/
footer.go
224 lines (195 loc) · 4.71 KB
/
footer.go
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package admin
import (
"database/sql"
"net/http"
"github.com/OpenCoursePlatform/OpenCoursePlatform-Go/helpers"
"github.com/gorilla/mux"
)
// FooterCategoryData ...
type FooterCategoryData struct {
Title string
Slug string
}
// FooterPage ...
type FooterPage struct {
Title string
Paths []helpers.Path
Categories []FooterCategoryData
NewItemButton bool
NewItemText string
NewItemLink string
}
// GetFooterCategories ...
func GetFooterCategories(db *sql.DB) ([]FooterCategoryData, error) {
rows, err := db.Query(`
SELECT name, slug
FROM footer_categories
`)
if err != nil {
return nil, err
}
defer rows.Close()
var categories []FooterCategoryData
for rows.Next() {
var category FooterCategoryData
err = rows.Scan(&category.Title, &category.Slug)
if err != nil {
return nil, err
}
categories = append(categories, category)
}
err = rows.Err()
if err != nil {
return nil, err
}
return categories, nil
}
// FooterCategories ...
func FooterCategories(w http.ResponseWriter, r *http.Request) {
db, err := helpers.CreateDBHandler()
if err != nil {
helpers.HandleError(err)
}
defer db.Close()
categories, err := GetFooterCategories(db)
if err != nil {
helpers.HandleError(err)
}
p := &FooterPage{"Footer", []helpers.Path{{Name: "Admin", Link: "/admin"}}, categories, true, "New Footer Category", "/footer/new"}
helpers.RenderTemplate(r, w, "admin_footer", p)
}
/*
GetFooterCategory ...
*/
func GetFooterCategory(db *sql.DB, slug string) (FooterCategoryData, int, error) {
var category FooterCategoryData
var id int
category.Slug = slug
query := `SELECT id, name FROM footer_categories WHERE slug = ?`
err := db.QueryRow(query, slug).Scan(&id, &category.Title)
if err != nil {
return category, id, err
}
return category, id, nil
}
// GetFooterItems ...
func GetFooterItems(db *sql.DB, footerID int) ([]ToolbarData, error) {
rows, err := db.Query(`
SELECT pages.title, footer.footer_category_id IS NOT NULL
FROM pages
LEFT OUTER JOIN footer
ON footer.page_id = pages.id
AND footer.footer_category_id = ?
`, footerID)
if err != nil {
return nil, err
}
defer rows.Close()
var toolbar []ToolbarData
for rows.Next() {
var item ToolbarData
err = rows.Scan(&item.Title, &item.Active)
if err != nil {
return toolbar, err
}
toolbar = append(toolbar, item)
}
err = rows.Err()
if err != nil {
return nil, err
}
return toolbar, nil
}
// FooterCategoryPage ...
type FooterCategoryPage struct {
Title string
Paths []helpers.Path
Category FooterCategoryData
ToolbarItems []ToolbarData
NewItemButton bool
NewItemText string
NewItemLink string
}
/*
FooterCategory ...
*/
func FooterCategory(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
slug := vars["group"]
db, err := helpers.CreateDBHandler()
if err != nil {
helpers.HandleError(err)
}
defer db.Close()
category, categoryID, err := GetFooterCategory(db, slug)
if err != nil {
helpers.HandleError(err)
}
footerItems, err := GetFooterItems(db, categoryID)
if err != nil {
helpers.HandleError(err)
}
p := &FooterCategoryPage{category.Title, []helpers.Path{{Name: "Admin", Link: "/admin"}, {Name: "Footer", Link: "/admin/footer"}}, category, footerItems, false, "", ""}
helpers.RenderTemplate(r, w, "admin_footer_category", p)
}
// DropCategoryItems ...
func DropCategoryItems(db *sql.DB, categoryID int) error {
insForm, err := db.Prepare("DELETE FROM footer WHERE footer_category_id = ?")
if err != nil {
return err
}
_, err = insForm.Exec(categoryID)
if err != nil {
return err
}
return nil
}
/*
UpdateCategoryItems ...
*/
func UpdateCategoryItems(db *sql.DB, categoryID int, value string) error {
var id int
query := `SELECT id FROM pages WHERE title = ?`
err := db.QueryRow(query, value).Scan(&id)
if err != nil {
return err
}
insForm, err := db.Prepare("INSERT INTO footer (footer_category_id, page_id) VALUES (?, ?) ON DUPLICATE KEY UPDATE page_id=page_id")
if err != nil {
return err
}
_, err = insForm.Exec(categoryID, id)
if err != nil {
return err
}
return nil
}
// UpdateFooter ...
func UpdateFooter(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
slug := vars["group"]
db, err := helpers.CreateDBHandler()
if err != nil {
helpers.HandleError(err)
}
defer db.Close()
_, categoryID, err := GetFooterCategory(db, slug)
if err != nil {
helpers.HandleError(err)
}
err = r.ParseForm()
if err != nil {
helpers.HandleError(err)
}
err = DropCategoryItems(db, categoryID)
if err != nil {
helpers.HandleError(err)
}
for value := range r.Form {
err = UpdateCategoryItems(db, categoryID, value)
if err != nil {
helpers.HandleError(err)
}
}
http.Redirect(w, r, "/admin/footer/"+slug, http.StatusSeeOther)
}