Create database if not exists from DBAL level - doctrine-orm

I'm trying to create database like this:
const QUERY_DB_CREATE = "
CREATE DATABASE :db_name
";
if (database is not exists) {
$stmt = $conn->prepare(self::QUERY_DB_CREATE);
$stmt->bindValue(':db_name', $db_name, 'string');
return $stmt->execute();
}
Error
PHP Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42601]: Syntax error: 7 ERROR: syntax error at or near "'testtesttest2'"
What am I doing wrong?

You should take a look at the DoctrineBundle command (for use in the Symfony framework) for creating databases. Without knowing more about your implementation details, these lines especially should be useful in your case:
$tmpConnection = DriverManager::getConnection($params);
...
$tmpConnection->getSchemaManager()->createDatabase($name);

Related

Doctrine2 loading DoctrineExtensions

I want to use the DAY() and YEAR() functions in my Doctrine2 query builder. But somehow I keep on getting errors:
Fatal error: Uncaught Doctrine\ORM\Query\QueryException: SELECT DAY(h.date) AS day FROM Entities\Hit h GROUP BY day in
PHP Code:
$totalHits = $this->registry->entityManager->getRepository('Entities\Hit')
->createQueryBuilder('h')
->select('DAY(h.date) AS day')
->groupBy('day')
->getQuery()->getResult();`
Loading the doctrineExtensions through composer or through the autoloader wouldn't fix it:
$classLoader = new \Doctrine\Common\ClassLoader('DoctrineExtensions', __DIR__.'/../vendor/beberlei/DoctrineExtensions');
$classLoader->register();
Am I loading the DoctrineExtensions just wrongly or is there something else?
Fixed. Adding:
$entityManagerConfig->addCustomDatetimeFunction('YEAR', 'DoctrineExtensions\Query\Sqlite\Year');
$entityManagerConfig->addCustomDatetimeFunction('MONTH', 'DoctrineExtensions\Query\Sqlite\Month');
$entityManagerConfig->addCustomDatetimeFunction('DAY', 'DoctrineExtensions\Query\Sqlite\Day');
solved the problem

'Invalid schema name' error thrown by Doctrine, but the raw SQL seems to work

I'm using some custom DQL functions to filter rows by some JSONB fields in PostgreSQL. Here's my query function:
private function findTopLevelResources(): array {
return $this->createQueryBuilder('r')
->where("JSON_EXISTS(r.contents, '-1') = FALSE")
->getQuery()
->getResult();
}
Running this code results in DriverException from AbstractPostgreSQLDriver:
An exception occurred while executing 'SELECT r0_.id AS id_0, r0_.marking AS marking_1, r0_.contents AS contents_2, r0_.kind_id AS kind_id_3 FROM resource r0_ WHERE r0_.contents?'-1' = false':
SQLSTATE[3F000]: Invalid schema name: 7 ERROR: schema "r0_" does not exist
LINE 1: ... r0_.kind_id AS kind_id_3 FROM resource r0_ WHERE r0_.conten...
^
I tried to execute the raw SQL query manually from PHPStorm and it worked, no errors.
How do I get this to work in Doctrine?
Why doesn't this query work with Doctrine, but does when I test it manually?
Here's JSON_EXISTS: (based on syslogic/doctrine-json-functions)
class JsonExists extends FunctionNode
{
const FUNCTION_NAME = 'JSON_EXISTS';
const OPERATOR = '?';
public $jsonData;
public $jsonPath;
public function getSql(SqlWalker $sqlWalker)
{
$jsonData = $sqlWalker->walkStringPrimary($this->jsonData);
$jsonPath = $this->jsonPath->value;
return $jsonData . self::OPERATOR . "'$jsonPath'";
}
public function parse(Parser $parser)
{
$parser->match(Lexer::T_IDENTIFIER);
$parser->match(Lexer::T_OPEN_PARENTHESIS);
$this->jsonData = $parser->StringPrimary();
$parser->match(Lexer::T_COMMA);
$this->jsonPath = $parser->StringPrimary();
$parser->match(Lexer::T_CLOSE_PARENTHESIS);
}
}
Registered via Symfony's YAML config like this:
doctrine:
orm:
dql:
numeric_functions:
json_exists: Syslogic\DoctrineJsonFunctions\Query\AST\Functions\Postgresql\JsonExists
Versions of stuff:
PHP 7.1.1
doctrine/dbal v2.6.1
doctrine/orm dev-master e3ecec3 (== 2.6.x-dev)
symfony/symfony v3.3.4
The error message is a false clue.
Actual problem is caused by PDO (this is why it works from PHPStorm). When it sees a query like this:
SELECT * FROM foo WHERE contents?'bar'
It treats it like a parametrized query and the question mark ? as a parameter. For some reason it sometimes results in nonsensical error messages. This specific case could be solved by adding a space after the question mark, but it won't work for operators ?| and ?& which can't have a space in the middle.
The solution is to use functions corresponding to operators (this question saved the day). One can find out how they are called using queries like this one:
SELECT oprname, oprcode FROM pg_operator WHERE oprname IN ('?', '?|', '?&')
Here's the part of result related to JSON:
? → jsonb_exists
?| → jsonb_exists_any
?& → jsonb_exists_all
So instead of previous query which causes problems via PDO, one can use this equivalent one:
SELECT * FROM foo WHERE jsonb_exists(contents, 'bar')

