gowiki/pkg/db/section.go

103 lines
2.3 KiB
Go

// Copyright (C) 2019 Marius Schellenberger
package db
import (
"errors"
"git.giftfish.de/ston1th/gowiki/pkg/core"
"git.giftfish.de/ston1th/gowiki/pkg/log"
"sort"
"strings"
)
const sectionPrefix = "section/"
var (
errSectionExists = errors.New("db: section already exist")
)
func (db *DB) GetSections() (secs core.Sections, err error) {
err = db.store.ForEach(func(k string, _ []byte) error {
if trim, ok := hasTrimPrefix(k, sectionPrefix); ok {
s, err := db.GetSection(trim)
if err == nil {
secs = append(secs, s)
}
}
return nil
})
sort.Sort(secs)
return
}
func (db *DB) GetSection(section string) (s core.Section, err error) {
err = db.store.Get(sectionPrefix+section, &s)
return
}
func (db *DB) SectionExists(section string) error {
return db.store.Get(sectionPrefix+section, nil)
}
func (db *DB) CreateSection(section string, members []string, user bool) error {
section = userRe.ReplaceAllString(section, "")
if err := db.SectionExists(section); err == nil {
return errSectionExists
}
return db.UpdateSection(section, members, user)
}
func (db *DB) UpdateSection(section string, members []string, user bool) error {
section = userRe.ReplaceAllString(section, "")
if _, ok := core.Contains(section, reservedNames); ok {
return errNameReserved
}
var m []string
if user {
m = append(m, section)
} else {
for _, v := range members {
if v == "" {
continue
}
if err := db.UserExists(v); err == nil {
m = append(m, v)
}
}
}
return db.store.Set(sectionPrefix+section, &core.Section{section, user, m})
}
func (db *DB) DeleteSection(section string, user bool) error {
if section == core.WikiSection {
return errors.New("section '" + core.WikiSection + "' cannot be deleted")
}
s, err := db.GetSection(section)
if err != nil {
return err
}
err = db.store.Delete(sectionPrefix + section)
if err != nil {
return err
}
if !s.User && !user {
return nil
}
section += "/"
var pages []string
db.store.ForEach(func(k string, _ []byte) error {
if trim, ok := hasTrimPrefix(k, pagePrefix); ok {
if strings.HasPrefix(trim, section) {
pages = append(pages, trim)
}
}
return nil
})
for _, p := range pages {
err := db.deletePage(p)
if err != nil {
log.Debugf("DeleteSection %s, %s", section, err)
}
}
return nil
}