mirror of
https://github.com/go-shiori/shiori.git
synced 2024-11-16 22:25:13 +08:00
376 lines
9.1 KiB
Go
376 lines
9.1 KiB
Go
package database
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import (
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"database/sql"
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"fmt"
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"github.com/RadhiFadlillah/go-readability"
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"github.com/RadhiFadlillah/shiori/model"
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"github.com/jmoiron/sqlx"
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"log"
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"sort"
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"strconv"
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"strings"
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"time"
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)
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type SQLiteDatabase struct {
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sqlx.DB
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}
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func OpenSQLiteDatabase() (*SQLiteDatabase, error) {
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// Open database and start transaction
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var err error
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db := sqlx.MustConnect("sqlite3", "shiori.db")
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tx := db.MustBegin()
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// Make sure to rollback if panic ever happened
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defer func() {
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if r := recover(); r != nil {
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panicErr, _ := r.(error)
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log.Println("Database error:", panicErr)
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tx.Rollback()
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db = nil
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err = panicErr
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}
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}()
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_, err = tx.Exec(`CREATE TABLE IF NOT EXISTS account(
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id INTEGER NOT NULL,
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username TEXT NOT NULL,
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password TEXT NOT NULL,
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CONSTRAINT account_PK PRIMARY KEY(id),
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CONSTRAINT account_username_UNIQUE UNIQUE(username))`)
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checkError(err)
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_, err = tx.Exec(`CREATE TABLE IF NOT EXISTS bookmark(
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id INTEGER NOT NULL,
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url TEXT NOT NULL,
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title TEXT NOT NULL,
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image_url TEXT NOT NULL DEFAULT "",
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excerpt TEXT NOT NULL DEFAULT "",
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author TEXT NOT NULL DEFAULT "",
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language TEXT NOT NULL DEFAULT "",
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min_read_time INTEGER NOT NULL DEFAULT 0,
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max_read_time INTEGER NOT NULL DEFAULT 0,
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modified TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
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CONSTRAINT bookmark_PK PRIMARY KEY(id),
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CONSTRAINT bookmark_url_UNIQUE UNIQUE(url))`)
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checkError(err)
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_, err = tx.Exec(`CREATE TABLE IF NOT EXISTS tag(
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id INTEGER NOT NULL,
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name TEXT NOT NULL,
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CONSTRAINT tag_PK PRIMARY KEY(id),
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CONSTRAINT tag_name_UNIQUE UNIQUE(name))`)
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checkError(err)
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_, err = tx.Exec(`CREATE TABLE IF NOT EXISTS bookmark_tag(
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bookmark_id INTEGER NOT NULL,
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tag_id INTEGER NOT NULL,
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CONSTRAINT bookmark_tag_PK PRIMARY KEY(bookmark_id, tag_id),
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CONSTRAINT bookmark_id_FK FOREIGN KEY(bookmark_id) REFERENCES bookmark(id),
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CONSTRAINT tag_id_FK FOREIGN KEY(tag_id) REFERENCES tag(id))`)
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checkError(err)
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_, err = tx.Exec(`CREATE VIRTUAL TABLE IF NOT EXISTS bookmark_content USING fts4(title, content)`)
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checkError(err)
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err = tx.Commit()
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checkError(err)
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return &SQLiteDatabase{*db}, err
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}
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func (db *SQLiteDatabase) SaveBookmark(article readability.Article, tags ...string) (bookmark model.Bookmark, err error) {
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// Prepare transaction
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tx, err := db.Beginx()
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if err != nil {
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return model.Bookmark{}, err
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}
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// Make sure to rollback if panic ever happened
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defer func() {
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if r := recover(); r != nil {
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panicErr, _ := r.(error)
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tx.Rollback()
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bookmark = model.Bookmark{}
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err = panicErr
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}
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}()
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// Save article to database
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res, err := tx.Exec(`INSERT INTO bookmark (
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url, title, image_url, excerpt, author,
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language, min_read_time, max_read_time)
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VALUES(?, ?, ?, ?, ?, ?, ?, ?)`,
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article.URL,
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article.Meta.Title,
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article.Meta.Image,
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article.Meta.Excerpt,
