// Returns simulations favorited by and comments from the user id passed in the url
func InteractionsHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
userKeyName := vars["userID"]
ctx := appengine.NewContext(r)
var simulations []models.SimulationData
var comments []models.CommentData
// Check to see if the page user is the same as the logged in user
userIsOwner := utils.IsOwner(userKeyName, ctx)
// Only get favorited and commented information if it's the proper user
// Don't display interaction data to any user except for the user who owns it
if userIsOwner {
// Get 50 of the most recent ratings made by the logged in user
var ratingKeys []*datastore.Key
var ratingObjs []models.Rating
q := datastore.NewQuery("Rating").KeysOnly().Filter("AuthorKeyName =", userKeyName).Order("-CreationDate").Limit(50)
ratingKeys, err := q.GetAll(ctx, ratingObjs)
// Get the parent keys of the ratings made (these are the keys of the simulations the ratings were for)
var simulationRateKeys []*datastore.Key
for _, key := range ratingKeys {
simulationRateKeys = append(simulationRateKeys, key.Parent())
}
// Get all of the simulation objects from the simulation keys
simulationRateObjs := make([]models.Simulation, len(simulationRateKeys))
err = datastore.GetMulti(ctx, simulationRateKeys, simulationRateObjs)
if err != nil {
controllers.ErrorHandler(w, r, err.Error(), http.StatusInternalServerError)
return
}
// Build the proper simulation data objects from the simulation models
simulations, err = utils.BuildSimulationDataSlice(ctx, simulationRateObjs, simulationRateKeys)
if err != nil {
controllers.ErrorHandler(w, r, "Could not load user simulations: "+err.Error(), http.StatusInternalServerError)
return
}
// Get 50 of the most recent comments made by the logged in user
q = datastore.NewQuery("Comment").Filter("AuthorKeyName =", userKeyName).Order("-CreationDate").Limit(50)
comments, err = utils.GetCommentDataSlice(r, q)
if err != nil {
controllers.ErrorHandler(w, r, "Error fetching comments: "+err.Error(), http.StatusInternalServerError)
return
}
}
data := map[string]interface{}{
"simulations": simulations,
"comments": comments,
"userIsOwner": false,
"userOwnsPage": userIsOwner,
}
controllers.BaseHandler(w, r, "user/interactions", data)
}
// GET returns JSON all comments associated with the simulationID passed in the url
// POST saves the comment to datastore with the simulationID as the ancestor key
func CommentHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
simKeyName := vars["simulationID"]
ctx := appengine.NewContext(r)
simulationKey := datastore.NewKey(ctx, "Simulation", simKeyName, 0, nil)
if r.Method == "GET" {
q := datastore.NewQuery("Comment").Ancestor(simulationKey).Order("-CreationDate")
comments, err := utils.GetCommentDataSlice(r, q)
if err != nil {
ApiErrorResponse(w, err.Error(), http.StatusInternalServerError)
return
}
// Return comments as json
json.NewEncoder(w).Encode(comments)
}
if r.Method == "POST" {
formMessage := r.FormValue("Contents")
if len(formMessage) == 0 || len(formMessage) > 500 {
ApiErrorResponse(w, "Cannot create empty comments or comments longer than 500 characters", http.StatusBadRequest)
return
}
user, err := utils.GetCurrentUser(ctx)
if err != nil {
ApiErrorResponse(w, err.Error(), http.StatusInternalServerError)
return
}
// Get an ID as a simulation descendant
key, keyName := utils.GenerateUniqueKey(ctx, "Comment", user, simulationKey)
// Build the comment object
comment := models.Comment{
KeyName: keyName,
AuthorKeyName: user.KeyName,
Contents: formMessage,
CreationDate: time.Now(),
}
// Put the comment in the datastore
_, err = datastore.Put(ctx, key, &comment)
if err != nil {
ApiErrorResponse(w, err.Error(), http.StatusInternalServerError)
return
}
}
}