persisted Json objects always access `filePath` of most recently created object

[tebemis]

Rporter: @tmoher

here’s the behavior:

source code:

var alpha = nutella.persist.getJsonObjectStore('alpha');
console.log(alpha.filePath());

var beta = nutella.persist.getJsonObjectStore('beta');
console.log(alpha.filePath());
console.log(beta.filePath());

var gamma = nutella.persist.getJsonObjectStore('gamma');
console.log(alpha.filePath());
console.log(beta.filePath());
console.log(gamma.filePath());

console output:

data/TEST-TEST-0/alpha.json
data/TEST-TEST-0/beta.json
data/TEST-TEST-0/beta.json
data/TEST-TEST-0/gamma.json
data/TEST-TEST-0/gamma.json
data/TEST-TEST-0/gamma.json

• same problem with load. it will always load from the most recent pathName.

• same problem in getJsonObjectCollection

my amateur analysis:

somehow alpha and beta are losing their pathNames.
i’m a js newbie w.r.t. OOP, but it seems like the filePath
is shared among all instances of persisted objects.

if i make this change in json_file_persisted_object.js:

    Object.prototype.save = function(path) {
        fs.writeFileSync(path, JSON.stringify(this));
    };

and add the path explicitly in the save call, e.g.:

alpha.save(‘data/…/alpha.json’)

then everything works.

so, i have a workaround for now.

if you can’t fine a quick answer, could you replace
the save function in the nutella lib with:

    Object.prototype.save = function(path) {
        if (arguments.length == 1) fs.writeFileSync(path, JSON.stringify(this));
        else fs.writeFileSync(this.filePath(), JSON.stringify(this));
        
    };

so that my code will be compatible with any fixes?