now, i get list Units from Database:
var sections = scheduler.serverList("type");
scheduler.createUnitsView({
name:"unit",
property:"type",
list:sections
});
$list = new OptionsConnector($res, $dbtype);
$list->render_table("doctors","id","id(value),first_name(first_name),last_name(last_name),middle_name(middle_name),spec(spec),image(image)");
$scheduler = new schedulerConnector($res, $dbtype);
$scheduler->set_options("type", $list);
But i want some query from Database for this. No render all values from Databases, just result from "Select *******"
Is it possible? Render_sql? Thank you advance
you can use render_sql method for this:
$list = new OptionsConnector($res, $dbtype);
$list->render_sql(
"SELECT * FROM doctors WHERE someColumn > " .$list->sql->escape("someValue") . " AND anotherColumn < ". $list->sql->escape("anotherValue"),
"id",
"id(value),first_name(first_name),last_name(last_name),middle_name(middle_name),spec(spec),image(image)"
);
$scheduler = new schedulerConnector($res, $dbtype);
$scheduler->set_options("type", $list);
The first parameter takes the sql query, and the rest parameters are the same as in render_table.
Also note that connectors don't support parameterized queries, but you can use $connector->sql->escape method if you need to insert request values into the query
Related
Right to the point.
I need to update a field in the database using the field to calculate the new value first.
E.g of fields: https://i.stack.imgur.com/FADH6.jpg
Now I am using the Joomla updateObject function. my goal is to take the "spent" value from the DB table without using a select statement.
Then I need to calculate a new value with it like (spent + 10.00) and update the field with the new value. Check out the code below:
// Create an object for the record we are going to update.
$object = new stdClass();
// Must be a valid primary key value.
$object->catid = $item['category'];
$object->spent = ($object->spent - $item['total']);
// Update their details in the users table using id as the primary key.
$result = JFactory::getDbo()->updateObject('#__mytable', $object, 'catid');
The bit which i need to make the calculation on is
$object->spent = ($object->spent - $item['total']);
I realise I can use a seperate insert statement but I am wondering if there is a better way. Any help is much appreciated.
It needs to work like this, WITHOUT THE SELECT (working example)
$query = $db->getQuery(true);
$query->select($db->quoteName('spent'));
$query->from($db->quoteName('#__mytable'));
$query->where($db->quoteName('catid')." = ". $item['category']);
// Reset the query using our newly populated query object.
$db->setQuery($query);
$oldspent = $db->loadResult();
// Create an object for the record we are going to update.
$object = new stdClass();
// Must be a valid primary key value.
$object->catid = $item['category'];
$object->spent = ($oldspent - $item['total']);
// Update their details in the users table using id as the primary key.
$result = JFactory::getDbo()->updateObject('#__mytable', $object, 'catid');
The sticking point with trying to use updateObject('#__mytable', $object, 'catid'); is that your query logic needs to reference the column name in the calculation to assign the "difference" as the new value. The raw mysql query syntax to update a column value with the value minus another value is like:
"`spent` = `spent` - {$item['total']}"
updateObject() will convert spent - {$item['total']} to a literal string, the database will expect a numeric value, so UPDATE results in a 0 value recorded. In other words, $db->getAffectedRows() will give you a positive count and there will be no errors generated, but you don't get the desired mathematical action.
The workaround is to discard updateObject() as a tool and build an UPDATE query without objects -- don't worry it's not too convoluted. I'll build in some diagnostics and failure checking, but you can remove whatever parts that you wish.
