This repository has been archived by the owner on Feb 1, 2023. It is now read-only.
forked from benpickles/js-model
-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
63f4a3a
commit 8854110
Showing
3 changed files
with
305 additions
and
1 deletion.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,290 @@ | ||
/* js-model JavaScript library, version 0.6.1 | ||
* (c) 2010 Ben Pickles | ||
* | ||
* Released under MIT license. | ||
*/ | ||
var Model = function(name, methods) { | ||
var model = function(attributes) { | ||
this._name = name; | ||
this.attributes = attributes || {}; | ||
this.changes = {}; | ||
this.collection = collection; | ||
this.errors = []; | ||
this.trigger('initialize'); | ||
}; | ||
|
||
var collection; | ||
if (methods && methods.collection) { | ||
collection = methods.collection; | ||
delete methods.collection; | ||
} else { | ||
collection = Model.Collection(); | ||
}; | ||
|
||
model = $.extend(model, collection); | ||
|
||
model.prototype = $.extend({ | ||
attr: function(name, value) { | ||
if (arguments.length == 2) { | ||
if (_.isEqual(this.attributes[name], value)) { | ||
delete this.changes[name]; | ||
} else { | ||
this.changes[name] = value; | ||
}; | ||
return this; | ||
} else if (typeof name == "object") { | ||
for (var key in name) { | ||
this.attr(key, name[key]); | ||
}; | ||
return this; | ||
} else { | ||
return (name in this.changes) ? | ||
this.changes[name] : | ||
this.attributes[name]; | ||
}; | ||
}, | ||
|
||
callPersistMethod: function(method, callback) { | ||
var self = this; | ||
|
||
var manageCollection = function() { | ||
if (!self.collection) return; | ||
if (method == "create") { | ||
self.collection.add(self); | ||
} else if (method == "destroy") { | ||
self.collection.remove(self.id()); | ||
}; | ||
}; | ||
|
||
var wrappedCallback = function(success) { | ||
if (success) { | ||
manageCollection(); | ||
|
||
self.trigger(method); | ||
}; | ||
|
||
var value; | ||
|
||
if (callback) value = callback.apply(self, arguments); | ||
|
||
return value; | ||
}; | ||
|
||
if (this.persistence) { | ||
this.persistence[method](this, wrappedCallback); | ||
} else { | ||
wrappedCallback.call(this, true); | ||
}; | ||
}, | ||
|
||
destroy: function(callback) { | ||
this.callPersistMethod("destroy", callback); | ||
return this; | ||
}, | ||
|
||
id: function() { | ||
return this.attributes.id || null; | ||
}, | ||
|
||
merge: function(attributes) { | ||
$.extend(this.attributes, attributes); | ||
return this; | ||
}, | ||
|
||
newRecord: function() { | ||
return this.id() == null; | ||
}, | ||
|
||
reset: function() { | ||
this.changes = {}; | ||
return this; | ||
}, | ||
|
||
save: function(callback) { | ||
if (!this.valid()) return false; | ||
|
||
this.merge(this.changes).reset(); | ||
|
||
var method = this.newRecord() ? "create" : "update"; | ||
this.callPersistMethod(method, callback); | ||
|
||
return true; | ||
}, | ||
|
||
toParam: function() { | ||
var params = {}; | ||
for (var attr in this.attributes) { | ||
var value = this.attributes[attr]; | ||
if (attr != 'id' && value != null) { | ||
params[this._name + '[' + attr + ']'] = value; | ||
}; | ||
}; | ||
return params; | ||
}, | ||
|
||
trigger: function(name) { | ||
$(document).trigger([name, this._name].join('.'), [this]); | ||
return this; | ||
}, | ||
|
||
update: function(attributes) { | ||
this.merge(attributes).trigger("update"); | ||
return this; | ||
}, | ||
|
||
valid: function() { | ||
this.errors = []; | ||
this.validate(); | ||
return this.errors.length == 0; | ||
}, | ||
|
||
validate: function() { | ||
return this; | ||
} | ||
}, methods); | ||
|
||
return model; | ||
}; | ||
