101 lines
2.6 KiB
JavaScript
101 lines
2.6 KiB
JavaScript
exports.initialize = function initializeSchema(schema, callback) {
|
|
schema.adapter = new Memory();
|
|
};
|
|
|
|
function Memory() {
|
|
this._models = {};
|
|
this.cache = {};
|
|
this.ids = {};
|
|
}
|
|
|
|
Memory.prototype.define = function defineModel(descr) {
|
|
var m = descr.model.modelName;
|
|
this._models[m] = descr;
|
|
this.cache[m] = {};
|
|
this.ids[m] = 1;
|
|
};
|
|
|
|
Memory.prototype.create = function create(model, data, callback) {
|
|
var id = this.ids[model]++;
|
|
data.id = id;
|
|
this.cache[model][id] = data;
|
|
callback(null, id);
|
|
};
|
|
|
|
Memory.prototype.save = function save(model, data, callback) {
|
|
this.cache[model][data.id] = data;
|
|
callback();
|
|
};
|
|
|
|
Memory.prototype.exists = function exists(model, id, callback) {
|
|
callback(null, this.cache[model].hasOwnProperty(id));
|
|
};
|
|
|
|
Memory.prototype.find = function find(model, id, callback) {
|
|
callback(null, this.cache[model][id]);
|
|
};
|
|
|
|
Memory.prototype.destroy = function destroy(model, id, callback) {
|
|
delete this.cache[model][id];
|
|
callback();
|
|
};
|
|
|
|
Memory.prototype.all = function all(model, filter, callback) {
|
|
var nodes = Object.keys(this.cache[model]).map(function (key) {
|
|
return this.cache[model][key];
|
|
}.bind(this));
|
|
process.nextTick(function () {
|
|
callback(null, filter && nodes ? nodes.filter(applyFilter(filter)) : nodes);
|
|
});
|
|
};
|
|
|
|
function applyFilter(filter) {
|
|
if (typeof filter === 'function') {
|
|
return filter;
|
|
}
|
|
var keys = Object.keys(filter);
|
|
return function (obj) {
|
|
var pass = true;
|
|
keys.forEach(function (key) {
|
|
if (!test(filter[key], obj[key])) {
|
|
pass = false;
|
|
}
|
|
});
|
|
return pass;
|
|
}
|
|
|
|
function test(example, value) {
|
|
if (typeof value === 'string' && example && example.constructor.name === 'RegExp') {
|
|
return value.match(example);
|
|
}
|
|
// not strict equality
|
|
return example == value;
|
|
}
|
|
}
|
|
|
|
Memory.prototype.destroyAll = function destroyAll(model, callback) {
|
|
Object.keys(this.cache[model]).forEach(function (id) {
|
|
delete this.cache[model][id];
|
|
}.bind(this));
|
|
this.cache[model] = {};
|
|
callback();
|
|
};
|
|
|
|
Memory.prototype.count = function count(model, callback) {
|
|
callback(null, Object.keys(this.cache[model]).length);
|
|
};
|
|
|
|
Memory.prototype.updateAttributes = function updateAttributes(model, id, data, cb) {
|
|
data.id = id;
|
|
var base = this.cache[model][id];
|
|
this.save(model, merge(base, data), cb);
|
|
};
|
|
|
|
function merge(base, update) {
|
|
Object.keys(update).forEach(function (key) {
|
|
base[key] = update[key];
|
|
});
|
|
return base;
|
|
}
|
|
|