I am trying to get some content of a particular revision.I am not sure on how to build a revision object using revision id.
$prevId = ApprovedRevs::getPublishedRevID($titleObject);
$revision = ?? how to build this object using above $prevId ??
$content = $revision->getContent(Revision::RAW);
$content = ContentHandler::getContentText($content);
return $content;
The simplest way is
$revision = \MediaWiki\MediaWikiServices::getInstance()->getRevisionLookup()->getRevisionById( $prevId );
if ( !$revision ) { /* panic */ }
although the more conventional way of structuring the code would be using dependency injection.
Related
A question of mine which I had to ask a long time ago.. I am curious if these wordpress functions like get_post_meta makes a sql query to the database or does it is loaded in WP_Query global variable when page is loaded? Thank you
get_post_meta() is a wrapper for get_metadata() and get_metadata() uses the global WP_Object_Cache object.
The relevant code is:
function get_metadata( $meta_type, $object_id, $meta_key = '', $single = false ) {
...
$meta_cache = wp_cache_get( $object_id, $meta_type . '_meta' );
if ( ! $meta_cache ) {
$meta_cache = update_meta_cache( $meta_type, array( $object_id ) );
if ( isset( $meta_cache[ $object_id ] ) ) {
$meta_cache = $meta_cache[ $object_id ];
} else {
$meta_cache = null;
}
}
...
}
where wp_cache_get() is checking the global WP_Object_Cache object $wp_object_cache and update_meta_cache() is updating the global WP_Object_Cache object $wp_object_cache if the data is not in the cache. Of course this update requires a SQL query.
Incidentally, the global WP_Object_Cache object $wp_object_cache is used for much more than post meta data - it is a generic cache and WordPress and plugins uses it for caching values that are expensive to recompute.
Using DBIx::Class, I found a solution to my issue, thankfully. But I'm sure there has to be a nicer way.
my $record = $schema->resultset("food")->create({name=>"bacon"});
How would I turn this record into a simple hashref instead of having to make this call right after.
my record = $schema->resultset("food")->search({name=>"bacon"})->hashref_array();
Ideally I want to be able to write a code snippet as simple as
{record=> $record}
instead of
{record => {name => $record->name, $record->food_id, ...}}
This would drive me insane with a table that has alot more columns.
I assume you're talking about DBIx::Class?
my $record = $schema->resultset("food")->create({name=>"bacon"});
my %record_columns = $record->get_columns;
# or, to get a HashRef directly
my $cols = { $record->get_columns };
# or, as you've asked for
my $foo = { record => { $record->get_columns } };
What you're looking for is included in DBIx::Class as DBIx::Class::ResultClass::HashRefInflator.
Laravel 5's built-in solution
In Laravel 5+, we can use \DB::getQueryLog() to retrieve all executed queries. Since, query logging is an extensive operation and cause performance issues so it's disabled by default in L5 and only recommend for development environments only. We can enable the query logging by using the method \DB::enableQueryLog(), as mentioned in [Laravel's documentation][1].
Problem in built-in solution
The DB::getQueryLog() function is great but sometimes we wish that it would be great if we get dump in flat SQL format, so we can copy/past it in our favorite MySQL application like phpMyAdmin or Sqlyog to execute it and debug or optimize it.
So, I need a helper function that helps me to produce dump with following additional info:
On which file and line number the dump has called.
Remove back-ticks from the query.
Flat query, so don't need to update binding parameters manually and I can copy/past SQL in phpMyAdmin etc to debug/optimize the query.
