MDX Query builder

Provides convenient query builder for MDX. Supports several features of Mondrian MDX specification.

Usage

Implement ConnectionInterface and pass it into Query.

You can use Olap4Php and pass MDX-string build by Query class into XMLAStatement.

An example of query can look like this:

$query = new Query($connection);

$dateRange = new DateRange(
    Carbon::parse('2019-01-01'),
    Carbon::parse('2019-01-31'),
    Period::DAY
);

$mdx = $query->select([
        '[Measures].[Retail Total]',
        '[Measures].[Profit]',
    ])
    ->by($dateRange)
    ->from('Sales')
    ->toMDX();

Resulting MDX is:

SELECT 

{[Measures].[Retail Total], [Measures].[Profit]} ON COLUMNS,

{
    {[Time].[2019].[Q1].[1].[W1].[D1] : [Time].[2019].[Q1].[1].[W5].[D31]}
} ON ROWS 

FROM [Sales]

TODO: Abstract Query class from Mondrian dialect