Unparsable MOF Query When Trying to Register Event

Update 2
I accepted an answer and asked a different question elsewhere, where I am still trying to get to the bottom of this.
I don't think that one-lining this query is the answer, as I am still not getting the required results (and multi-lining queries is allowed in .mof, as shown in the URLs in comments to the answer ...
Update
I rewrote the query as a one-liner as suggested, but still got the same error! As it was still talking about lines 11-19 I knew there must be another issue. After saving a new file with the change, I reran mofcomp and it appears to have loaded, but the event which I have subscribed to simply does not work.
I really feel that there is not enough documentation on this topic and it is hard to work out how I am meant to debug this - any help on this would be much appreciated, even if this means using a different more appropriate method.
I have the following .mof file, which I would like to use to register an event on my system :
#pragma namespace("\\\\.\\root\\subscription")
instance of __EventFilter as $EventFilter
{
Name = "Event Filter Instance Name";
Query = "Select * from __InstanceCreationEvent within 1 "
"where targetInstance isa \"Cim_DirectoryContainsFile\" "
"and targetInstance.GroupComponent = \"Win32_Directory.Name=\"c:\\\\test\"\"";
QueryLanguage = "WQL";
EventNamespace = "Root\\Cimv2";
};
instance of ActiveScriptEventConsumer as $Consumer
{
Name = "TestConsumer";
ScriptingEngine = "VBScript";
ScriptText =
"Set objFSO = CreateObject(\"Scripting.FileSystemObject\")\n"
"Set objFile = objFSO.OpenTextFile(\"c:\\test\\Log.txt\", 8, True)\n"
"objFile.WriteLine Time & \" \" & \" File Created\"\n"
"objFile.Close\n";
// Specify any other relevant properties.
};
instance of __FilterToConsumerBinding
{
Filter = $EventFilter;
Consumer = $Consumer;
};
But whenever I run the command mfcomp myfile.mof I am getting this error:
Parsing MOF file: myfile.mof
MOF file has been successfully parsed
Storing data in the repository...
An error occurred while processing item 1 defined on lines 11 - 19 in file myfile.mof:
Error Number: 0x80041058, Facility: WMI
Description: Unparsable query.
Compiler returned error 0x80041058
This error appears to be caused by incorrect syntax in the query, but I don't understand where I have gone wrong with this - is anyone able to advise?
There are no string concatenation or line continuation characters being used in building "Query". To keep it simple, you could put the entire query on one line.

Controller Unit Test fails with SQLSTATE[42000] error

I want to unit test a controller action and have some problem toio excecute it.
The Error i got is the following:
SQLSTATE[42000]: Syntax error or access violation: 1064 You have an
error in your SQL syntax; check the manual that corresponds to your
MySQL server version for the right syntax to use near 'questionExists'
at line 1
The Method:
questionExists
is defined inside the Question Model.
My test function looks like this:
public function testView() {
$result = $this->testAction('/questions/questions/view/1', array('return' => 'vars'));
}
The Controller action i want to test looks like this:
public function view($id = null) {
if (!$this->Question->questionExists($id, 'id_virtual')) {
throw new NotFoundException(__('Invalid question'));
}
$options = array('conditions' => array('Question.id_virtual' => $id));
$this->set('question', $this->Question->find('first', $options));
}
So this is very confusing to me.
Can anybody point me to the right direction ?
Your model class is not found, CakePHP creates an instance on the fly for that table but this is not more than the basic Model class. When the code is then called it tries to call that method on an instance that is not your Question model in your app. You'll have to figure out what that happens.

Pgocaml customizing sql queries

I am trying to write a query that simply drops a table.
let drop_table dbh table_name =
let query = String.concat " " ["drop table"; table_name] in
PGSQL(dbh) query
I am receiving the following error from the query
File "save.ml", line 37, characters 10-11:
Parse error: STRING _ expected after ")" (in [expr])
File "save.ml", line 1:
Error: Preprocessor error
Why am I getting this error? It appears that this function is valid Ocaml syntax.
Thanks guys!
You cannot construct query when using PG'OCaml's syntax extension. You must provide a literal string. This is the tradeoff for getting PG'Ocaml's compile time query validation. If query could be any OCaml expression, PG'OCaml wouldn't know how to validate it at compile time.
Personally, I've stopped using the syntax extension completely. My feeling is it doesn't scale to large projects. Instead I call prepare and execute directly. For example, this function will create a new database connection (assuming the connection parameters are previously defined), run the given query, and close the connection:
let exec query =
let db = PGOCaml.connect ~host ~user ~database ~port ~password ()
PGOCaml.prepare db ~query ();
let ans = PGOCaml.execute db ~params:[] () in
PGOCaml.close db;
ans
Of course, this isn't a robust implementation and shouldn't be used in production code. It doesn't handle errors and isn't asynchronous.