Hi I have this function that get query and array with parameters
public function query($sql,$array){ return $this->db_conn->executeQuery($sql,$array); }
There is lots of places that use in this function.
In php 8.0 need to change to this:
public function query(string $query, ?int $fetchMode = null, mixed ...$fetchModeArgs)
what is the best way to change this without change in all the places that use this function ?
in php 7.4 it is work.
in php 8.0 this is the error I get
fatal error image query
I think to change this to different function
or
add the array in the end of the function
Related
I have created one function using MongoDB shell but I am unable to use this function and also don't know how to get the function definition to edit or check.
db.system.js.insertOne({ _id : "getSessions" , value : function (clientid){ //some code }})
and I used db.eval(getSessions(1)) for call this function but facing error ReferenceError: getSessions is not defined
Please help me for call this function and also I want to get function definition from MongoDb Shell.
Using Cake PHP 3.x and we have a PostgreSQL 9.6.3 db.
We make extensive use of PG functions that return tables - for example
select * from getStudies(cid,UID, SID);
Functions are used for various applications - one of them is more complex filtering of rows from a table - where Cake has difficulty.
One option is to implement the logic as a custom Cake Model method in PHP, but the SQL code and amount of joins makes it messy in PHP.
We think we should be able to create a Cake Model from the function and then pass the parameters via Cake Model methods but so far - it is unclear how to do that.
This code works but it returns the data without the columns and I have not been able to figure out how to use reflection to get the _columns properties from the Model schema.
public function getStudies($data = array()) {
$customer_id = $data['customer_id'];
$connection = ConnectionManager::get('default');
$sql = "select * from getStudies($customer_id)";
$results = $stmt->fetch();
return $results; }
So -
Option 1 - figure out how to model a function that returns tables as a cake model
Option 2 - use reflection to get the _columns and merge it with the query result
Thanks
As you've mentioned in the comments, the schema columns details can be accessed via its columns() method. You could process the results manually using the schema information, or use the function as the source, just like in your example.
The query builders from() method supports raw SQL as well as expressions, so you can basically add whatever you like, however expressions will be wrapped in parentheses, which will be invalid SQL in case of a function call, so you'd have to go with raw SQL, and bindings (please never inject (user)data into queries directly):
public function getStudies($customerId)
{
return $this
->find()
->from([
$this->alias() => 'getStudies(:customerId)'
])
->bind(':customerId', $customerId, 'integer');
}
That should generate a query similar to
SELECT
Alias.column1, Alias.column2, ...
FROM
getStudies(:customerId) Alias
I have written a function in PostgreSQL for insertion as follows:
CREATE OR REPLACE FUNCTION public.insert_blog("Url" character)
RETURNS void AS
$BODY$Begin
Insert Into "Blogs"("Url") Values("Url");
End$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
ALTER FUNCTION public.insert_blog(character)
OWNER TO postgres;
The above function adds an entry into the Blogs table (Url is a parameter).
I am trying to use this function in .Net Core (Npgsql.EntityFrameworkCore.PostgreSQL) as follows:
[HttpPost]
[ValidateAntiForgeryToken]
public IActionResult Create(Blog blog)
{
if (ModelState.IsValid)
{
//This works fine
var count = _context.Blogs.FromSql("Select insert_blog({0})", blog.Url).Count();
//This doesn't work -- it gives an error of "42601: syntax error at or near "insert_blog""
//var count = _context.Blogs.FromSql("insert_blog #Url={0}", blog.Url).Count();
return RedirectToAction("Index");
}
return View(blog);
}
Can someone tell me why the second command is not working? Also, even if the first command is working, is it the right way?
Since I have to write .FromSql(...).Count() in order for it to work, if I remove .Count() item doesn't get inserted. Can someone tell me why this is happening?
Is there any good article on using .FromSql() or "Using Postgres functions in entity framework core" (I'd guess that this is a new feature and that that's why I couldn't find much data on this)?
Can some one tell me why the second command is not working? Also even if the first command is working, is it the right way?
It's simply just not the way PostgreSQL syntax works. Select insert_blog({0}) is indeed the right way.
Since I have to write .FromSql(...).Count() in order for it to work. If I remove ".Count()" item doesn't get inserted. Can someone tell me why this is happening?
