README.md

Presto Query Builder

This package provides a set of classes and methods that is able to programmatically build presto queries.

• Installation
• Usage
• Testing
• Contributing
• License

Installation

$ composer require moitran/package-presto-query-builder

Usage

Some examples:

1.     $query = new MoiTran\PrestoQueryBuilder\Query();
       $queryStr = $query->select('*')
          ->from('table1')
          ->whereAnd('col1', 'IS', NULL)
          ->whereAnd('col2', '=', 'value2')
          ->whereOr('col3', 'LIKE', '%test%')
          ->orderBy('col1', 'DESC')
          ->orderBy('col2', 'ASC')
          ->limit(10)
          ->getQueryStr();

   Output:

      SELECT * FROM (table1) WHERE col1 IS NULL AND col2 = 'value2' OR col3 LIKE '%test%' ORDER BY col1 DESC, col2 ASC LIMIT 10
   

2.     $whereAndGroup = new MoiTran\PrestoQueryBuilder\WhereGroup();
       $whereAndGroup->whereAnd('col4', '!=', 'value4');
       $whereAndGroup->whereOr('col5', 'NOT LIKE', 'value5%');
   
       $whereOrGroup = new MoiTran\PrestoQueryBuilder\WhereGroup();
       $whereOrGroup->whereAnd('col6', '=', 'value6');
       $whereOrGroup->whereOr('col7', 'IN', ['value7', 'value8']);
   
       $query = new MoiTran\PrestoQueryBuilder\Query();
       $queryStr = $query->select([
           'col1',
           'col2' => 'colalias2',
           'col3' => 'colalias3'
       ])
           ->from('table1')
           ->whereAnd('col1', 'IS', NULL)
           ->whereAnd('col2', '=', 'value2')
           ->whereOr('col3', 'LIKE', '%test%')
           ->whereAndGroup($whereAndGroup)
           ->whereOrGroup($whereOrGroup)
           ->groupBy(['col1', 'col2', 'col3'])
           ->orderBy('col1', 'DESC')
           ->orderBy('col2', 'ASC')
           ->limit(10)
           ->getQueryStr();

   Output:

      SELECT col1,
             col2 AS colalias2,
             col3 AS colalias3
      FROM (table1)
      WHERE col1 IS NULL
        AND col2 = 'value2'
        OR col3 LIKE '%test%'
        AND (col4 != 'value4'
             OR col5 NOT LIKE 'value5%')
        OR (col6 = 'value6'
            OR col7 IN ('value7',
                        'value8'))
      GROUP BY col1,
               col2,
               col3
      ORDER BY col1 DESC,
               col2 ASC
      LIMIT 10

3.     $query = new MoiTran\PrestoQueryBuilder\Query();
       $queryStr = $query->select([
           'a.col1' => 'acol1',
           'a.col2' => 'acol2',
           'b.col1' => 'bcol1',
           'b.col2' => 'bcol2',
       ])
           ->from('table1', 'a')
           ->leftJoin('table2', 'b')
           ->on('a.id', '=', 'b.a_id')
           ->whereAnd('a.col1', '=', 'value1')
           ->limit(10)
           ->getQueryStr();

   Output:

      SELECT a.col1 AS acol1,
             a.col2 AS acol2,
             b.col1 AS bcol1,
             b.col2 AS bcol2
      FROM (table1) AS a
      LEFT JOIN (table2) AS b ON a.id = b.a_id
      WHERE a.col1 = 'value1'
      LIMIT 10

Testing

$ vendor/bin/phpunit --coverage-html=cov/ tests/

Contributing

• Moi Tran

License

This package is under MIT License