285 lines
		
	
	
		
			8.3 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			285 lines
		
	
	
		
			8.3 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package models
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import (
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	"database/sql"
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	"errors"
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	"strconv"
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	"time"
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)
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type GuestbookSettings struct {
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	IsCommentingEnabled   bool
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	ReenableCommenting    time.Time
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	IsVisible             bool
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	FilteredWords         []string
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	AllowRemoteHostAccess bool
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}
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var ValidDisableDurations = []string{"true", "false", "1h", "4h", "8h", "24h", "72h", "168h"}
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const (
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	SettingGbCommentingEnabled = "commenting_enabled"
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	SettingGbReenableComments  = "reenable_comments"
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	SettingGbVisible           = "is_visible"
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	SettingGbFilteredWords     = "filtered_words"
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	SettingGbAllowRemote       = "remote_enabled"
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)
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type Guestbook struct {
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	ID        int64
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	ShortId   uint64
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	UserId    int64
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	WebsiteId int64
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	Created   time.Time
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	Deleted   time.Time
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	IsActive  bool
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	Settings  GuestbookSettings
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}
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func (g Guestbook) CanComment() bool {
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	now := time.Now().UTC()
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	return g.Settings.IsCommentingEnabled && g.Settings.ReenableCommenting.Before(now)
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}
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type GuestbookModel struct {
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	DB       *sql.DB
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	Settings map[string]Setting
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}
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func (m *GuestbookModel) InitializeSettingsMap() error {
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	if m.Settings == nil {
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		m.Settings = make(map[string]Setting)
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	}
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	stmt := `SELECT settings.Id, settings.Description, Constrained, d.Id, d.Description, g.Id, g.Description, MinValue, MaxValue
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        FROM settings
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        LEFT JOIN setting_data_types d ON settings.DataType = d.Id
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        LEFT JOIN setting_groups g ON settings.SettingGroup = g.Id
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        WHERE SettingGroup = (SELECT Id FROM setting_groups WHERE Description = 'guestbook' LIMIT 1)`
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	result, err := m.DB.Query(stmt)
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	if err != nil {
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		return err
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	}
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	for result.Next() {
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		var s Setting
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		var mn sql.NullString
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		var mx sql.NullString
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		err := result.Scan(&s.id, &s.description, &s.constrained, &s.dataType.id, &s.dataType.description, &s.settingGroup.id, &s.settingGroup.description, &mn, &mx)
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		if mn.Valid {
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			s.minValue = mn.String
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		}
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		if mx.Valid {
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			s.maxValue = mx.String
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		}
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		if err != nil {
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			return err
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		}
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		m.Settings[s.description] = s
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	}
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	return nil
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}
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func (m *GuestbookModel) Insert(shortId uint64, userId int64, websiteId int64, settings GuestbookSettings) (int64, error) {
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	stmt := `INSERT INTO guestbooks (ShortId, UserId, WebsiteId, Created, IsActive)
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    VALUES(?, ?, ?, ?, TRUE)`
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	result, err := m.DB.Exec(stmt, shortId, userId, websiteId, time.Now().UTC())
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	if err != nil {
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		return -1, err
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	}
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	id, err := result.LastInsertId()
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	if err != nil {
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		return -1, err
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	}
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	err = m.initializeGuestbookSettings(id, settings)
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	if err != nil {
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		return id, err
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	}
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	return id, nil
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}
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func (m *GuestbookModel) Get(shortId uint64) (Guestbook, error) {
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	stmt := `SELECT Id, ShortId, UserId, WebsiteId, Created, Deleted, IsActive FROM guestbooks
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    WHERE ShortId = ?`
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	row := m.DB.QueryRow(stmt, shortId)
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	var g Guestbook
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	var t sql.NullTime
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	err := row.Scan(&g.ID, &g.ShortId, &g.UserId, &g.WebsiteId, &g.Created, &t, &g.IsActive)
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	if err != nil {
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		if errors.Is(err, sql.ErrNoRows) {
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			return Guestbook{}, ErrNoRecord
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		}
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		return Guestbook{}, err
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	}
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	if t.Valid {
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		g.Deleted = t.Time
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	}
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	settings, err := m.GetSettings(g.ID)
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	if err != nil {
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		return g, err
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	}
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	g.Settings = settings
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	return g, nil
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}
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func (m *GuestbookModel) GetAll(userId int64) ([]Guestbook, error) {
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	stmt := `SELECT Id, ShortId, UserId, WebsiteId, Created, IsActive FROM guestbooks
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    WHERE UserId = ? AND DELETED IS NULL`
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	rows, err := m.DB.Query(stmt, userId)
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	if err != nil {
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		return nil, err
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	}
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	var guestbooks []Guestbook
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	for rows.Next() {
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		var g Guestbook
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		err = rows.Scan(&g.ID, &g.ShortId, &g.UserId, &g.WebsiteId, &g.Created, &g.IsActive)
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		if err != nil {
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			return nil, err
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		}
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		guestbooks = append(guestbooks, g)
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	}
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	if err = rows.Err(); err != nil {
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		return nil, err
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	}
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	return guestbooks, nil
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}
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func (m *GuestbookModel) GetSettings(guestbookId int64) (GuestbookSettings, error) {
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	stmt := `SELECT g.SettingId, a.ItemValue, g.UnconstrainedValue FROM guestbook_settings AS g
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			LEFT JOIN allowed_setting_values AS a ON g.AllowedSettingValueId = a.Id
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			WHERE GuestbookId = ?`
