Odata json query builder transformation. Recursion? - recursion

Question

I'm currently building a query builder for Odata.
I took inspiration from this project :
http://mfauveau.github.io/angular-query-builder/.
I do have now a json interpretation of the query.
But the framework Im using to work with odata has a different format.
My problem is that the query could be infinitly nested.
I need this kind of output :
{ or: [
age: { ">": 40 },
and: [
{ lastName: { startsWith: 'A'}},
{ hireDate: { '<': new Date(2010, 0, 1) }}
]
]
}
And I have this input :
{
"rules": [
{
"condition": "=",
"field": "ID",
"data": "1",
"$$hashKey": "object:244"
},
{
"condition": "=",
"field": "ID",
"data": "1",
"$$hashKey": "object:310"
},
{
"group": {
"operator": "AND",
"rules": [
{
"condition": "=",
"field": "ID",
"data": "1",
"$$hashKey": "object:392"
},
{
"condition": "=",
"field": "ID",
"data": "1",
"$$hashKey": "object:456"
}
]
},
"$$hashKey": "object:363"
}
],
"operator": "OR"
}
I 'd need some advice to solve this problem.
So if you have a link or some ideas that could help me.
I would be grateful.

Answer 1

function convertQueryBuilderToBreeze(filtre) {
var jsonObject = {};
if (filtre.rules && filtre.operator) {
jsonObject[filtre.operator] = filtre.rules.map(function (rule) {
if (rule.condition) {
var condition = {};
var obj = {};
obj[rule.condition] = rule.data;
condition[rule.field] = obj;
return condition;
} else if (rule.group) {
return convertQueryBuilderToBreeze(rule.group);
}
});
}
return jsonObject;
}