I am trying to to show external database data onto custom admin tab but getting error.Can some one help me to resolve this . I am able to fetch data from external DB but when i pass it to the GridField it gives me this error.
Error###
"get_class() expects parameter 1 to be object, array given"
and here is my code
public function getList() {
$externalDB = $object = Injector::inst ()->create ( 'ExternalDatabase' );
$results = $externalDB->query ( 'SELECT "Course" FROM "Courses"' );
$list = ArrayList::create ();
foreach ( $results as $row ) {
$list->push ( $row ) ;
}
return $list;
}
I have ExternalDatabase Class which resolve my query and return result.
Instead of pushing the row directly, try doing
$list->push(ArrayData::create($row));
Related
I've written an action in WordPress that grabs the rows from a table and encodes them in JSON format, so I can use them with the FullCalendar javascript event calendar.
The date fields from the table need to be formatted ISO8601.
In other words, when the DB renders the date/time: 2017-08-06 10:22:20, I need it converted after the query to: 2017-08-06T10:22:20 for the date fields in the query.
I'm not concerned about timezone offsets.
My function:
add_action( 'getmyevents', 'get_my_events' );
function get_my_events( $atts = [], $content = null ) {
// Use WordPress database functions
global $wpdb;
// List of events will be stored in JSON format
$json = array();
// Query retrieves list of events
$mytable = $wpdb->prefix . "my_events";
$myids = $wpdb->get_results("SELECT * FROM " . $mytable );
// sending the encoded result to success page
echo json_encode( $myids, JSON_UNESCAPED_SLASHES );
// return JSON
return $json;
}
Can someone give me a quick, direct way to convert the datetime strings in the query to ISO8601?
Maybe you can try something like this.
Although I don't know the name of your column. Uncomment the print_r to get the column name.
foreach ($myids as $key => $row) {
// print_r($row);
$date_reformatted = strtotime($row->date_col);
$myids[$key]->date_col = date( 'c', $date_reformatted );
}
It isn't the ideal answer I was looking for, but I did come up with a working solution. Mark's suggestion about filtering during the query gave me the clue I needed for it.
add_action( 'getmyevents', 'get_my_events' );
function get_my_events( $atts = [], $content = null ) {
global $wpdb;
// Values sent via ajax to calendar from my_events table
// List of events
$json = array();
// Query that retrieves events
$mytable = $wpdb->prefix . "my_events";
$myids = $wpdb->get_results( 'SELECT id, title, url, DATE_FORMAT( start, "%Y-%m-%d\T%H:%i:%s" ) as start, DATE_FORMAT( end, "%Y-%m-%d\T%H:%i:%s" ) as end, allDay FROM ' . $mytable );
// sending the encoded result to success page
echo json_encode( $myids, JSON_UNESCAPED_SLASHES );
// return JSON
return $json;
}
However, if someone else can come up with an answer that doesn't require me to specify columns by name, that would be great. Even better would be not formatting within the query at all, but rather formatting afterward. I always like to minimize processor use by MySQL as much as possible.
I am retrieving data from database for multiple rows using the get_result() function in wordpress.
I am able to retrieve the required data but the format is wrong - how can I fix it?
Array ([0] => stdClass Object ( [siteNAME] => test0 )
I need the format to be:
test0, test1, test2
Code:
$result2 = $wpdb->get_results('select siteNAME from `site_info` where ownerID=159' );
print_r($result2);
Try 'echo' instead of 'print_r'.
With 'ownerID', check this code:
$result2 = $wpdb->get_results('select siteNAME from `site_info` where ownerID=159' );
foreach($result2 as $result) {
echo $result->siteNAME;
}
OR
Without 'ownerID', check this code:
$result2 = $wpdb->get_results('select siteNAME from `site_info` ');
foreach($result2 as $result) {
echo $result->siteNAME;
echo "<br/>";
}
print_r() function is mainly used for printing arrays.
Hope, this may be helpful for you.
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.
I am looking for a way to retrieve all models in a database. Then loop through all of the models and read out the values for name, firstname and phonenumber.
