Yajra\Oci8\Oci8Connection

Complexity

Total Complexity

46

Size/Duplication

Total Lines	465
Duplicated Lines	0 %

Coupling/Cohesion

Components	6
Dependencies	10

Test Coverage

Coverage

0%

Importance

Changes

0

28 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	6	1
A	getSchema()	0	4	1
A	setSchema()	0	9	1
A	setSessionVars()	0	16	4
A	getSequence()	0	4	1
A	setSequence()	0	4	1
A	getTrigger()	0	4	1
A	setTrigger()	0	4	1
A	getSchemaBuilder()	0	8	2
A	table()	0	8	1
A	setDateFormat()	0	9	1
A	getDoctrineConnection()	0	12	2
A	getDoctrineDriver()	0	4	1
A	executeFunction()	0	11	1
A	executeProcedure()	0	8	1
A	executeProcedureWithCursor()	0	17	1
A	createSqlFromProcedure()	0	11	3
A	createStatementFromProcedure()	0	6	1
A	createStatementFromFunction()	0	8	2
A	bindValues()	0	6	2
A	getDefaultQueryGrammar()	0	4	1
A	withTablePrefix()	0	4	1
A	withSchemaPrefix()	0	6	1
A	getConfigSchemaPrefix()	0	4	2
A	getDefaultSchemaGrammar()	0	4	1
A	getDefaultPostProcessor()	0	4	1
B	addBindingsToStatement()	0	21	5
B	causedByLostConnection()	0	31	5

<?php

namespace Yajra\Oci8;

use PDO;
use Exception;
use PDOStatement;
use Illuminate\Support\Str;
use Yajra\Pdo\Oci8\Statement;
use Yajra\Oci8\Schema\Trigger;
use Yajra\Oci8\Schema\Sequence;
use Illuminate\Database\Grammar;
use Illuminate\Database\Connection;
use Doctrine\DBAL\Connection as DoctrineConnection;
use Yajra\Oci8\Query\OracleBuilder as QueryBuilder;
use Yajra\Oci8\Schema\OracleBuilder as SchemaBuilder;
use Doctrine\DBAL\Driver\OCI8\Driver as DoctrineDriver;
use Yajra\Oci8\Query\Grammars\OracleGrammar as QueryGrammar;
use Yajra\Oci8\Query\Processors\OracleProcessor as Processor;
use Yajra\Oci8\Schema\Grammars\OracleGrammar as SchemaGrammar;

class Oci8Connection extends Connection
{
    const RECONNECT_ERRORS = 'reconnect_errors';

    /**
     * @var string
     */
    protected $schema;

    /**
     * @var \Yajra\Oci8\Schema\Sequence
     */
    protected $sequence;

    /**
     * @var \Yajra\Oci8\Schema\Trigger
     */
    protected $trigger;

    /**
     * @param PDO|\Closure $pdo
     * @param string       $database
     * @param string       $tablePrefix
     * @param array        $config
     */
    public function __construct($pdo, $database = '', $tablePrefix = '', array $config = [])
    {
        parent::__construct($pdo, $database, $tablePrefix, $config);
        $this->sequence = new Sequence($this);
        $this->trigger  = new Trigger($this);
    }

    /**
     * Get current schema.
     *
     * @return string
     */
    public function getSchema()
    {
        return $this->schema;
    }

    /**
     * Set current schema.
     *
     * @param string $schema
     * @return $this
     */
    public function setSchema($schema)
    {
        $this->schema = $schema;
        $sessionVars  = [
            'CURRENT_SCHEMA' => $schema,
        ];

        return $this->setSessionVars($sessionVars);
    }

    /**
     * Update oracle session variables.
     *
     * @param array $sessionVars
     * @return $this
     */
    public function setSessionVars(array $sessionVars)
    {
        $vars = [];
        foreach ($sessionVars as $option => $value) {
            $vars[] = (strtoupper($option) == 'CURRENT_SCHEMA') ?
                "$option  = $value" :
                "$option  = '$value'";
        }

        if ($vars) {

The expression $vars of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using ! empty($expr) instead to make it clear that you intend to check for an array without elements.

