func queryPosts(res *wcg.Response, req *wcg.Request, per_page int) (*postQueryResult, error) {
var list []blog.Post
var basePath = req.HttpRequest().URL.Path
is_admin := (lib.GetUserKind(req) == lib.Admin) && (req.Query("is_admin") == "true")
if per_page == 0 {
per_page = wcg.ParseInt(req.Query("n"), 5, 0, 20) // default 5, max 20
}
page := wcg.ParseInt(req.Query("page"), 0, 0, wcg.ParseIntMax)
q := NewPostDriver(lib.NewAppContextFromRequest(req)).NewQuery()
q = q.Order("-PublishAt").Order("-CreatedAt")
if !is_admin {
q = q.Filter("PublishAt <=", time.Now()).Filter("IsDraft =", false).Filter("IsHidden =", false)
}
_, err := q.Offset(page * per_page).Limit(per_page).GetAll(&list)
if err != nil {
return nil, err
}
if list == nil {
list = make([]blog.Post, 0)
}
p := &postQueryResult{
Posts: list,
}
// prev url
if page > 0 {
p.Previous = fmt.Sprintf("%s?page=%d&n=%d", basePath, page-1, per_page)
if is_admin {
p.Previous = fmt.Sprintf("%s&is_admin=true", p.Previous)
}
}
// next url
if len(list) == per_page {
p.Next = fmt.Sprintf("%s?page=%d&n=%d", basePath, page+1, per_page)
if is_admin {
p.Next = fmt.Sprintf("%s&is_admin=true", p.Next)
}
}
return p, nil
}
func setupApi(app *App) {
app.Api.Get("/posts/", func(res *wcg.Response, req *wcg.Request) {
if result, err := queryPosts(res, req, 0); err != nil {
lib.Error(res, req, err)
} else {
res.WriteJson(result)
}
})
app.Api.Get("/posts/:id.json", func(res *wcg.Response, req *wcg.Request) {
var p blog.Post
driver := NewPostDriver(lib.NewAppContextFromRequest(req))
key := driver.NewKey(req.Param("id"), 0, nil)
if err := driver.Get(key, &p); err != nil {
lib.Error(res, req, err)
return
}
if p.IsDraft && lib.GetUserKind(req) != lib.Admin {
app.Api.NotFound(res, req)
} else {
res.WriteJson(p)
}
})
app.Api.Post("/posts/", lib.Admin.Required(
func(res *wcg.Response, req *wcg.Request) {
driver := NewPostDriver(lib.NewAppContextFromRequest(req))
p := &blog.Post{}
if err := updateAttributesFromForm(res, req, p); err != nil {
lib.Error(res, req, err)
return
}
if _, err := driver.Save(p); err != nil {
lib.Error(res, req, err)
}
app.Api.Created(res, req, p.Id)
},
))
app.Api.Put("/posts/:id.json", lib.Admin.Required(
func(res *wcg.Response, req *wcg.Request) {
var p blog.Post
driver := NewPostDriver(lib.NewAppContextFromRequest(req))
key := driver.NewKey(req.Param("id"), 0, nil)
if err := driver.Get(key, &p); err != nil {
lib.Error(res, req, err)
return
}
if err := updateAttributesFromForm(res, req, &p); err != nil {
lib.Error(res, req, err)
return
}
if _, err := driver.Save(&p); err != nil {
lib.Error(res, req, err)
return
} else {
app.Api.Ok(res, req)
}
},
))
app.Api.Delete("/posts/:id.json", lib.Admin.Required(
func(res *wcg.Response, req *wcg.Request) {
driver := NewPostDriver(lib.NewAppContextFromRequest(req))
key := driver.NewKey(req.Param("id"), 0, nil)
if err := driver.Delete(key); err != nil {
lib.Error(res, req, err)
return
} else {
app.Api.Ok(res, req)
}
},
))
}