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VILLASweb/src/common/array-store.js
Sonja Happ f468b44557 Refactoring of js code base:
- Grouping js files based on the elements of the data model instead of parent js class
- All js files providing functionality for one element of the data model are now in one folder; this makes is easier to implement changes for one element in all affected files/ classes
- js files which are common to multiple elements are in the common folder
- The new structure is more in alignment with the new Go backend code base structure
- This commit does not contain any changes in functionality of the frontend
2019-08-20 14:46:33 +02:00

131 lines
3.6 KiB
JavaScript

/**
* File: array-store.js
* Author: Markus Grigull <mgrigull@eonerc.rwth-aachen.de>
* Date: 03.03.2017
*
* This file is part of VILLASweb.
*
* VILLASweb is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* VILLASweb is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with VILLASweb. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
import { ReduceStore } from 'flux/utils';
import AppDispatcher from './app-dispatcher';
class ArrayStore extends ReduceStore {
constructor(type, dataManager) {
super(AppDispatcher);
this.type = type;
this.dataManager = dataManager;
}
getInitialState() {
return [];
}
updateElements(state, newElements) {
// search for existing element to update
state.forEach((element, index, array) => {
newElements = newElements.filter((updateElement, newIndex) => {
if (element.id === updateElement.id) {
// update each property
for (var key in updateElement) {
if (updateElement.hasOwnProperty(key)) {
array[index][key] = updateElement[key];
}
}
// remove updated element from update list
return false;
}
return true;
});
});
// all elements still in the list will just be added
state = state.concat(newElements);
// announce change to listeners
this.__emitChange();
return state;
}
reduce(state, action) {
switch (action.type) {
case this.type + '/start-load':
if (Array.isArray(action.data)) {
action.data.forEach((id) => {
this.dataManager.load(id, action.token);
});
} else {
this.dataManager.load(action.data, action.token);
}
return state;
case this.type + '/loaded':
if (Array.isArray(action.data)) {
return this.updateElements(state, action.data);
} else {
return this.updateElements(state, [action.data]);
}
case this.type + '/load-error':
// TODO: Add error message
return state;
case this.type + '/start-add':
this.dataManager.add(action.data, action.token);
return state;
case this.type + '/added':
return this.updateElements(state, [action.data]);
case this.type + '/add-error':
// TODO: Add error message
return state;
case this.type + '/start-remove':
this.dataManager.remove(action.data, action.token);
return state;
case this.type + '/removed':
return state.filter((item) => {
return (item !== action.original);
});
case this.type + '/remove-error':
// TODO: Add error message
return state;
case this.type + '/start-edit':
this.dataManager.update(action.data, action.token);
return state;
case this.type + '/edited':
return this.updateElements(state, [action.data]);
case this.type + '/edit-error':
// TODO: Add error message
return state;
default:
return state;
}
}
}
export default ArrayStore;