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function subjectsReducer(state = initialSubjectsState(), action = {}){ | |
switch(action.type){ | |
case LOAD_SUBJECTS_RESULTS: | |
return Object.assign({}, state, { list: subjectsToHash(action.subjects) }); | |
case EDIT_SUBJECT: | |
var editingSubject = state.list[action._id], | |
newSubjectParent, | |
eligibleParents = flattenedSubjects(state.list).filter(s => s._id !== action._id && (!new RegExp(`,${action._id},`).test(s.path))); | |
if (editingSubject.path == null){ | |
newSubjectParent = null; | |
} else { | |
let hierarchy = editingSubject.path.split(','); | |
newSubjectParent = hierarchy[hierarchy.length - 2]; | |
} | |
return Object.assign({}, state, { editSubjectsPacket: Object.assign({}, state.editSubjectsPacket, { newSubjectName: editingSubject.name, newSubjectParent, editingSubject, eligibleParents }) }); | |
case UPDATE_SUBJECT_RESULTS: | |
let changedSubjects = subjectsToHash(action.affectedSubjects); | |
return Object.assign({}, state, { list: Object.assign({}, state.list, changedSubjects) }); | |
} | |
return state; | |
} | |
function subjectsToHash(subjects){ | |
let hash = {}; | |
subjects.forEach(s => hash[s._id] = s); | |
return hash; | |
} | |
function flattenedSubjects(subjects){ | |
return Object.keys(subjects).map(k => subjects[k]); | |
} |
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