simple-odata-server/lib/prune.js

OData server with adapter for mongodb and nedb

function prune(doc, model, type) {

    if (doc instanceof Array) {
        for (var i in doc) {
            prune(doc[i], model, type);
        }
        return;
    }


    for (var prop in doc) {
        if (!prop || doc[prop] === undefined)
            continue;

        var propDef = type[prop];

        if (!propDef) {
            delete doc[prop];
            continue;
        }

        if (propDef.type.indexOf("Collection") === 0) {
            if (propDef.type.indexOf("Collection(Edm") === 0) {
                continue;
            }
            var complexTypeName = propDef.type.replace("Collection(" + model.namespace + ".", "");
            complexTypeName = complexTypeName.substring(0, complexTypeName.length - 1);
            var complexType = model.complexTypes[complexTypeName];
            if (!complexType)
                throw new Error("Complex type " + complexTypeName + " was not found.");

            for (var i in doc[prop]) {
                prune(doc[prop][i], model, complexType);
            }
            continue;
        }

        if (propDef.type.indexOf("Edm") !== 0) {
            var complexTypeName = propDef.type.replace(model.namespace + ".", "");
            var complexType = model.complexTypes[complexTypeName];
            if (!complexType)
                throw new Error("Complex type " + complexTypeName + " was not found.");
            prune(doc[prop], model, complexType);
        }
    }
}

module.exports = function(model, collection, docs) {

    var entitySet = model.entitySets[collection];
    var entityType = model.entityTypes[entitySet.entityType.replace(model.namespace + ".", "")];

    for (var i in docs) {
        prune(docs, model, entityType);
    }
};