            $sql = 'ALTER SESSION SET ' . implode(' ', $vars);
            $this->statement($sql);
        }

        return $this;
    }

    /**
     * Get sequence class.
     *
     * @return \Yajra\Oci8\Schema\Sequence
     */
    public function getSequence()
    {
        return $this->sequence;
    }

    /**
     * Set sequence class.
     *
     * @param \Yajra\Oci8\Schema\Sequence $sequence
     * @return \Yajra\Oci8\Schema\Sequence
     */
    public function setSequence(Sequence $sequence)
    {
        return $this->sequence = $sequence;
    }

    /**
     * Get oracle trigger class.
     *
     * @return \Yajra\Oci8\Schema\Trigger
     */
    public function getTrigger()
    {
        return $this->trigger;
    }

    /**
     * Set oracle trigger class.
     *
     * @param \Yajra\Oci8\Schema\Trigger $trigger
     * @return \Yajra\Oci8\Schema\Trigger
     */
    public function setTrigger(Trigger $trigger)
    {
        return $this->trigger = $trigger;
    }

    /**
     * Get a schema builder instance for the connection.
     *
     * @return \Yajra\Oci8\Schema\OracleBuilder
     */
    public function getSchemaBuilder()
    {
        if (is_null($this->schemaGrammar)) {
            $this->useDefaultSchemaGrammar();
        }

        return new SchemaBuilder($this);
    }

    /**
     * Begin a fluent query against a database table.
     *
     * @param string $table
     * @return \Yajra\Oci8\Query\OracleBuilder
     */
    public function table($table)
    {
        $processor = $this->getPostProcessor();

        $query = new QueryBuilder($this, $this->getQueryGrammar(), $processor);

        return $query->from($table);
    }

    /**
     * Set oracle session date format.
     *
     * @param string $format
     * @return $this
     */
    public function setDateFormat($format = 'YYYY-MM-DD HH24:MI:SS')
    {
        $sessionVars = [
            'NLS_DATE_FORMAT'      => $format,
            'NLS_TIMESTAMP_FORMAT' => $format,
        ];

        return $this->setSessionVars($sessionVars);
    }

    /**
     * Get doctrine connection.
     *
     * @return \Doctrine\DBAL\Connection
     */
    public function getDoctrineConnection()
    {
        if (is_null($this->doctrineConnection)) {
            $data                     = ['pdo' => $this->getPdo(), 'user' => $this->getConfig('username')];
            $this->doctrineConnection = new DoctrineConnection(
                $data,
                $this->getDoctrineDriver()
            );
        }

        return $this->doctrineConnection;
    }

    /**
     * Get doctrine driver.
     *
     * @return \Doctrine\DBAL\Driver\OCI8\Driver
     */
    protected function getDoctrineDriver()
    {
        return new DoctrineDriver();
    }

    /**
     * Execute a PL/SQL Function and return its value.
     * Usage: DB::executeFunction('function_name(:binding_1,:binding_n)', [':binding_1' => 'hi', ':binding_n' =>
     * 'bye'], PDO::PARAM_LOB).
     *
     * @param string $functionName
     * @param array  $bindings (kvp array)
     * @param int    $returnType (PDO::PARAM_*)
     * @param int    $length
     * @return mixed $returnType
     */
    public function executeFunction($functionName, array $bindings = [], $returnType = PDO::PARAM_STR, $length = null)
    {
        $stmt = $this->createStatementFromFunction($functionName, $bindings);

        $stmt = $this->addBindingsToStatement($stmt, $bindings);

        $stmt->bindParam(':result', $result, $returnType, $length);
        $stmt->execute();

        return $result;
    }

    /**
     * Execute a PL/SQL Procedure and return its results.
     *
     * Usage: DB::executeProcedure($procedureName, $bindings).
     * $bindings looks like:
     *         $bindings = [
     *                  'p_userid'  => $id
     *         ];
     *
     * @param  string $procedureName
     * @param  array  $bindings
     * @return bool
     */
    public function executeProcedure($procedureName, array $bindings = [])
    {
        $stmt = $this->createStatementFromProcedure($procedureName, $bindings);

