| export default Model |
| |
| /** |
| * Creates a new Model instance and hooks up the storage. |
| * |
| * @constructor |
| * @param {object} storage A reference to the client side storage class |
| */ |
| function Model(storage) { |
| this.storage = storage |
| } |
| |
| /** |
| * Creates a new todo model |
| * |
| * @param {string} [title] The title of the task |
| * @param {function} [callback] The callback to fire after the model is created |
| */ |
| Model.prototype.create = function(title, callback) { |
| title = title || '' |
| callback = callback || function() { |
| } |
| |
| var newItem = { |
| title: title.trim(), |
| completed: false |
| } |
| |
| this.storage.save(newItem, callback) |
| } |
| |
| /** |
| * Finds and returns a model in storage. If no query is given it'll simply |
| * return everything. If you pass in a string or number it'll look that up as |
| * the ID of the model to find. Lastly, you can pass it an object to match against. |
| * |
| * @param {string|number|object} [query] A query to match models against |
| * @param {function} [callback] The callback to fire after the model is found |
| * |
| * @example |
| * model.read(1, func); // Will find the model with an ID of 1 |
| * model.read('1'); // Same as above |
| * //Below will find a model with foo equalling bar and hello equalling world. |
| * model.read({ foo: 'bar', hello: 'world' }); |
| */ |
| Model.prototype.read = function(query, callback) { |
| var queryType = typeof query |
| callback = callback || function() { |
| } |
| |
| if (queryType === 'function') { |
| callback = query |
| return this.storage.findAll(callback) |
| } else if (queryType === 'string' || queryType === 'number') { |
| query = parseInt(query, 10) |
| this.storage.find({id: query}, callback) |
| } else { |
| this.storage.find(query, callback) |
| } |
| return undefined |
| } |
| |
| /** |
| * Updates a model by giving it an ID, data to update, and a callback to fire when |
| * the update is complete. |
| * |
| * @param {number} id The id of the model to update |
| * @param {object} data The properties to update and their new value |
| * @param {function} callback The callback to fire when the update is complete. |
| */ |
| Model.prototype.update = function(id, data, callback) { |
| this.storage.save(data, callback, id) |
| } |
| |
| /** |
| * Removes a model from storage |
| * |
| * @param {number} id The ID of the model to remove |
| * @param {function} callback The callback to fire when the removal is complete. |
| */ |
| Model.prototype.remove = function(id, callback) { |
| this.storage.remove(id, callback) |
| } |
| |
| /** |
| * WARNING: Will remove ALL data from storage. |
| * |
| * @param {function} callback The callback to fire when the storage is wiped. |
| */ |
| Model.prototype.removeAll = function(callback) { |
| this.storage.drop(callback) |
| } |
| |
| /** |
| * Returns a count of all todos |
| */ |
| Model.prototype.getCount = function(callback) { |
| var todos = { |
| active: 0, |
| completed: 0, |
| total: 0 |
| } |
| |
| this.storage.findAll(function(data) { |
| data.forEach(function(todo) { |
| if (todo.completed) { |
| todos.completed++ |
| } else { |
| todos.active++ |
| } |
| |
| todos.total++ |
| }) |
| callback(todos) |
| }) |
| } |