FromSql behaves just like Where and other functions on an IQueryable. Execution is postponed until the results are requested, because it will try to do everything in one database query.
To make sure your query actually gets executed, you need to call a method that returns something other than IQueryable such as .Count() or .ToList(). More info can be found here: https://learn.microsoft.com/en-us/ef/core/querying/overview#when-queries-are-executed
I'm unable to run the FindBy magic function property in Extbase MVC
$title=array(0 =>'Books Day');
$each_event=$this->eventRepository->findByTitle($title);
$each_event is returning an object of type TYPO3\CMS\Extbase\Persistence\Generic\QueryResult .
How do I make this work?
I also tried passing in a string to findByTitle and findByOne. Both don;t work! :(
I'm using TYPO3 6.1 and extension builder.
The last part of those magic functions always needs to be a field in the database. So "title" must be in your model. You might have a field "one" for your object, but I guess you meant findOneByTitle?
The object type QueryResult is correct. You can turn it into an array for debugging purpose for example:
$foo = $query->execute()->toArray();
By the way: check wether your eventRepository is null or not and you could try this to see if it works at all:
$result = $this->myRepository->findAll();
Try
$each_event=$this->eventRepository->findByTitle($title)->toArray();
Reference to the QueryResult.
As said in the documentation, it returns a QueryResultInterface|array.
As a consequence you have to loop over the result like this:
foreach($each_event as $single_event) {
$single_event->getProperty();
}
If you are sure that it returns only one single value you could also access it by the index 0:
$each_event[0]->getProperty();
I'm recently have learned to use Zend Framework. I did a simple CRUD application. But now I want to use a existing database for a more complex application and I want to know how I call a stored procedure in the Model, how to send parameters, how to read the results and store them in an array in PHP. Please. I appreciate any kind of help :)
It's not too hard. Here's an example of a MySQL stored procedure with an IN parameter, an OUT parameter, and a result set:
CREATE PROCEDURE MyProc(IN i INTEGER, OUT o INTEGER)
BEGIN
SELECT i+10 INTO o;
SELECT i, o;
END
You can call this with the query() method, and pass a parameter:
$stmt = $db->query("CALL MyProc(?, #output)", array(25));
print_r( $stmt->fetchAll() );
The trick is that MySQL stored procs might return multiple result sets (if the proc had multiple SELECT queries for instance). So the API must advance through all result sets before you can execute another SQL query. Or else you get the "Commands out of sync" error.
If you use the PDO_MySQL adapter:
while ($stmt->nextRowset()) { }
If you use the MySQLi adapter, you'll find that Zend_Db_Statement_Mysqli doesn't implement nextRowset(), so you have to call the internal mysqli connection object:
while ($db->getConnection()->next_result()) { }
Once you clear the result sets, you can run subsequent SQL queries, for example to fetch the value of the procedure's OUT parameter:
$stmt = $db->query("SELECT #output");
print_r( $stmt->fetchAll() );
Great answer from Bill. Just for completeness, if you encounter:
SQLSTATE[HY000]: General error: 2053
When using this method to get a result set from your procedure, check your arguments. I refactored a method and was passing NULLs as arguments to the procedure as the variables I'd used were out of scope. Once I'd fixed this silly mistake the problem went away (to be replaced by another):
SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other
unbuffered queries are active. Consider using PDOStatement::fetchAll().
I'm using $stmt->fetchAll() though. I switched to using prepare() and execute() in place of query(). Switching to mysqli from pdo_mysql in my Zend_Db config finally got things working for me. I found this information from the following SO question:
Call Multiple Stored Procedures with the Zend Framework
If someone is looking for ZendFramework 2 \ Zend Expressive using Zend\Db :
There is another way to do this using createStatement() method.
// prepare create statement from adapter
$stmt = $this->getAdapter()->createStatement();
$stmt->prepare('CALL myproc("myVal")');
// execute sql query
$records = $stmt->execute();
// manipulate results
if ($records instanceof ResultInterface && $records->isQueryResult()) {
$resultSet = new ResultSet;
$resultSet->initialize($records);
// return records if found
if (count($resultSet)) {
// return array of result set
return $resultSet->toArray();
}
// if no records found
return array()
}
$db = Zend_Db_Table::getDefaultAdapter();
$stmt = $db->query("CALL procedure()");
$data = $stmt->fetchAll();