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	var settings GuestbookSettings
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	rows, err := m.DB.Query(stmt, guestbookId)
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	if err != nil {
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		return settings, err
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	}
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	for rows.Next() {
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		var id int
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		var itemValue sql.NullString
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		var unconstrainedValue sql.NullString
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		err = rows.Scan(&id, &itemValue, &unconstrainedValue)
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		if err != nil {
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			return settings, err
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		}
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		switch id {
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		case m.Settings[SettingGbCommentingEnabled].id:
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			settings.IsCommentingEnabled, err = strconv.ParseBool(itemValue.String)
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			if err != nil {
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				return settings, err
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			}
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			break
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		case m.Settings[SettingGbReenableComments].id:
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			settings.ReenableCommenting, err = time.Parse(time.RFC3339, unconstrainedValue.String)
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			if err != nil {
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				return settings, err
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			}
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			break
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		case m.Settings[SettingGbVisible].id:
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			settings.IsVisible, err = strconv.ParseBool(itemValue.String)
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			if err != nil {
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				return settings, err
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			}
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			break
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		case m.Settings[SettingGbAllowRemote].id:
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			settings.AllowRemoteHostAccess, err = strconv.ParseBool(itemValue.String)
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			if err != nil {
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				return settings, err
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			}
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			break
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		}
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	}
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	// if comment disable setting has expired, enable commenting
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	if time.Now().UTC().After(settings.ReenableCommenting) {
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		settings.IsCommentingEnabled = true
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		m.UpdateSetting(guestbookId, m.Settings[SettingGbCommentingEnabled], "true")
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	}
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	return settings, nil
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}
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func (m *GuestbookModel) initializeGuestbookSettings(guestbookId int64, settings GuestbookSettings) error {
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	stmt := `INSERT INTO guestbook_settings (GuestbookId, SettingId, AllowedSettingValueId, UnconstrainedValue) VALUES 
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	(?, ?, ?, ?),
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	(?, ?, ?, ?),
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	(?, ?, ?, ?),
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	(?, ?, ?, ?),
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	(?, ?, ?, ?)`
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	_, err := m.DB.Exec(stmt,
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		guestbookId, m.Settings[SettingGbCommentingEnabled].id, settings.IsCommentingEnabled, nil,
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		guestbookId, m.Settings[SettingGbReenableComments].id, nil, settings.ReenableCommenting.String(),
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		guestbookId, m.Settings[SettingGbVisible].id, settings.IsVisible, nil,
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		guestbookId, m.Settings[SettingGbAllowRemote].id, settings.AllowRemoteHostAccess, nil)
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	if err != nil {
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		return err
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	}
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	return nil
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}
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func (m *GuestbookModel) UpdateGuestbookSettings(guestbookId int64, settings GuestbookSettings) error {
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	err := m.UpdateSetting(guestbookId, m.Settings[SettingGbVisible], strconv.FormatBool(settings.IsVisible))
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	if err != nil {
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		return err
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	}
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	err = m.UpdateSetting(guestbookId, m.Settings[SettingGbAllowRemote], strconv.FormatBool(settings.AllowRemoteHostAccess))
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	if err != nil {
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		return err
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	}
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	err = m.UpdateSetting(guestbookId, m.Settings[SettingGbCommentingEnabled], strconv.FormatBool(settings.IsCommentingEnabled))
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	if err != nil {
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		return err
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	}
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	err = m.UpdateSetting(guestbookId, m.Settings[SettingGbReenableComments], settings.ReenableCommenting.Format(time.RFC3339))
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	if err != nil {
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		return err
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	}
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	return nil
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}
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func (m *GuestbookModel) InsertSetting(guestbookId int64, setting Setting, value string) error {
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	stmt := `
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INSERT INTO guestbook_settings (GuestbookId, SettingId, AllowedSettingValueId, UnconstrainedValue)
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SELECT  ?, 
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        settings.Id,
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        (SELECT Id FROM allowed_setting_values WHERE SettingId = settings.id AND ItemValue = ?),
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        CASE WHEN NOT EXISTS (SELECT 1 FROM settings AS s where s.Id = settings.Id AND s.Constrained = 1) THEN ? ELSE NULL END
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FROM settings
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WHERE settings.id = ?
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	`
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	result, err := m.DB.Exec(stmt, guestbookId, value, value, setting.id)
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	if err != nil {
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		return err
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	}
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	_, err = result.LastInsertId()
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	if err != nil {
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		return err
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	}
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	return nil
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}
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func (m *GuestbookModel) UpdateSetting(guestbookId int64, setting Setting, value string) error {
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	stmt := `UPDATE guestbook_settings SET
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				AllowedSettingValueId=IFNULL(
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					(SELECT Id FROM allowed_setting_values WHERE SettingId = guestbook_settings.SettingId AND ItemValue = ?), AllowedSettingValueId
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				), 
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				UnconstrainedValue=(SELECT ? FROM settings WHERE settings.Id = guestbook_settings.SettingId AND settings.Constrained=0)
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			WHERE GuestbookId = ?
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			AND SettingId = (SELECT Id from Settings WHERE Description=?);`
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	result, err := m.DB.Exec(stmt, value, value, guestbookId, setting.description)
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	if err != nil {
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		return err
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	}
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	rows, err := result.RowsAffected()
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	if err != nil {
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		return err
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	}
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	if rows != 1 {
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		return ErrInvalidSettingValue
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	}
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	return nil
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}
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func (m *GuestbookModel) AddFilteredWord(guestbookId int64, word string) error {
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	return nil
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}
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func (m *GuestbookModel) RemoveFilteredWord(guestbookId int64, word string) error {
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	return nil
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}
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