<?php
    /**
    * An Example usage of QueryBuilder
    */
    use Wjurry\DBTools\QueryBuilder;
    use Wjurry\DBTools\Enums\QueryOperatorsEnums;
    
    $queryBuilder = new QueryBuilder(
        'suppliers',
        ['supplier_id', 'supplier_name'],
        [
            [
                'CONDITIONS' => [
                    'supplier_id' => [QueryOperatorsEnum::OP_LESS_THAN_EQUAL => 500],
                    'is_deleted' => [QueryOperatorsEnum::OP_EQUALS => false]
                ]
            ],
            [
                'UNION' => [
                    'type' => 'ALL',
                    'table' => 'companies',
                    'columns' => ['company_id', 'company_name'],
                    'alias' => 'c'
                ]
            ],
            [
                'JOIN' => [
                    'table' => 'stores',
                    'alias' => 's2',
                    'side' => 'LEFT',
                    'conditions' => [
                         's2.supplier_id' => [QueryOperatorsEnum::OP_EQUALS => 'c.company_id', 'process' => false], // 'process = false' (optional): returns the condition as is without binding
                         's2.is_deleted' => [QueryOperatorsEnum::OP_EQUALS => false]
                    ]
                ]
            ]
        ],
        [
            'column' => 'supplier_id',
            'direction' => 'DESC'
        ],
        [
            'limit' => 100,
            'offset' => 0
        ]
    );
    
    $query = $queryBuilder->getQuery();
    // SELECT s8.supplier_id,s8.supplier_name FROM suppliers AS s8
    // WHERE s8.supplier_id <= :YGV0 AND s8.is_deleted = :TCP0
    // UNION ALL SELECT c.supplier_id,c.supplier_name FROM companies AS c
    // LEFT JOIN stores AS s2 ON s2.supplier_id = c.company_id AND s2.is_deleted = :QRI0
    // ORDER BY s8.supplier_id DESC LIMIT 100;
    
    $binds = $queryBuilder->getbinds();
    // array (
    //   'YGV0' => 500,
    //   'TCP0' => false,
    //   'QRI0' => false,
    // )

   <?php
   /**
   * An Example usage of QueryBuilder
   */
   use Wjurry\DBTools\QueryBuilder;
   use Wjurry\DBTools\Enums\QueryOperatorsEnums;
   
   $queryBuilder = new RecursiveQueryBuilder(
       'categories',
       ['category_id', 'category_parent_id', 'category_order'],
       'category_recursive_query',
       [
           [
               'CONDITIONS' => [
                   'category_id' => [QueryOperatorsEnum::OP_EQUALS => '100'],
                   'is_deleted' => [QueryOperatorsEnum::OP_EQUALS => false]
               ]
           ],
           [
               'UNION' => [
                   'type' => 'ALL',
                   'table' => 'categories',
                   'alias' => 'c0',
                   'columnsAlias' => 'c' // refers to JOIN statement's alias
               ]
           ],
           [
               'JOIN' => [
                   'table' => 'categories',
                   'alias' => 'c',
                   'conditions' => [
                       'c.category_id' => [QueryOperatorsEnum::OP_EQUALS => 'c0.category_parent_id', 'process' => false], // c0 here refers to UNION statement's alias
                       'c.is_deleted' => [QueryOperatorsEnum::OP_EQUALS => false]
                   ]
               ]
           ]
       ],
       [
           'column' => 'category_order',
           'direction' => 'ASC'
       ],
       [
           'limit' => 10,
           'offset' => 0
       ]
   );
   
   $query = $queryBuilder->getQuery();
   // WITH RECURSIVE category_recursive_query (category_id,category_parent_id,category_order)
   // AS (SELECT c9.category_id,c9.category_parent_id,c9.category_order FROM categories AS c9
   // WHERE c9.category_id = :RVF0 AND c9.is_deleted = :NKX0
   // UNION ALL SELECT c.category_id,c.category_parent_id,c.category_order FROM categories AS c0
   // JOIN categories AS c ON c.category_id = c0.category_parent_id AND c.is_deleted = :CLK0)
   // SELECT * FROM category_recursive_query ORDER BY category_order ASC LIMIT 10;
   
   $binds = $queryBuilder->getbinds();
   // array (
   //   'RVF0' => '100',
   //   'NKX0' => false,
   //   'CLK0' => false,
   // )