website/pkg/controller/admin/change_log.go

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package admin
import (
"net/http"
"strconv"
"code.nonshy.com/nonshy/website/pkg/config"
"code.nonshy.com/nonshy/website/pkg/models"
"code.nonshy.com/nonshy/website/pkg/session"
"code.nonshy.com/nonshy/website/pkg/templates"
)
// ChangeLog controller (/admin/changelog)
func ChangeLog() http.HandlerFunc {
tmpl := templates.Must("admin/change_log.html")
// Whitelist for ordering options.
var sortWhitelist = []string{
"created_at desc",
"created_at asc",
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Query parameters.
var (
tableName = r.FormValue("table_name")
tableID uint64
aboutUserID uint64
aboutUser = r.FormValue("about_user_id")
adminUserID uint64
adminUser = r.FormValue("admin_user_id")
event = r.FormValue("event")
sort = r.FormValue("sort")
sortOK bool
)
// Sort options.
for _, v := range sortWhitelist {
if sort == v {
sortOK = true
break
}
}
if !sortOK {
sort = "created_at desc"
}
if i, err := strconv.Atoi(r.FormValue("table_id")); err == nil {
tableID = uint64(i)
}
// User IDs can be string values to look up by username or email address.
if aboutUser != "" {
if i, err := strconv.Atoi(aboutUser); err == nil {
aboutUserID = uint64(i)
} else {
if user, err := models.FindUser(aboutUser); err == nil {
aboutUserID = user.ID
} else {
session.FlashError(w, r, "Couldn't find About User ID: %s", err)
}
}
}
if adminUser != "" {
if i, err := strconv.Atoi(adminUser); err == nil {
adminUserID = uint64(i)
} else {
if user, err := models.FindUser(adminUser); err == nil {
adminUserID = user.ID
} else {
session.FlashError(w, r, "Couldn't find Admin User ID: %s", err)
}
}
}
pager := &models.Pagination{
PerPage: config.PageSizeChangeLog,
Sort: sort,
}
pager.ParsePage(r)
cl, err := models.PaginateChangeLog(tableName, tableID, aboutUserID, adminUserID, event, pager)
if err != nil {
session.FlashError(w, r, "Error paginating the change log: %s", err)
}
// Map the various user IDs.
var (
userIDs = []uint64{}
)
for _, row := range cl {
if row.AboutUserID > 0 {
userIDs = append(userIDs, row.AboutUserID)
}
if row.AdminUserID > 0 {
userIDs = append(userIDs, row.AdminUserID)
}
}
userMap, err := models.MapUsers(nil, userIDs)
if err != nil {
session.FlashError(w, r, "Error mapping user IDs: %s", err)
}
var vars = map[string]interface{}{
"ChangeLog": cl,
"TableNames": models.ChangeLogTables(),
"EventTypes": models.ChangeLogEventTypes,
"Pager": pager,
"UserMap": userMap,
// Filters
"TableName": tableName,
"TableID": tableID,
"AboutUserID": aboutUser,
"AdminUserID": adminUser,
"Event": event,
"Sort": sort,
}
if err := tmpl.Execute(w, r, vars); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
})
}