I want to write a recursive function in joomla that get all the child level categories using a category id using joomla's jmodel's db object.Following is my code that I have written:
function getChildCategories($type){
$query = "SELECT id FROM #__cd_categories WHERE parent_id='$type'";
echo $query."<br/>";
$this->_db->setQuery($query);
$list = $this->_db->loadObjectList();
if ($this->_db->getErrorNum()) { echo $this->_db->stderr(); return false; }
foreach($list as $record){
$this->childCategories[]= $record->id;
echo $record->id."<br/>";
return $this->getChildCategories($record->id);
}
return true;
}
So now problem is that, in joomla we use $this->_db_setQuery method and $this->_db->loadObjectList method , so in recursive call the result set, I think it overwrite, I think because the object is same. So can any one tell the way that how to overcome this problem? If you can solve this by using loop even that would be also very helpful for me.
I also think that once values are assigned to $list variable then that over write shouldn't be problem.So seems strange.Please tell if some one can tell me the way to do it?
thanks in advance
I don't think the issue is with the database object getting overwritten. It has been a bit since I have been struggling with recursive functions but I think the issue is with assigning the $list variable.
Should you not be returning that variable instead of boolean true like this:
function getChildCategories($type) {
$query = "SELECT id FROM #__cd_categories WHERE parent_id='$type'";
$this->_db->setQuery($query);
$list = $this->_db->loadObjectList();
if ($this->_db->getErrorNum()) { echo $this->_db->stderr(); return false; }
if ($list) {
foreach($list as $record){
$list->childCategories = $this->getChildCategories($record->id);
}
return $list;
} else {
return;
}
}
Related
I am trying to write a wordpress filter that would change the post status to trash if it contains explicit words, but I can't manage to get it to work. Could you please help me?
This is what I got so far:
add_filter('wp_insert_post_data', 'delete_invalid_posts', '99');
function delete_invalid_posts($data) {
$false_titles = array("*****", "******");
if (in_array($data['post_title'], $false_titles) {
// If post data is invalid then
$data['post_status'] = 'trash';
}
return $data;
}
If you want to search the title for Explicit Words, you may use this code:
add_filter('wp_insert_post_data', 'delete_invalid_posts', 99);
function delete_invalid_posts($data) {
$false_titles = array("*****", "******");
$title_arr = explode(' ', $data['post_title']);
$found = array_intersect($false_titles, $title_arr);
if (!empty($found)) {
$data['post_status'] = 'trash';
}
return $data;
}
I've not tested the code, So try it and if you have any question don't hesitate to ask.
I might be wrong, but I think you are missing a closing parentheses here...?
Are you getting an error message?
if (in_array($data['post_title'], $false_titles) // <--- HERE should be a ")"
Like I said, I could be mistaken or there may be other issues...
I can use Crypt to encrypt/decrypt my data. I want to encrypt some information in my db (such as the name, email, phone number to name a few).
Assuming that I want EVERYTHING to be encrypted, I want to be able to do this in the background by itself, which I can perform by overwriting the create and save functions:
// For instance, the save() function could become
public function save(array $options = array())
{
foreach ($this->attributes as $key => $value)
{
if (isset($value)) $this->attributes[$key] = Crypt::encrypt($value);
}
return parent::save($options);
}
Now, I want the decryption to be performed the same way, so that when I say User::find($id), the returned $user is already decrypted. Also other functions such as firstOrFail() get() first() and all to work as well.
I also would like this functionality to be extended when I use relationships (so User::with('someOtherTable')->find($id) also work).
Would this be possible? If this is not possible, I am thinking of creating a helper function decyrpt()
function decrypt($array)
{
if (!is_array($array)) return Crypt::decrypt($array);
$result = [];
foreach($array as $key => $value) $result[$key] = decrypt($value);
return $result;
}
And pass all my results through this first, and then start using them, but it would be nicer if Laravel would provide this, or if there was a "Laravel Way" of doing this.
It doesn't really make sense to encrypt everything. For example, you never want to encrypt the primary key; that doesn't even make sense. Likewise you probably don't want to encrypt the date fields; you'll lose the ability to perform any sort of SQL query on them.
