func (c *TagController) Get(w http.ResponseWriter, r *http.Request) {
id := mux.Vars(r)["id"]
// Validate ObjectId
if !bson.IsObjectIdHex(id) {
w.WriteHeader(http.StatusNotFound)
return
}
// Get object id
oid := bson.ObjectIdHex(id)
// Initialize empty struct
s := models.Tag{}
// Get entry
if err := c.session.DB(c.database).C("tags").FindId(oid).One(&s); err != nil {
w.WriteHeader(http.StatusNotFound)
return
}
// Embed related data
if r.URL.Query().Get("embed") == "true" {
// Get image
if err := c.session.DB(c.database).C("images").FindId(s.ImageID).One(&s.Image); err != nil {
w.WriteHeader(http.StatusNotFound)
return
}
}
// HATEOAS Links
hateoas := c.hateoas
switch strings.ToLower(r.URL.Query().Get("hateoas")) {
case "true":
hateoas = true
case "false":
hateoas = false
}
if hateoas == true {
links := []models.Link{}
if s.ImageID != "" {
links = append(links, models.Link{
HRef: c.baseURI + "/images/" + s.ImageID.Hex(),
Rel: "self",
Method: "GET",
})
}
s.Links = &links
}
// Write content-type, header and payload
jsonWriter(w, r, s, http.StatusOK, c.envelope)
}
func (c *TagController) Create(w http.ResponseWriter, r *http.Request) {
// Initialize empty struct
s := models.Tag{}
// Decode JSON into struct
err := json.NewDecoder(r.Body).Decode(&s)
if err != nil {
jsonError(w, r, "Failed to deconde JSON: "+err.Error(), http.StatusInternalServerError, c.envelope)
return
}
// Set ID
s.ID = bson.NewObjectId()
// Validate input using JSON Schema
docLoader := gojsonschema.NewGoLoader(s)
schemaLoader := gojsonschema.NewReferenceLoader(c.schemaURI)
res, err := gojsonschema.Validate(schemaLoader, docLoader)
if err != nil {
jsonError(w, r, "Failed to load schema: "+err.Error(), http.StatusInternalServerError, c.envelope)
return
}
if !res.Valid() {
var errors []string
for _, e := range res.Errors() {
errors = append(errors, fmt.Sprintf("%s: %s", e.Context().String(), e.Description()))
}
jsonError(w, r, errors, http.StatusInternalServerError, c.envelope)
return
}
// Insert entry
if err := c.session.DB(c.database).C("tags").Insert(s); err != nil {
jsonError(w, r, err.Error(), http.StatusInternalServerError, c.envelope)
return
}
// Write content-type, header and payload
jsonWriter(w, r, s, http.StatusCreated, c.envelope)
}