Have I any chance to serialize meta (any format, so I can store it in DB)?
var obj1 = {};
var obj2 = {};
obj1.link = obj2;
obj2.link = obj1;
var meta = [obj1, obj2];
As I understand the problem is that JSON serialize object`s links to objects.
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3 Answers
Yes. You'll need to give your objects some kind of ID and use that as a reference.
var obj1 = {id: "obj1"};
var obj2 = {id: "obj2"};
obj1.link = "obj2";
obj2.link = "obj1";
var meta = [obj1, obj2];
Comments
One approach is to use an object as the outermost container, using the keys of the object as the ids:
var objs = {
obj1: { link: "obj2" },
obj2: { link: "obj1" }
}
Then you can follow the links with just a property lookup:
var o1 = objs["obj1"];
var o2 = objs[o1.link];
And this converts to JSON without needing any conversions
Comments
JSON serializing such links can easily be avoided by using the replacer function:
var a = {}, b = {};
var d = {
a: a,
b: b,
c: "c"
};
JSON.stringify(d, function(key, value) {
if (value === a || value === b) {
return;
}
return value;
});
// returns '{"c":"c"}'