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article.Meta.Author,
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article.Meta.Language,
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article.Meta.MinReadTime,
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article.Meta.MaxReadTime)
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checkError(err)
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// Get last inserted ID
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bookmarkID, err := res.LastInsertId()
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checkError(err)
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// Save bookmark content
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_, err = tx.Exec(`INSERT INTO bookmark_content
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(docid, title, content) VALUES (?, ?, ?)`,
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bookmarkID, article.Meta.Title, article.Content)
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checkError(err)
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// Save tags
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stmtGetTag, err := tx.Preparex(`SELECT id FROM tag WHERE name = ?`)
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checkError(err)
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stmtInsertTag, err := tx.Preparex(`INSERT INTO tag (name) VALUES (?)`)
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checkError(err)
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stmtInsertBookmarkTag, err := tx.Preparex(`INSERT OR IGNORE INTO bookmark_tag
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(tag_id, bookmark_id) VALUES (?, ?)`)
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checkError(err)
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bookmarkTags := []model.Tag{}
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for _, tag := range tags {
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tag = strings.ToLower(tag)
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tag = strings.TrimSpace(tag)
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tagID := int64(-1)
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err = stmtGetTag.Get(&tagID, tag)
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if err != nil && err != sql.ErrNoRows {
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panic(err)
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}
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if tagID == -1 {
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res, err := stmtInsertTag.Exec(tag)
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checkError(err)
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tagID, err = res.LastInsertId()
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checkError(err)
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}
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stmtInsertBookmarkTag.Exec(tagID, bookmarkID)
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bookmarkTags = append(bookmarkTags, model.Tag{
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ID: tagID,
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Name: tag,
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})
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}
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// Commit transaction
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err = tx.Commit()
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checkError(err)
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// Return result
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bookmark = model.Bookmark{
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ID: bookmarkID,
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URL: article.URL,
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Title: article.Meta.Title,
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ImageURL: article.Meta.Image,
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Excerpt: article.Meta.Excerpt,
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Author: article.Meta.Author,
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Language: article.Meta.Language,
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MinReadTime: article.Meta.MinReadTime,
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MaxReadTime: article.Meta.MaxReadTime,
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Modified: time.Now().Format("2006-01-02 15:04:05"),
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Tags: bookmarkTags,
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}
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return bookmark, err
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}
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func (db *SQLiteDatabase) GetBookmarks(indices ...string) ([]model.Bookmark, error) {
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// Prepare query
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query := `SELECT id,
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url, title, image_url, excerpt, author,
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language, min_read_time, max_read_time, modified
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FROM bookmark`
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args := []interface{}{}
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if len(indices) == 0 {
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query += " WHERE 1"
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} else {
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query += " WHERE 0"
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}
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// Add where clause
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for _, strIndex := range indices {
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if strings.Contains(strIndex, "-") {
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parts := strings.Split(strIndex, "-")
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if len(parts) != 2 {
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return nil, fmt.Errorf("Index is not valid")
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}
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minIndex, errMin := strconv.Atoi(parts[0])
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maxIndex, errMax := strconv.Atoi(parts[1])
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if errMin != nil || errMax != nil {
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return nil, fmt.Errorf("Index is not valid")
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}
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query += ` OR (id BETWEEN ? AND ?)`
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args = append(args, minIndex, maxIndex)
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} else {
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index, err := strconv.Atoi(strIndex)
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if err != nil {
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return nil, fmt.Errorf("Index is not valid")
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}
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query += ` OR id = ?`
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args = append(args, index)
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}
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}
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// Fetch bookmarks
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bookmarks := []model.Bookmark{}
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err := db.Select(&bookmarks, query, args...)
