130 lines
2.7 KiB
Go
130 lines
2.7 KiB
Go
package database
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import (
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"encoding/json"
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"tomatentum.net/svg-templater/pkg/svg"
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)
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func AddPage(page svg.TemplatePage) {
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}
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func DeletePage(templateID string, page int) {
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}
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const SVGPAGETABLECREATE string = `
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CREATE TABLE IF NOT EXISTS svgpage (
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id varchar(16) NOT NULL,
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page int NOT NULL,
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templatekeys longtext NOT NULL,
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PRIMARY KEY (id, page)
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);`
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const INSERTSVGPAGESQL string = "INSERT INTO svgpage VALUES (?, ?, ?);"
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const GETSPECIFICSVGPAGESSQL string = "SELECT * FROM svgpage WHERE id = ?;"
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const DELETESVGPAGESQL string = "DELETE FROM svgpage WHERE id = ? AND page = ?;"
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const DELETEALLSVGPAGESQL string = "DELETE FROM svgpage WHERE id = ?;"
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const COUNTSVGPAGESQL string = "SELECT COUNT(*) FROM svgpage WHERE id = ?;"
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const UPDATEPAGESQL string = "UPDATE svgpage SET page = page - 1 WHERE page > ?;"
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func InsertSVGPage(data *svg.TemplatePage) (int, error) {
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json, err := json.Marshal(data.TemplateKeys)
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if err != nil {
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return 0, err
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}
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count, err := GetPageCount(data.TemplateId)
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if err != nil {
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return 0, err
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}
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if _, err := database.Exec(INSERTSVGPAGESQL, data.TemplateId, count+1, string(json)); err != nil {
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return 0, err
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}
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return count + 1, nil
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}
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func GetSVGPages(id string) ([]svg.TemplatePage, error) {
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res, err := database.Query(GETSPECIFICSVGPAGESSQL, id)
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if err != nil {
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return nil, err
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}
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defer res.Close()
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pages := make([]svg.TemplatePage, 0)
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for res.Next() {
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var (
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id string
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page int
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keysjson []byte
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keys []string
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)
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if err := res.Scan(&id, &page, &keysjson); err != nil {
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return nil, err
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}
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if err := json.Unmarshal(keysjson, &keys); err != nil {
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return nil, err
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}
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pages = append(pages, svg.TemplatePage{TemplateId: id, Page: page, TemplateKeys: keys})
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}
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return pages, nil
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}
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func DeleteSVGPage(id string, page int) (bool, error) {
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res, err := database.Exec(DELETESVGPAGESQL, id, page)
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if err != nil {
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return false, err
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}
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num, err := res.RowsAffected()
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if err != nil {
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return false, err
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}
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if num == 0 {
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return false, nil
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}
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if err := movePages(id, page); err != nil {
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return false, err
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}
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return true, nil
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}
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func DeleteAllSVGPages(id string) (bool, error) {
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res, err := database.Exec(DELETEALLSVGPAGESQL, id)
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if err != nil {
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return false, err
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}
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num, err := res.RowsAffected()
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if err != nil {
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return false, err
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}
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if num == 0 {
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return false, nil
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}
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return true, nil
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}
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func GetPageCount(id string) (int, error) {
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res := database.QueryRow(COUNTSVGPAGESQL, id)
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var count int
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if err := res.Scan(&count); err != nil {
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return 0, err
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}
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return count, nil
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}
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func movePages(id string, deletedPage int) error {
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_, err := database.Exec(UPDATEPAGESQL, deletedPage)
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return err
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}
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