
'id_button' => 3,
'parent' => 'google.com'
'position' => 'after',
'slug' => 'another_test',
)
);
OR this...
$new_menu_buttons = array(
0 => array(
'id_button' => 1,
'parent' => 'help',
'position' => 'child_of',
'slug' => 'testing',
),
1 => array(
'id_button' => 4,
'parent' => 'testing',
'position' => 'child_of',
'slug' => 'google.com',
),
2 => array(
'id_button' => 2,
'parent' => 'packages',
'position' => 'after',
'slug' => 'sub_test_1',
),
3 => array(
'id_button' => 3,
'parent' => 'google.com'
'position' => 'after',
'slug' => 'another_test',
)
);
OR even this...
$new_menu_buttons = array(
0 => array(
'id_button' => 1,
'parent' => 'help',
'position' => 'child_of',
'slug' => 'testing',
),
1 => array(
'id_button' => 4,
'parent' => 'testing',
'position' => 'child_of',
'slug' => 'google.com',
),
2 => array(
'id_button' => 3,
'parent' => 'google.com'
'position' => 'after',
'slug' => 'another_test',
),
3 => array(
'id_button' => 2,
'parent' => 'packages',
'position' => 'after',
'slug' => 'sub_test_1',
)
);
All 3 of these ordered arrays will work because the array with the slug that matches the parent is before the array with the matching parent, and since the slug value, sub_test_1 doesn't match any of the parent values this array order is unimportant, so that array can be located anywhere within the array.
How can I do this? I'm thinking of just looping through the array somehow and trying to determine if the slug is in any of the parents, and just do a reordering somehow...
In short, the slug needs to be ordered before the parent ONLY if there is a parent that matches a slug within the array. Otherwise, if no match is found, the order isn't important.
As Niko suggested, databases support powerful sorting functionality, so you normally can best solve this by telling the database in which order to return the data. If the data is queried with SQL, that's the ORDER BY clause. This is specified in the documentation of your database, assuming you're using MySQL 5.0: http://dev.mysql.com/doc/refman/5.0/en/sorting-rows.html
If you can not influence the order on the database level, you're in the need to sort the array in PHP. You actually have an array of arrays, in which the outer array is just a list having the id (primary key) of each row and the other fields as a fieldname -> value array as a value (inner array).
Your sort is *user-defined` - you specify the sort order. A common way is to have a sort function that compares two entries which each other. That sort function needs to decide which of those two is of a higher sort-order than the other (or both have the same weight). In you case one item is higher than the other if one is the child of the other.
That's the general principle. You define the sort function that decides (the so called callback function), and PHP takes care to feed it with the array data to sort with the usortDocs function.
A sub-problem you need to solve then is to decide whether or not a child exists in the whole array (an item with a slug having the same value as parent). As this all looks like it can be a bit more complex, it's wise to encapsulate this all into a class of it's own.
Example / Demo:
class menuButtons
{
/**
* #var array
*/
private $buttons;
public function __construct(array $buttons)
{
$this->buttons = $buttons;
}
public function sortChildsFirst()
{
$buttons = $this->buttons;
usort($buttons, array($this, 'sortCallback'));
return $buttons;
}
private function sortCallback($a, $b)
{
// an element is more than any other if it's parent
// value is any other slugs value
if ($this->slugExists($a['parent']))
return 1;
return -1;
}
private function slugExists($slug)
{
foreach($this->buttons as $button)
{
if ($button['slug'] === $slug)
return true;
}
return false;
}
}
$buttons = new menuButtons($new_menu_buttons);
$order = $buttons->sortChildsFirst();
Note: This code is exploiting the fact that your sort order is only roughly specified. You only wrote that you need to have children before parents, so if you take all children first, this will always be the case. It's not that each parent will directly follow the child.
Nevertheless, this skeleton class can work as a base to further improve the search functionality as it's fully encapsulated. You can even change the whole sort method, e.g. to completely write one of your own even w/o usort, like outlined below. The main code does not need to change as it's only making use of the sortChildsFirst method.
You can sort an array once populated using the usort() function.
http://php.net/manual/en/function.usort.php
Since your structure is tree-alike, the first thing that comes to mind is to build a tree out of it. It goes like this:
$tree = array();
foreach($array as $e) {
$p = $e['parent'];
$s = $e['slug'];
if(!isset($tree[$p]))
$tree[$p] = new stdclass;
if(!isset($tree[$s]))
$tree[$s] = new stdclass;
$tree[$s]->data = $e;
$tree[$p]->sub[] = $tree[$s];
}
This creates a set of objects, with the members data and sub = list of child objects.
Now we iterate the tree and for each "root" node, add it and its children to the sorted array:
$out = array();
foreach($tree as $node)
if(!isset($tree[$node->data['parent']]))
add($out, $node);
where add() is
function add(&$out, $node) {
if(isset($node->data))
$out[] = $node->data;
if(isset($node->sub))
foreach($node->sub as $n)
add($out, $n);
}
hope this helps.
Ok, first let me thank you all for your detailed explanations. They are very intuitive. However, I found another way, can you guys let me know if you spot anything wrong with this method here please?
Click here to see a Demo of this working!
$temp_buttons = array();
foreach($new_menu_buttons as $buttons)
$temp_buttons[$buttons['parent']] = $buttons['slug'];
dp_sortArray($new_menu_buttons, $temp_buttons, 'slug');
// The $new_menu_buttons array is now sorted correctly! Let's check it...
var_dump($new_menu_buttons);
function dp_sortArray(&$new_menu_buttons, $sortArray, $sort)
{
$new_array = array();
$temp = array();
foreach ($new_menu_buttons as $key => $menuitem)
{
if (isset($sortArray[$menuitem[$sort]]))
{
$new_array[] = $menuitem;
$temp[$menuitem['parent']] = $menuitem['slug'];
unset($new_menu_buttons[$key]);
}
}
$ordered = array();
if (!empty($new_array))
{
foreach ($new_array as $key => $menuitem)
{
if (isset($temp[$menuitem[$sort]]))
{
$ordered[] = $menuitem;
unset($new_array[$key]);
}
}
}
else
{
$new_menu_buttons = $new_menu_buttons;
return;
}
$new_menu_buttons = array_merge($ordered, $new_array, $new_menu_buttons);
}
Seems to work in all instances that I tested, but ofcourse, their could be a flaw in it somewhere. What do you all think of this?