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if err != nil && err != sql.ErrNoRows {
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return nil, err
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}
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// Fetch tags for each bookmarks
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stmtGetTags, err := db.Preparex(`SELECT t.id, t.name
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FROM bookmark_tag bt LEFT JOIN tag t ON bt.tag_id = t.id
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WHERE bt.bookmark_id = ? ORDER BY t.name`)
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if err != nil {
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return nil, err
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}
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defer stmtGetTags.Close()
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for i := range bookmarks {
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tags := []model.Tag{}
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err = stmtGetTags.Select(&tags, bookmarks[i].ID)
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if err != nil && err != sql.ErrNoRows {
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return nil, err
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}
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bookmarks[i].Tags = tags
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}
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return bookmarks, nil
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}
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func (db *SQLiteDatabase) DeleteBookmarks(indices ...string) (oldIndices, newIndices []int, err error) {
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// Convert list of index to int
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listIndex := []int{}
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errInvalidIndex := fmt.Errorf("Index is not valid")
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for _, strIndex := range indices {
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if strings.Contains(strIndex, "-") {
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parts := strings.Split(strIndex, "-")
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if len(parts) != 2 {
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return nil, nil, errInvalidIndex
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}
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minIndex, errMin := strconv.Atoi(parts[0])
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maxIndex, errMax := strconv.Atoi(parts[1])
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if errMin != nil || errMax != nil || minIndex < 1 || minIndex > maxIndex {
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return nil, nil, errInvalidIndex
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}
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for i := minIndex; i <= maxIndex; i++ {
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listIndex = append(listIndex, i)
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}
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} else {
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index, err := strconv.Atoi(strIndex)
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if err != nil || index < 1 {
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return nil, nil, errInvalidIndex
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}
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listIndex = append(listIndex, index)
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}
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}
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// Sort the index
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sort.Ints(listIndex)
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// Create args and where clause
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args := []interface{}{}
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whereClause := " WHERE 1"
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if len(listIndex) > 0 {
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whereClause = " WHERE id IN ("
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for _, idx := range listIndex {
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args = append(args, idx)
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whereClause += fmt.Sprintf("%d,", idx)
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}
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whereClause = whereClause[:len(whereClause)-1]
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whereClause += ")"
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}
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// Begin transaction
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tx, err := db.Beginx()
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if err != nil {
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return nil, nil, errInvalidIndex
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}
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// Make sure to rollback if panic ever happened
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defer func() {
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if r := recover(); r != nil {
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panicErr, _ := r.(error)
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tx.Rollback()
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oldIndices = nil
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newIndices = nil
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err = panicErr
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}
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}()
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// Delete bookmarks
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res, err := tx.Exec("DELETE FROM bookmark "+whereClause, args...)
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checkError(err)
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nAffected, err := res.RowsAffected()
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checkError(err)
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whereTagClause := strings.Replace(whereClause, "id", "bookmark_id", 1)
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_, err = tx.Exec("DELETE FROM bookmark_tag "+whereTagClause, args...)
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checkError(err)
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whereContentClause := strings.Replace(whereClause, "id", "docid", 1)
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_, err = tx.Exec("DELETE FROM bookmark_content "+whereContentClause, args...)
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checkError(err)
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// Get largest index
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oldIndices = []int{}
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err = tx.Select(&oldIndices, "SELECT id FROM bookmark ORDER BY id DESC LIMIT ?", nAffected)
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if err != nil && err != sql.ErrNoRows {
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panic(err)
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}
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sort.Ints(oldIndices)
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// Update index
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newIndices = listIndex[:len(oldIndices)]
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stmtUpdateBookmark, err := tx.Preparex(`UPDATE bookmark SET id = ? WHERE id = ?`)
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checkError(err)
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stmtUpdateBookmarkTag, err := tx.Preparex(`UPDATE bookmark_tag SET bookmark_id = ? WHERE bookmark_id = ?`)
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checkError(err)
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stmtUpdateBookmarkContent, err := tx.Preparex(`UPDATE bookmark_content SET docid = ? WHERE docid = ?`)
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checkError(err)
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for i, oldIndex := range oldIndices {
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newIndex := newIndices[i]
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_, err = stmtUpdateBookmark.Exec(newIndex, oldIndex)
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checkError(err)
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_, err = stmtUpdateBookmarkTag.Exec(newIndex, oldIndex)
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checkError(err)
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_, err = stmtUpdateBookmarkContent.Exec(newIndex, oldIndex)
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checkError(err)
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}
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// Commit transaction
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err = tx.Commit()
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checkError(err)
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return oldIndices, newIndices, err
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}
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