Custom Solution
Step 1: Enable Query Logging
Copy/past following block of code on top of route file:
# File: app/Http/routes.php
if (\App::environment( 'local' )) {
\DB::enableQueryLog();
}
Step 2: Add helper function
if (!function_exists( 'dump_query' )) {
function dump_query( $last_query_only=true, $remove_back_ticks=true ) {
// location and line
$caller = debug_backtrace( DEBUG_BACKTRACE_IGNORE_ARGS, 1 );
$info = count( $caller ) ? sprintf( "%s (%d)", $caller[0]['file'], $caller[0]['line'] ) : "*** Unable to parse location info. ***";
// log of executed queries
$logs = DB::getQueryLog();
if ( empty($logs) || !is_array($logs) ) {
$logs = "No SQL query found. *** Make sure you have enabled DB::enableQueryLog() ***";
} else {
$logs = $last_query_only ? array_pop($logs) : $logs;
}
// flatten bindings
if (isset( $logs['query'] ) ) {
$logs['query'] = $remove_back_ticks ? preg_replace( "/`/", "", $logs['query'] ) : $logs['query'];
// updating bindings
$bindings = $logs['bindings'];
if ( !empty($bindings) ) {
$logs['query'] = preg_replace_callback('/\?/', function ( $match ) use (&$bindings) {
return "'". array_shift($bindings) . "'";
}, $logs['query']);
}
}
else foreach($logs as &$log) {
$log['query'] = $remove_back_ticks ? preg_replace( "/`/", "", $log['query'] ) : $log['query'];
// updating bindings
$bindings = $log['bindings'];
if (!empty( $bindings )) {
$log['query'] = preg_replace_callback(
'/\?/', function ( $match ) use ( &$bindings ) {
return "'" . array_shift( $bindings ) . "'";
}, $log['query']
);
}
}
// output
$output = ["*FILE*" => $info,
'*SQL*' => $logs
];
dump( $output );
}
}
How to use?
Take dump of last executed query, use just after the query execution:
dump_query();
Take dump of all executed queries use:
dump_query( false );
On which file and line number the dump has
called.
I don't understand why you need this because you always know where you called the dump function but never mind you have your solution for that.
Remove back-ticks from the query.
You don't need to remove back-ticks as the query will work in MySQL along with them also.
Flat query, so don't need to update binding parameters manually and I can copy/past SQL in phpMyAdmin etc to debug/optimize the query.
You can use vsprintf for binding parameters as:
$queries = DB::getQueryLog();
foreach ($queries as $key => $query) {
$queries[$key]['query'] = vsprintf(str_replace('?', '\'%s\'', $query['query']), $query['bindings']);
}
return $queries;
And I would suggest you to checkout this github repo squareboat/sql-doctor
I was looking for simple solution and the one below worked for me.
DB::enableQueryLog();
User::find(1); //Any Eloquent query
// and then you can get query log
dd(DB::getQueryLog());
Reference Links:
How to Get the Query Executed in Laravel 5? DB::getQueryLog() Returning Empty Array
https://www.codegrepper.com/code-examples/php/dump+sql+query+laravel
Add this code in the top of your routes file.
Laravel 5.2 routes.php
Laravel 5.3+ web.php
<?php
// Display all SQL executed in Eloquent
Event::listen('Illuminate\Database\Events\QueryExecuted', function ($query) {
var_dump($query->sql);
var_dump($query->bindings);
var_dump($query->time);
echo "<br><br><br>";
});
For a Laravel 8 application it could be useful to put the following in the AppServiceProvider.php file:
/**
* Bootstrap any application services.
*
* #return void
*/
public function boot()
{
// [...]
// Dump SQL queries on demand **ONLY IN DEV**
if (env('APP_ENV') === 'local') {
DB::enableQueryLog();
Event::listen(RequestHandled::class, function ($event) {
if ( $event->request->has('sql-debug') ) {
$queries = DB::getQueryLog();
Log::debug($queries);
dump($queries);
}
});
}
// [...]
}
Then appending &sql-debug=1 to the url will dump the queries.
How I can return object with all relations(ans sub objects relations?).
Now I use EJsonBehavior but it returns only first level relations, not sub related objects.
My source code:
$order = Order::model()->findByPk($_GET['id']);
echo $order->toJSON();
Yii::app()->end();
The eager loading approach retrieves the related AR instances together with the main AR instance(s). This is accomplished by using the with() method together with one of the find or findAll methods in AR. For example,
$posts=Post::model()->with('author')->findAll();
The above code will return an array of Post instances. Unlike the lazy approach, the author property in each Post instance is already populated with the related User instance before we access the property. Instead of executing a join query for each post, the eager loading approach brings back all posts together with their authors in a single join query!
