func pagesFunc(helper *structure.Helper, values *structure.RequestData) []byte {
var count int64
var err error
if values.CurrentTemplate == 0 { // index
count = values.Blog.PostCount
} else if values.CurrentTemplate == 2 { // tag
count, err = database.RetrieveNumberOfPostsByTag(values.CurrentTag.Id)
if err != nil {
log.Println("Couldn't get number of posts for tag", err.Error())
return []byte{}
}
} else if values.CurrentTemplate == 3 { // author
count, err = database.RetrieveNumberOfPostsByUser(values.Posts[values.CurrentPostIndex].Author.Id)
if err != nil {
log.Println("Couldn't get number of posts for author", err.Error())
return []byte{}
}
}
maxPages := positiveCeilingInt64(float64(count) / float64(values.Blog.PostsPerPage))
// Output at least 1 (even if there are no posts in the database)
if maxPages == 0 {
maxPages = 1
}
return []byte(strconv.FormatInt(maxPages, 10))
}
func paginationDotTotalFunc(helper *structure.Helper, values *structure.RequestData) []byte {
if values.CurrentTemplate == 0 { // index
return []byte(strconv.FormatInt(values.Blog.PostCount, 10))
} else if values.CurrentTemplate == 3 { // author
count, err := database.RetrieveNumberOfPostsByUser(values.Posts[values.CurrentPostIndex].Author.Id)
if err != nil {
log.Println("Couldn't get number of posts", err.Error())
return []byte{}
}
return []byte(strconv.FormatInt(count, 10))
} else if values.CurrentTemplate == 2 { // tag
count, err := database.RetrieveNumberOfPostsByTag(values.CurrentTag.Id)
if err != nil {
log.Println("Couldn't get number of posts", err.Error())
return []byte{}
}
return []byte(strconv.FormatInt(count, 10))
}
return []byte{}
}
func nextFunc(helper *structure.Helper, values *structure.RequestData) []byte {
var count int64
var err error
if values.CurrentTemplate == 0 { // index
count = values.Blog.PostCount
} else if values.CurrentTemplate == 2 { // tag
count, err = database.RetrieveNumberOfPostsByTag(values.CurrentTag.Id)
if err != nil {
log.Println("Couldn't get number of posts for tag", err.Error())
return []byte{}
}
} else if values.CurrentTemplate == 3 { // author
count, err = database.RetrieveNumberOfPostsByUser(values.Posts[values.CurrentPostIndex].Author.Id)
if err != nil {
log.Println("Couldn't get number of posts for author", err.Error())
return []byte{}
}
}
maxPages := positiveCeilingInt64(float64(count) / float64(values.Blog.PostsPerPage))
if int64(values.CurrentIndexPage) < maxPages {
return []byte{1}
}
return []byte{}
}
func page_urlFunc(helper *structure.Helper, values *structure.RequestData) []byte {
if len(helper.Arguments) != 0 {
if helper.Arguments[0].Name == "prev" || helper.Arguments[0].Name == "pagination.prev" {
if values.CurrentIndexPage > 1 {
var buffer bytes.Buffer
if values.CurrentIndexPage == 2 {
if values.CurrentTemplate == 3 { // author
buffer.WriteString("/author/")
//TODO: Error handling if there is no Posts[values.CurrentPostIndex]
buffer.WriteString(values.Posts[values.CurrentPostIndex].Author.Slug)
} else if values.CurrentTemplate == 2 { // tag
buffer.WriteString("/tag/")
//TODO: Error handling if there is no Posts[values.CurrentPostIndex]
buffer.WriteString(values.CurrentTag.Slug)
}
buffer.WriteString("/")
} else {
if values.CurrentTemplate == 3 { // author
buffer.WriteString("/author/")
//TODO: Error handling if there is no Posts[values.CurrentPostIndex]
buffer.WriteString(values.Posts[values.CurrentPostIndex].Author.Slug)
} else if values.CurrentTemplate == 2 { // tag
buffer.WriteString("/tag/")
//TODO: Error handling if there is no Posts[values.CurrentPostIndex]
buffer.WriteString(values.CurrentTag.Slug)
}
buffer.WriteString("/page/")
buffer.WriteString(strconv.Itoa(values.CurrentIndexPage - 1))
buffer.WriteString("/")
}
return buffer.Bytes()
}
} else if helper.Arguments[0].Name == "next" || helper.Arguments[0].Name == "pagination.next" {
var count int64
var err error
if values.CurrentTemplate == 0 { // index
count = values.Blog.PostCount
} else if values.CurrentTemplate == 2 { // tag
count, err = database.RetrieveNumberOfPostsByTag(values.CurrentTag.Id)
if err != nil {
log.Println("Couldn't get number of posts for tag", err.Error())
return []byte{}
}
} else if values.CurrentTemplate == 3 { // author
count, err = database.RetrieveNumberOfPostsByUser(values.Posts[values.CurrentPostIndex].Author.Id)
if err != nil {
log.Println("Couldn't get number of posts for author", err.Error())
return []byte{}
}
}
maxPages := positiveCeilingInt64(float64(count) / float64(values.Blog.PostsPerPage))
if int64(values.CurrentIndexPage) < maxPages {
var buffer bytes.Buffer
if values.CurrentTemplate == 3 { // author
buffer.WriteString("/author/")
// TODO: Error handling if there is no Posts[values.CurrentPostIndex]
buffer.WriteString(values.Posts[values.CurrentPostIndex].Author.Slug)
} else if values.CurrentTemplate == 2 { // tag
buffer.WriteString("/tag/")
// TODO: Error handling if there is no Posts[values.CurrentPostIndex]
buffer.WriteString(values.CurrentTag.Slug)
}
buffer.WriteString("/page/")
buffer.WriteString(strconv.Itoa(values.CurrentIndexPage + 1))
buffer.WriteString("/")
return buffer.Bytes()
}
}
}
return []byte{}
}