Model.Collection = function(methods) { | ||
var model_collection = function(collection) { | ||
this.collection = collection || []; | ||
}; | ||
|
||
var chain = function(collection) { | ||
return new model_collection(collection); | ||
}; | ||
|
||
model_collection.prototype = $.extend({ | ||
add: function() { | ||
for (var i = 0; i < arguments.length; i++) { | ||
var model = arguments[i]; | ||
var existing_elem = this.detect(function() { | ||
return this.id() != null && this.id() == model.id(); | ||
}); | ||
|
||
if (!existing_elem) { | ||
this.collection.push(arguments[i]); | ||
} | ||
}; | ||
return this; | ||
}, | ||
|
||
all: function() { | ||
return this.collection; | ||
}, | ||
|
||
detect: function(func) { | ||
return _.detect(this.collection, function(model, i) { | ||
return func.call(model, i); | ||
}) || null; | ||
}, | ||
|
||
each: function(func) { | ||
$.each(this.collection, function(i) { | ||
func.call(this, i); | ||
}); | ||
return this; | ||
}, | ||
|
||
find: function(id) { | ||
return this.detect(function() { | ||
return this.id() == id; | ||
}); | ||
}, | ||
|
||
first: function() { | ||
return this.collection[0] || null; | ||
}, | ||
|
||
last: function() { | ||
return this.collection[this.collection.length - 1] || null; | ||
}, | ||
|
||
remove: function(id) { | ||
var ids = _.invoke(this.collection, 'id'); | ||
var index = _.indexOf(ids, id); | ||
if (index > -1) { | ||
this.collection.splice(index, 1); | ||
return true; | ||
} else { | ||
return false; | ||
}; | ||
}, | ||
|
||
select: function(func) { | ||
var selected = _.select(this.collection, function(model, i) { | ||
return func.call(model, i); | ||
}); | ||
return chain(selected); | ||
}, | ||
|
||
sort: function(func) { | ||
var sorted = _.sortBy(this.collection, function(model, i) { | ||
return func.call(model, i); | ||
}); | ||
return chain(sorted); | ||
} | ||
}, methods); | ||
|
||
return new model_collection(); | ||
}; | ||
Model.RestPersistence = function(resource, methods) { | ||
var model_resource = function() { | ||
this.resource = resource; | ||
}; | ||
|
||
model_resource.prototype = $.extend({ | ||
create: function(model, callback) { | ||
var wrappedCallback = function(success, data, xhr) { | ||
this.merge(data); | ||
|
||
if (callback) callback.apply(this, arguments); | ||
}; | ||
|
||
return this.xhr('POST', this.create_path(model), model, wrappedCallback); | ||
}, | ||
|
||
create_path: function(model) { | ||
return this.resource; | ||
}, | ||
|
||
destroy: function(model, callback) { | ||
return this.xhr('DELETE', this.destroy_path(model), null, callback); | ||
}, | ||
|
||
destroy_path: function(model) { | ||
return this.update_path(model); | ||
}, | ||
|
||
update: function(model, callback) { | ||
var wrappedCallback = function(success, data, xhr) { | ||
this.merge(data); | ||
|
||
if (callback) callback.apply(this, arguments); | ||
}; | ||
|
||
return this.xhr('PUT', this.update_path(model), model, wrappedCallback); | ||
}, | ||
|
||
update_path: function(model) { | ||
return [this.resource, model.id()].join('/'); | ||
}, | ||
|
||
xhr: function(method, url, model, callback) { | ||
return $.ajax({ | ||
type: method, | ||
url: url, | ||
dataType: "json", | ||
data: model ? model.toParam() : null, | ||
failure: function(data, status, xhr) { | ||
if (callback) callback.call(model, false, data, xhr); | ||
}, | ||
success: function(data, status, xhr) { | ||
if (callback) callback.call(model, true, data, xhr); | ||
} | ||
}); | ||
} | ||
}, methods); | ||
|
||
return new model_resource(); | ||
}; |
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1 +1 @@ | ||
VERSION: 0.6.0 | ||
VERSION: 0.6.1 |