        $stmt = $this->addBindingsToStatement($stmt, $bindings);

        return $stmt->execute();
    }

    /**
     * Execute a PL/SQL Procedure and return its cursor result.
     * Usage: DB::executeProcedureWithCursor($procedureName, $bindings).
     *
     * https://docs.oracle.com/cd/E17781_01/appdev.112/e18555/ch_six_ref_cur.htm#TDPPH218
     *
     * @param  string $procedureName
     * @param  array  $bindings
     * @param  string $cursorName
     * @return array
     */
    public function executeProcedureWithCursor($procedureName, array $bindings = [], $cursorName = ':cursor')
    {
        $stmt = $this->createStatementFromProcedure($procedureName, $bindings, $cursorName);

        $stmt = $this->addBindingsToStatement($stmt, $bindings);

        $cursor = null;
        $stmt->bindParam($cursorName, $cursor, PDO::PARAM_STMT);
        $stmt->execute();

        $statement = new Statement($cursor, $this->getPdo(), $this->getPdo()->getOptions());

It seems like you code against a specific sub-type and not the parent class PDO as the method getOptions() does only exist in the following sub-classes of PDO: Yajra\Pdo\Oci8. Maybe you want to instanceof check for one of these explicitly?

$this->getPdo() of type object<PDO> is not a sub-type of object<Yajra\Pdo\Oci8>. It seems like you assume a child class of the class PDO to be always present.

        $statement->execute();
        $results = $statement->fetchAll(PDO::FETCH_OBJ);
        $statement->closeCursor();

        return $results;
    }

    /**
     * Creates sql command to run a procedure with bindings.
     *
     * @param  string      $procedureName
     * @param  array       $bindings
     * @param  string|bool $cursor
     * @return string
     */
    public function createSqlFromProcedure($procedureName, array $bindings, $cursor = false)
    {
        $paramsString = implode(',', array_map(function ($param) {
            return ':' . $param;
        }, array_keys($bindings)));

        $prefix = count($bindings) ? ',' : '';
        $cursor = $cursor ? $prefix . $cursor : null;

        return sprintf('begin %s(%s%s); end;', $procedureName, $paramsString, $cursor);
    }

    /**
     * Creates statement from procedure.
     *
     * @param  string      $procedureName
     * @param  array       $bindings
     * @param  string|bool $cursorName
     * @return PDOStatement
     */
    public function createStatementFromProcedure($procedureName, array $bindings, $cursorName = false)
    {
        $sql = $this->createSqlFromProcedure($procedureName, $bindings, $cursorName);

        return $this->getPdo()->prepare($sql);
    }

    /**
     * Create statement from function.
     *
     * @param string $functionName
     * @param array  $bindings
     * @return PDOStatement
     */
    public function createStatementFromFunction($functionName, array $bindings)
    {
        $bindings = $bindings ? ':' . implode(', :', array_keys($bindings)) : '';

        $sql = sprintf('begin :result := %s(%s); end;', $functionName, $bindings);

        return $this->getPdo()->prepare($sql);
    }

    /**
     * Bind values to their parameters in the given statement.
     *
     * @param PDOStatement $statement
     * @param array        $bindings
     */
    public function bindValues($statement, $bindings)
    {
        foreach ($bindings as $key => $value) {
            $statement->bindParam($key, $bindings[$key]);
        }
    }

    /**
     * Get the default query grammar instance.
     *
     * @return \Illuminate\Database\Grammar|\Yajra\Oci8\Query\Grammars\OracleGrammar
     */
    protected function getDefaultQueryGrammar()
    {
        return $this->withTablePrefix(new QueryGrammar());
    }