We can specify multiple relationship names in the with() method and the eager loading approach will bring them back all in one shot. For example, the following code will bring back posts together with their authors and categories:
$posts=Post::model()->with('author','categories')->findAll();
We can also do nested eager loading. Instead of a list of relationship names, we pass in a hierarchical representation of relationship names to the with() method, like the following,
$posts=Post::model()->with(
'author.profile',
'author.posts',
'categories')->findAll();
The above example will bring back all posts together with their author and categories. It will also bring back each author's profile and posts.
Eager loading may also be executed by specifying the CDbCriteria::with property, like the following:
$criteria=new CDbCriteria;
$criteria->with=array(
'author.profile',
'author.posts',
'categories',
);
$posts=Post::model()->findAll($criteria);
or
$posts=Post::model()->findAll(array(
'with'=>array(
'author.profile',
'author.posts',
'categories',
)
);
I found the solution for that. you can use $row->attributes to create data
$magazines = Magazines::model()->with('articles')->findAll();
$arr = array();
$i = 0;
foreach($magazines as $mag)
{
$arr[$i] = $mag->attributes;
$arr[$i]['articles']=array();
$j=0;
foreach($mag->articles as $article){
$arr[$i]['articles'][$j]=$article->attributes;
$j++;
}
$i++;
}
print CJSON::encode(array(
'code' => 1001,
'magazines' => $arr,
));
This is the best piece of code I found after a long time search to meet this requirement.
This will work like Charm.
protected function renderJson($o) {
//header('Content-type: application/json');
// if it's an array, call getAttributesDeep for each record
if (is_array($o)) {
$data = array();
foreach ($o as $record) {
array_push($data, $this->getAttributes($record));
}
echo CJSON::encode($data);
} else {
// otherwise just do it on the passed-in object
echo CJSON::encode($this->getAttributes($o));
}
// this just prevents any other Yii code from being output
foreach (Yii::app()->log->routes as $route) {
if ($route instanceof CWebLogRoute) {
$route->enabled = false; // disable any weblogroutes
}
}
Yii::app()->end();
}
protected function getAttributes($o) {
// get the attributes and relations
$data = $o->attributes;
$relations = $o->relations();
foreach (array_keys($relations) as $r) {
// for each relation, if it has the data and it isn't nul/
if ($o->hasRelated($r) && $o->getRelated($r) != null) {
// add this to the attributes structure, recursively calling
// this function to get any of the child's relations
$data[$r] = $this->getAttributes($o->getRelated($r));
}
}
return $data;
}
Hi m a bit confused that how to retrieve node title by using this code
node_load($nid);
$title=$nid->title;
i have done this coding in block and i wants to retrieve from node id for displaying image.that images are normally uploaded at the site by using filezilla and it has same name as the node title.i have tried many forms of node_load(),but i m failure.so please tell me right option for this.
Thanks all.-Pranoti
Here is the reference for node_load
http://api.drupal.org/api/function/node_load
It returns an object which is the node.
$node = node_load($nid); // $nid contains the node id
$title = $node->title;
Please get a good book on Drupal Module development to learn the fundamentals.
Your question is a little confusing. Could you clean it up and explain better what you are trying to accomplish? In all events:
Node load takes either an numeric argument or an array of parameters to query, and returns a single node object. (As already mentioned, here's the API documentation: http://api.drupal.org/api/function/node_load).
Load with a numeric node id:
$nid = 55;
$node = node_load($nid);
$title = $node->title;
Load by querying on title:
$title = 'How to serve man';
$node = node_load(array('title' => $title));
$body = $node->body;
you can also load multiple node load efficiently by using the following code
<?php
$type = "product_type";
$nodes = node_load_multiple(array(), array('type' => $type));
foreach($nodes as $products):
?>
<?php print $products->nid; ?>
<?php print $products->title; ?>
<?php endforeach; ?>
also you can query any thing in the node load for example we have used type in query but we can also use title as mentioned in the above post by
"David Eads"
NODE LOAD BEST PRACTICES
If you are loading a lot of nodes with node_load(), make sure to use the $reset parameter so that every node isn't kept in the function's static cache (and increasing memory usage):
$nid = 55;
$node = node_load($nid, NULL, TRUE);