So far I've gotten this and failed to go past it:
$searchModel = new EmployeeSearch();
$dataProvider = $searchModel->search(Yii::$app->request->queryParams);
I am then looking to implement those three values in a simple HTML table:
<tr><td>$firstname</td><td>$name</td><td>$phone</td></tr>
The table should be part of a PDF output, so ideally I would save it to a variable:
$html_table = '<tr><td>$firstname</td><td>$name</td><td>$phone</td></tr>';
I would need to get this for every model that fulfills the criteria of status = 'active' in the database.
So far I've only been able to get tables via gridView and not in a HTML template either.
You don't really need a data provider to achieve this, you could simply try :
$models = Employee::find()->where(['status'=>'active'])->orderBy('name ASC')->all();
foreach ($models as $model) {
echo "<tr><td>{$model->firstname}</td><td>{$model->name}</td><td>{$model->phone}</td></tr>";
}
Read more : http://www.yiiframework.com/doc-2.0/guide-db-active-record.html#querying-data
You can get all models like this:
$employees = Employee::find()
->select('firstname, name, phone')
->asArray()
->where(['status'=>'active'])
->all();
This way you will get an array of arrays containing the 3 selected fields, so now you only need to use a foreach to loop through them and create the table:
$html = '<table>';
foreach($employees as $employee) {
$html .= '<tr><td>'.$employee['firstname'].'</td><td>'.$employee['name'].'</td><td>'.$employee['phone'].'</td></tr>';
}
$html .= '</table>'
I've built up multiple dynamic sidebars for front page item manipulation. Each sidebar contains a Text widget, and I want to retrieve each widget's content (according to widget ID) from wp_options.
Basically, the structure is dbName -> wp_options -> option_id #92 contains the following:
a:9:{i:2;a:0:{}i:3;a:3:
{s:5:"title";s:0:"";s:4:"text";s:2:"mainItem";s:6:"filter";b:0;}i:4;a:3:
{s:5:"title";s:0:"";s:4:"text";s:9:"leftThree";s:6:"filter";b:0;}i:5;a:3:
{s:5:"title";s:0:"";s:4:"text";s:10:"rightThree";s:6:"filter";b:0;}i:6;a:3:
{s:5:"title";s:0:"";s:4:"text";s:8:"rightTwo";s:6:"filter";b:0;}i:7;a:3:
{s:5:"title";s:0:"";s:4:"text";s:8:"rightOne";s:6:"filter";b:0;}i:8;a:3:
{s:5:"title";s:0:"";s:4:"text";s:7:"leftOne";s:6:"filter";b:0;}i:9;a:3:
{s:5:"title";s:0:"";s:4:"text";s:7:"leftTwo";s:6:"filter";b:0;}
s:12:"_multiwidget";i:1;}
[Actually all on one line.]
I want to retrieve the following strings:
mainItem
leftOne/leftTwo/leftThree
rightOne/rightTwo/rightThree
What's the syntax for such a query? And how can I add it to the PHP template?
You can pull all of the information about a type of widget from the database like so:
$text_widgets = get_option( 'widget_text' );
There's no need to use mySQL to get this. This will return an array of all the stored widgets of the type 'text'. Then you can loop through this array and do stuff with the internal properties of each like so:
foreach ( $text_widgets as $widget ) {
extract( $widget );
// now you have variables: $mainItem, $leftOne, $leftTwo, etc.
// do something with variables
}
Or, if you already know the ID's of the widgets you want to interact with, you can access the properties like this:
$mainItem = $text_widgets[17]['mainItem'];
Try below code snippet. It return the array of all widgets stored data.
// 1. Initialize variables
$data = '';
$all_stored_widgets = array();
// 2. Get all widgets using - `$GLOBALS['wp_widget_factory']`
$all_widgets = $GLOBALS['wp_widget_factory'];
foreach ($all_widgets->widgets as $w => $value) {
$widget_data = get_option( 'widget_' . $value->id_base );
foreach ($widget_data as $k => $v) {
if( is_numeric( $k ) ) {
$data['id'] = "{$value->id_base}-{$k}";
$data['options'] = $v;
$all_widgets_css[$value->id_base][] = $data;
}
}
}
// 3. Output:
echo '<pre>';
print_r( $all_stored_widgets );
echo '</pre>';
Output: