handle multiple SpdrParam instances in query builder

[0xJohnnyboy]

Version

2.x

Issue

There's no handling of multiple declarations of a param on the same property

Suggestion

const p1 = new SpdrSearch('lastname', ['Belmondo']);
const p2 = new SpdrSearch('lastname', ['Delon']);

const qb = new SpdrQueryBuilder([p1,p2]);

Several solutions to this:

• This could throw an exception
• Or glue SpdrParam instances into a single SpdrParam with multiple values when possible. Here it could transform p1 and p2 into const p3 = new SpdrSearch('lastname', ['Belmondo', 'Delon']) , for example.
• Keep only the last instance, that may be the best solution as it would be super handy to use.
• All solutions, depending on an optional parameter, with the exception by default.

[0xJohnnyboy]

The behavior has slightly changed since v2.x but lists of params have been implemented in v3, a feature of this type should be available soon

[0xJohnnyboy]

12 adds automatic replacement for sort params and pagination params.

The rest is still manual at this point.