With that in mind, you can try something like this:
class BaseModel extends Eloquent {
protected $encrypt = [];
public function setAttribute($key, $value)
{
if (in_array($key, $this->encrypt))
{
$value = Crypt::encrypt($value);
}
return parent::setAttribute($key, $value);
}
public function getAttribute($key)
{
if (in_array($key, $this->encrypt))
{
return Crypt::decrypt($this->attributes[$key]);
}
return parent::getAttribute($key);
}
public function attributesToArray()
{
$attributes = parent::attributesToArray();
foreach ($attributes as $key => $value)
{
if (in_array($key, $this->encrypt))
{
$attributes[$key] = Crypt::decrypt($value);
}
}
return $attributes;
}
}
then have all you models extend this one, and set the $encrypt property to whatever columns you want encrypted for that particular model.
P.S. If you want to use Eloquent's accessor functionality, you'll have to play with this a bit more.
It's worth mentioning Elocrypt library for Laravel 4. It's a more elaborate solution that works the same way. If you're using Laravel 5 use this one instead: Elocrypt 5.
Why not work my function in wordpress?
My code
add_post_meta( $ids, 'price', $price, true );
$price_add = get_post_meta($id, 'price', true);
function myprice(){
if ($price_add != ' '){
echo $price_add." Euro";
}
else {
echo "None";
}
}
I try use if (isset($price_add)) but not work.
I want to show price introduced in or show text "None".
You are attempting to use a variable which is not "in scope". You might want to read the PHP manual page on variable scope.
A function is a reusable piece of code, with input and output, and in PHP variables are "scoped" (visible) to the function they are declared in. (The main exception is global variables, which are usually frowned on as they make code hard to read, reuse, and test; static variables and object members work a bit differently.)
In your case, you want a function which takes as input a price, and echoes that price if it is not an empty string (or, as you've written it, a single space); you might define that like this:
function myprice($price_to_display) {
if ($price_to_display != ' '){
echo $price_to_display." Euro";
}
else {
echo "None";
}
}
You then call that somewhere else, passing in the value you want to display, like this:
$price_add = get_post_meta($id, 'price', true);
myprice($price_add);
Note that I've named the variable in the function something different for clarity; you could call it $price_add, but that wouldn't make it connected to the other variable called $price_add in any special way.
[Edited to add...] In fact, you don't need to have a variable at all when you are calling the function - what you are providing is a value for the input parameter. So you could also write it like this:
myprice( get_post_meta($id, 'price', true) );
The way I'd like to write code:
$chain = Articles::model()->visible()->childOf($teleshow_id);
echo $chain->count( $criteria );
// 1st echo - will write the amount of visible articles,
// which are children of $teleshow_id
echo $chain->count( $criteria );
// this echo will write the amount of all articles
But I'd like to get identical results of echos.
Is there any solution to keep $chain persistent ( to work with not a pointer to Articles::model()->visible()->childOf($teleshow_id) )
You could try something like the following:
// in your Articles class
private $_chain;
public function getChain($teleshow_id = false)
{
if(!isset($this->_chain))
{
$chain = Articles::model()->visible()->childOf($teleshow_id);
}
return $this->_chain;
}
and then call it from your controller like this:
$model = new Articles();
$chain = $model->getChain($teleshow_id);
$model->chain->count();
or something similar. You may need to mess with making getChain static if you want to make your calls easier, but you should be able to get started with that.
This must be an easy one but I can't find documentation for it online.
I'm trying to use the l() function in Drupal to create a dynamic link. What's the syntax?
At the moment I have:
l('Destination',"path/$user->uid/category")
which points to:
path/%2Fcategory
first of all, if you're working within a function, you'll need to get access to the global user object.
Secondly, if the user is anonymous/not logged in, the $user->uid might not be set or be 0.
lastly to prevent errors, it is common to concatenate variables together with strings
global $user;
if ($user->uid)
{
l('Destination', 'path/'.$user->uid.'/category')
}
l() is correcting your URL to path/%2Fcategory because it's trying to make a workable link from the string path//category.
Your string is path//category because $user->uid has no value. It has no value because either you haven't pulled up a user object from global $user or user_load(), or your user is anonymous.
I would suggest putting checking the value of $user before calling l(), for example:
global $user; // or $user = user_load($foo);
if ($user) {
l('Destination', 'path/'.$user->uid.'/category');
} else {
l('Destination', 'path/you-are-not-logged-in');
}
Try concatenating the strings instead.
l('Destination',"path/".$user->uid."/category")
as for the documentation, here it is: http://api.drupal.org/api/function/l/4.7
l($text,
$path,
$attributes = array(),
$query = NULL,
$fragment = NULL,
$absolute = FALSE,
$html = FALSE)
The documentation for the l() function is located at:
http://api.drupal.org/api/function/l/6
Other stuff has been said yet by others :)