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| var CREATE_KEY, CrudConfig, DELETED, DELETING, FAILED, LOADED, LOADING, SAVING, _, extendConfig, flux, idCounter, isNew, makeSimpleStore;
_ = require('underscore');
flux = require('flux-react');
LOADING = 'loading';
LOADED = 'loaded';
FAILED = 'failed';
SAVING = 'saving';
DELETING = 'deleting';
DELETED = 'deleted';
idCounter = 0;
CREATE_KEY = function() {
return "_CREATING_" + (idCounter++);
};
isNew = function(id) {
return /_CREATING_/.test(id);
};
CrudConfig = function() {
return {
_asyncStatus: {},
_local: {},
_changed: {},
_errors: {},
_reload: {},
reset: function() {
this._asyncStatus = {};
this._local = {};
this._changed = {};
this._errors = {};
this._reload = {};
if (typeof this._reset === "function") {
this._reset();
}
return this.emitChange();
},
FAILED: function(status, msg, id) {
this._asyncStatus[id] = FAILED;
this._errors[id] = msg;
if (typeof this._failed === "function") {
this._failed({
status: status,
msg: msg
}, id);
}
Eif (status !== 0) {
delete this._local[id];
return this.emitChange();
}
},
load: function(id) {
if (this._asyncStatus[id] === LOADED && this._HACK_DO_NOT_RELOAD) {
return;
}
this._reload[id] = false;
this._asyncStatus[id] = LOADING;
return this.emitChange();
},
loaded: function(obj, id) {
var i, len, ref, ref1, ref2, ref3, step;
this._asyncStatus[id] = LOADED;
Iif (this._local[id] && obj.HACK_LOCAL_STEP_COMPLETION && this._local[id].steps) {
ref = this._local[id].steps;
for (i = 0, len = ref.length; i < len; i++) {
step = ref[i];
if (step.is_completed && (((ref1 = step.content) != null ? (ref2 = ref1.questions) != null ? (ref3 = ref2[0]) != null ? ref3.answers[0] : void 0 : void 0 : void 0) != null) && !step.correct_answer_id) {
step.correct_answer_id = step.content.questions[0].answers[0].id;
step.feedback_html = 'Some <em>FAKE</em> feedback';
}
}
}
Eif (obj) {
this._local[id] = (typeof this._loaded === "function" ? this._loaded(obj, id) : void 0) || obj;
}
return this.emitChange();
},
save: function(id, obj) {
this._asyncStatus[id] = SAVING;
return this.emitChange();
},
saved: function(result, id) {
var obj;
this._asyncStatus[id] = LOADED;
obj = typeof this._saved === "function" ? this._saved(result, id) : void 0;
if (obj) {
result = obj;
}
Eif (result) {
this._local[id] = result;
this._local[result.id] = result;
delete this._changed[result.id];
} else {
console.warn('API WARN: Server did not return JSON after saving. Patching locally');
this._local[id] = _.extend(this._local[id], this._changed[id]);
}
delete this._changed[id];
delete this._errors[id];
return this.emitChange();
},
create: function(localId, attributes) {
Iif (attributes == null) {
attributes = {};
}
Iif (!isNew(localId)) {
throw new Error('BUG: MUST provide a local id');
}
this._local[localId] = {};
this._changed[localId] = attributes;
return this._asyncStatus[localId] = LOADED;
},
created: function(result, localId) {
this._local[localId] = result;
this._local[result.id] = result;
this._asyncStatus[localId] = LOADED;
this._asyncStatus[result.id] = LOADED;
return this.emitChange();
},
_change: function(id, obj) {
var base;
if ((base = this._changed)[id] == null) {
base[id] = {};
}
_.extend(this._changed[id], obj);
return this.emitChange();
},
_save: function(id) {
return this._asyncStatus[id] = SAVING;
},
"delete": function(id) {
return this._asyncStatus[id] = DELETING;
},
deleted: function(result, id) {
this._asyncStatus[id] = DELETED;
delete this._local[id];
return this.emitChange();
},
clearChanged: function(id) {
return delete this._changed[id];
},
HACK_DO_NOT_RELOAD: function(bool) {
return this._HACK_DO_NOT_RELOAD = bool;
},
_get: function(id) {
var val;
val = this._local[id];
if (!(val || this._asyncStatus[id] === SAVING)) {
return null;
}
if (_.isArray(val)) {
return val;
} else {
return _.extend({}, val, this._changed[id]);
}
},
exports: {
isUnknown: function(id) {
return !this._asyncStatus[id];
},
isLoading: function(id) {
return this._asyncStatus[id] === LOADING;
},
isLoaded: function(id) {
return this._asyncStatus[id] === LOADED;
},
isDeleting: function(id) {
return this._asyncStatus[id] === DELETING;
},
isSaving: function(id) {
return this._asyncStatus[id] === SAVING;
},
isFailed: function(id) {
return this._asyncStatus[id] === FAILED;
},
getAsyncStatus: function(id) {
return this._asyncStatus[id];
},
get: function(id) {
return this._get(id);
},
isChanged: function(id) {
return !_.isEmpty(this._changed[id]);
},
getChanged: function(id) {
return this._changed[id] || {};
},
freshLocalId: function() {
return CREATE_KEY();
},
isNew: function(id) {
return isNew(id);
},
reload: function(id) {
return this._reload[id];
}
}
};
};
makeSimpleStore = function(storeConfig) {
var actions, actionsConfig, store;
actionsConfig = _.omit(storeConfig, function(value, key) {
return typeof value !== 'function' || key === 'exports';
});
actionsConfig = _.keys(actionsConfig);
actions = flux.createActions(actionsConfig);
storeConfig.actions = _.values(actions);
store = flux.createStore(storeConfig);
return {
actions: actions,
store: store
};
};
extendConfig = function(newConfig, origConfig) {
if (newConfig.exports == null) {
newConfig.exports = {};
}
_.defaults(newConfig, origConfig);
_.defaults(newConfig.exports, origConfig.exports);
return newConfig;
};
module.exports = {
CrudConfig: CrudConfig,
makeSimpleStore: makeSimpleStore,
extendConfig: extendConfig
};
|