    /**
     * Set the table prefix and return the grammar.
     *
     * @param \Illuminate\Database\Grammar|\Yajra\Oci8\Query\Grammars\OracleGrammar|\Yajra\Oci8\Schema\Grammars\OracleGrammar $grammar
     * @return \Illuminate\Database\Grammar
     */
    public function withTablePrefix(Grammar $grammar)
    {
        return $this->withSchemaPrefix(parent::withTablePrefix($grammar));
    }

    /**
     * Set the schema prefix and return the grammar.
     *
     * @param \Illuminate\Database\Grammar|\Yajra\Oci8\Query\Grammars\OracleGrammar|\Yajra\Oci8\Schema\Grammars\OracleGrammar $grammar
     * @return \Illuminate\Database\Grammar
     */
    public function withSchemaPrefix(Grammar $grammar)
    {
        $grammar->setSchemaPrefix($this->getConfigSchemaPrefix());

It seems like you code against a specific sub-type and not the parent class Illuminate\Database\Grammar as the method setSchemaPrefix() does only exist in the following sub-classes of Illuminate\Database\Grammar: Yajra\Oci8\Query\Grammars\OracleGrammar, Yajra\Oci8\Schema\Grammars\OracleGrammar. Maybe you want to instanceof check for one of these explicitly?

        return $grammar;
    }

    /**
     * Get config schema prefix.
     *
     * @return string
     */
    protected function getConfigSchemaPrefix()
    {
        return isset($this->config['prefix_schema']) ? $this->config['prefix_schema'] : '';
    }

    /**
     * Get the default schema grammar instance.
     *
     * @return \Illuminate\Database\Grammar|\Yajra\Oci8\Schema\Grammars\OracleGrammar
     */
    protected function getDefaultSchemaGrammar()
    {
        return $this->withTablePrefix(new SchemaGrammar());
    }

    /**
     * Get the default post processor instance.
     *
     * @return \Yajra\Oci8\Query\Processors\OracleProcessor
     */
    protected function getDefaultPostProcessor()
    {
        return new Processor();
    }

    /**
     * Add bindings to statement.
     *
     * @param  array        $bindings
     * @param  PDOStatement $stmt
     * @return PDOStatement
     */
    public function addBindingsToStatement(PDOStatement $stmt, array $bindings)
    {
        foreach ($bindings as $key => &$binding) {

            //defaults
            $value  = &$binding;
            $type   = PDO::PARAM_STR;
            $length = null;

            // extended array syntax for bindings
            if (is_array($binding)) {
                $value  = &$binding['value'];
                $type   = array_key_exists('type', $binding) ? $binding['type'] : PDO::PARAM_STR;
                $length = array_key_exists('length', $binding) ? $binding['length'] : null;
            }

            $stmt->bindParam(':' . $key, $value, $type, $length);
        }

        return $stmt;
    }

    /**
     * Determine if the given exception was caused by a lost connection.
     *
     * @param  \Exception  $e
     * @return bool
     */
    public function causedByLostConnection(Exception $e)
    {
        if (parent::causedByLostConnection($e)) {
            return true;
        }

        $lostConnectionErrors = [
            'ORA-03113',    //End-of-file on communication channel
            'ORA-03114',    //Not Connected to Oracle
            'ORA-03135',    //Connection lost contact
            'ORA-12170',    //Connect timeout occurred
            'ORA-12537',    //Connection closed
            'ORA-27146',    //Post/wait initialization failed
            'ORA-25408',    //Can not safely replay call
            'ORA-56600',    //Illegal Call
        ];

        $additionalErrors = null;

        $options = isset($this->config['options']) ? $this->config['options'] : [];
        if (array_key_exists(static::RECONNECT_ERRORS, $options)) {
            $additionalErrors = $this->config['options'][static::RECONNECT_ERRORS];
        }

        if (is_array($additionalErrors)) {
            $lostConnectionErrors = array_merge($lostConnectionErrors,
                $this->config['options'][static::RECONNECT_ERRORS]);
        }

        return Str::contains($e->getMessage(), $lostConnectionErrors);
    }
}