I have tested the following code to be successful on my localhost:
$db = JFactory::getDBO();
try {
$query = $db->getQuery(true)
->update($db->quoteName('#__mytable'))
->set($db->quoteName("price") . " = " . $db->qn("price") . " - " . (int)$item['total'])
->where($db->quoteName("catid") . " = " . (int)$item['category']);
echo $query->dump(); // see the generated query (but don't show to public)
$db->setQuery($query);
$db->execute();
if ($affrows = $db->getAffectedRows()) {
JFactory::getApplication()->enqueueMessage("Updated. Affected Rows: $affrows", 'success');
} else {
JFactory::getApplication()->enqueueMessage("Logic Error", 'error');
}
} catch (Exception $e) {
JFactory::getApplication()->enqueueMessage("Query Syntax Error: " . $e->getMessage(), 'error'); // never show getMessage() to public
}
Here is a StackOverflow page discussing the mysql subtraction logic: update a column by subtracting a value
I am developing a php project using Laravel 5.2. In my app I am retrieving records from database using manual query. But I am having a problem with retrieving records by using where in statement with csv.
Example how I am retrieving
$csv = "1,3,5";
$sql = "SELECT * FROM `items` WHERE `id` IN (?)";
$rows = DB::select($sql,[$csv]);
As you can see above I am retrieving three rows. But it returns only one row where id is 1. Why is that?
You can't do it like that. Each entry in your csv is a separate parameter, so for your code you would actually need IN (?, ?, ?), and then pass in the array of values. It would be pretty easy to write the code to do this (explode the string to an array, create another array of question marks the same size, put it all together).
However, you are using Laravel, so it would be easier to use the functionality Laravel provides to you.
Using the query builder, you can do this like:
$csv = "1,3,5";
// turn your csv into an array
$ids = explode(",", $csv);
// get the data
$rows = DB::table('items')->whereIn('id', $ids)->get();
// $rows will be an array of stdClass objects containing your results
dd($rows);
Or, if you have an Item model setup for your items table, you could do:
$items = Item::whereIn('id', $params)->get();
// $items will be a Collection of Item objects
dd($items);
Or, assuming id is the primary key of your items table:
// find can take a single id, or an array of ids
$items = Item::find($params);
// $items will be a Collection of Item objects
dd($items);
Edit
If you really want to do it the manual way, you could use a loop, but you don't need to. PHP provides some pretty convenient array methods.
$csv = "1,3,5";
// turn your csv into an array
$ids = explode(",", $csv);
// generate the number of parameters you need
$markers = array_fill(0, count($ids), '?');
// write your sql
$sql = "SELECT * FROM `items` WHERE `id` IN (".implode(',', $markers).")";
// get your data
$rows = DB::select($sql, $ids);
I am trying to construct a query that will basically pull all entries whose id's have 2 particular entries in another table so I am trying the below:
$query = $this->createQuery('e');
$subquery1 = $query->createSubquery('sea')
->select('sea.entry_id')
->from('Table sea')
->addWhere('sea.form_element_id = ?', $element)
->addWhere('sea.answer = ?', $answer)
->getDQL();
$subquery2 = $query->createSubquery('sea2')
->select('sea2.entry_id')
->from('Table sea2')
->addwhere('sea2.form_element_id = ?', $element2)
->addWhere('sea2.answer = ?', $answer2)
->getDQL();
$query->addWhere('e.id IN ?', $subquery1)
->addWhere('e.id IN ?', $subquery2);
return $query->execute();
However this is gives me an error on bound params.
What is the correct ways of constructing such subqueries?
NOTE that if I dont bind the params in the subqueries it works fine.
$nestedQuery = " id IN (SELECT sea.entry_id from table sea where sea.form_element_id = ? and sea.answer = ?) "
. " and id IN (SELECT sea2.entry_id from table sea2 where sea2.form_element_id = ? and sea2.answer = ?)";
return $this->findBySql($nestedQuery, array($param1, $param2, $param3, $param4));
That obviously returns a doctrine collection but you can do getFirst or loop through the returned objects or even use the Hydrator to get an array!
I need to be able to convert the following to Ci's active record delete method but I don't know how to use the OR in the delete statement. Could you please tell me how I'd do this correctly?
$this->db->query("DELETE FROM friend WHERE userid_friends = '{$userid}' AND friendId_friends = '{$targetedUserId}' OR userid_friends = '{$targetedUserId}' AND friendId_friends = '{$userid}' ");
I guess your trying this:
$this->db->query("DELETE FROM friend WHERE
( userid_friends = '{$userid}' AND friendId_friends = '{$targetedUserId}') OR
( userid_friends = '{$targetedUserId}' AND friendId_friends = '{$userid}') ");
(note the added parentheses for the two AND clauses)
But actually your not using CI's "DELETE" method just a query.
Using active record delete would be something like:
$this->db->where("userid_friends = '{$userid}' AND friendId_friends = '{$targetedUserId}'");
$this->db->or_where("userid_friends = '{$targetedUserId}' AND friendId_friends = '{$userid}'");
$this->db->delete('friend');
For debugging of complex queries I recommend you to use
echo $this->db->last_query();
As it shows you exactly how the final query was rendered by the Active record methods.
I need to perform this query:
SELECT * FROM (SELECT * FROM product WHERE car = 'large' ORDER BY onSale DESC) AS product_ordered GROUP BY type
In Symfony2 using the entity manager.
My basic query builder would be :
$query = $em->getRepository('AutomotiveBundle:Car')
->createQueryBuilder('p')
->where('pr.car = ?1')
->andWhere('pr.status = 1')
->orderBy('pr.onSale', 'DESC')
->setParameter(1, $product->getName())
->groupBy('p.type')
->getQuery();
But I cannot work out how to add in a subquery to this.
Ive tried making a separate query and joining it like:
->andWhere($query->expr()->in('pr.car = ?1',$query2->getQuery()));
But I get:
Call to undefined method Doctrine\ORM\Query::expr()
One trick is to build two queries and then use getDQL() to feed the first query into the second query.
For example, this query returns a distinct list of game ids:
$qbGameId = $em->createQueryBuilder();
$qbGameId->addSelect('distinct gameGameId.id');
$qbGameId->from('ZaysoCoreBundle:Event','gameGameId');
$qbGameId->leftJoin('gameGameId.teams','gameTeamGameId');
if ($date1) $qbGameId->andWhere($qbGameId->expr()->gte('gameGameId.date',$date1));
if ($date2) $qbGameId->andWhere($qbGameId->expr()->lte('gameGameId.date',$date2));
Now use the dql to get additional information about the games themselves:
$qbGames = $em->createQueryBuilder();
$qbGames->addSelect('game');
$qbGames->addSelect('gameTeam');
$qbGames->addSelect('team');
$qbGames->addSelect('field');
$qbGames->addSelect('gamePerson');
$qbGames->addSelect('person');
$qbGames->from('ZaysoCoreBundle:Event','game');
$qbGames->leftJoin('game.teams', 'gameTeam');
$qbGames->leftJoin('game.persons', 'gamePerson');
$qbGames->leftJoin('game.field', 'field');
$qbGames->leftJoin('gameTeam.team', 'team');
$qbGames->leftJoin('gamePerson.person', 'person');
// Here is where we feed in the dql
$qbGames->andWhere($qbGames->expr()->in('game.id',$qbGameId->getDQL()));
Kind of a long example but i didn't want to edit out stuff and maybe break it.
You can use DBAL for performing any sql query.
$conn = $this->get('database_connection');//create a connection with your DB
$sql="SELECT * FROM (SELECT * FROM product WHERE car =? ORDER BY onSale DESC) AS product_ordered GROUP BY type"; //Your sql Query
$stmt = $conn->prepare($sql); // Prepare your sql
$stmt->bindValue(1, 'large'); // bind your values ,if you have to bind another value, you need to write $stmt->bindValue(2, 'anothervalue'); but your order is important so on..
$stmt->execute(); //execute your sql
$result=$stmt->fetchAll(); // fetch your result
happy coding