mirror of https://github.com/fmartingr/shiori.git
Initial PostgreSQL support
This commit is contained in:
parent
752d1ba4f6
commit
4eb86d60d7
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@ -17,7 +17,7 @@ Shiori is a simple bookmarks manager written in Go language. Intended as a simpl
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- Simple and clean command line interface.
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- Simple and clean command line interface.
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- Simple and pretty web interface for those who don't want to use a command line app.
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- Simple and pretty web interface for those who don't want to use a command line app.
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- Portable, thanks to its single binary format.
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- Portable, thanks to its single binary format.
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- Support sqlite3 and MySQL as its database.
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- Support sqlite3, PostgreSQL and MySQL as its database.
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- Where possible, by default `shiori` will parse the readable content and create an offline archive of the webpage.
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- Where possible, by default `shiori` will parse the readable content and create an offline archive of the webpage.
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- [BETA] [web extension](https://github.com/go-shiori/shiori-web-ext) support for Firefox and Chrome.
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- [BETA] [web extension](https://github.com/go-shiori/shiori-web-ext) support for Firefox and Chrome.
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2
go.mod
2
go.mod
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@ -11,7 +11,7 @@ require (
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github.com/gofrs/uuid v3.2.0+incompatible
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github.com/gofrs/uuid v3.2.0+incompatible
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github.com/jmoiron/sqlx v1.2.0
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github.com/jmoiron/sqlx v1.2.0
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github.com/julienschmidt/httprouter v1.2.0
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github.com/julienschmidt/httprouter v1.2.0
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github.com/lib/pq v1.1.1 // indirect
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github.com/lib/pq v1.1.1
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github.com/mattn/go-colorable v0.1.1 // indirect
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github.com/mattn/go-colorable v0.1.1 // indirect
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github.com/mattn/go-isatty v0.0.7 // indirect
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github.com/mattn/go-isatty v0.0.7 // indirect
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github.com/mattn/go-sqlite3 v1.10.0
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github.com/mattn/go-sqlite3 v1.10.0
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@ -111,7 +111,17 @@ func openDatabase() (database.DB, error) {
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connString := fmt.Sprintf("%s:%s@%s/%s", user, password, dbAddress, dbName)
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connString := fmt.Sprintf("%s:%s@%s/%s", user, password, dbAddress, dbName)
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return database.OpenMySQLDatabase(connString)
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return database.OpenMySQLDatabase(connString)
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}
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}
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// Check if it uses PostgreSQL
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if dbms, _ := os.LookupEnv("SHIORI_DBMS"); dbms == "postgresql" {
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host, _ := os.LookupEnv("SHIORI_PG_HOST")
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port, _ := os.LookupEnv("SHIORI_PG_PORT")
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user, _ := os.LookupEnv("SHIORI_PG_USER")
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password, _ := os.LookupEnv("SHIORI_PG_PASS")
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dbName, _ := os.LookupEnv("SHIORI_PG_NAME")
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connString := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=disable", host, port, user, password, dbName)
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return database.OpenPGDatabase(connString)
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}
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// If not, just uses SQLite
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// If not, just uses SQLite
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dbPath := fp.Join(dataDir, "shiori.db")
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dbPath := fp.Join(dataDir, "shiori.db")
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return database.OpenSQLiteDatabase(dbPath)
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return database.OpenSQLiteDatabase(dbPath)
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@ -0,0 +1,641 @@
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package database
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import (
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"database/sql"
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"fmt"
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"strings"
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"time"
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"github.com/go-shiori/shiori/internal/model"
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"github.com/jmoiron/sqlx"
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"golang.org/x/crypto/bcrypt"
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)
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// PGDatabase is implementation of Database interface
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// for connecting to PostgreSQL database.
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type PGDatabase struct {
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sqlx.DB
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}
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// OpenPGDatabase creates and opens connection to a PostgreSQL Database.
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func OpenPGDatabase(connString string) (pgDB *PGDatabase, err error) {
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// Open database and start transaction
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db := sqlx.MustConnect("postgres", connString)
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db.SetMaxOpenConns(100)
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tx, err := db.Beginx()
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if err != nil {
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return nil, 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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pgDB = nil
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err = panicErr
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}
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}()
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// Create tables
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tx.MustExec(`CREATE TABLE IF NOT EXISTS account(
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id SERIAL,
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username VARCHAR(250) NOT NULL,
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password BYTEA NOT NULL,
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owner BOOLEAN NOT NULL DEFAULT FALSE,
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PRIMARY KEY (id),
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CONSTRAINT account_username_UNIQUE UNIQUE (username))`)
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tx.MustExec(`CREATE TABLE IF NOT EXISTS bookmark(
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id SERIAL,
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url TEXT NOT NULL,
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title TEXT NOT NULL,
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excerpt TEXT NOT NULL DEFAULT '',
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author TEXT NOT NULL DEFAULT '',
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public SMALLINT NOT NULL DEFAULT 0,
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content TEXT NOT NULL DEFAULT '',
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html TEXT NOT NULL DEFAULT '',
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modified TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY(id),
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CONSTRAINT bookmark_url_UNIQUE UNIQUE (url))`)
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tx.MustExec(`CREATE TABLE IF NOT EXISTS tag(
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id SERIAL,
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name VARCHAR(250) NOT NULL,
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PRIMARY KEY (id),
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CONSTRAINT tag_name_UNIQUE UNIQUE (name))`)
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tx.MustExec(`CREATE TABLE IF NOT EXISTS bookmark_tag(
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bookmark_id INT NOT NULL,
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tag_id INT NOT NULL,
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PRIMARY KEY(bookmark_id, tag_id),
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CONSTRAINT bookmark_tag_bookmark_id_FK FOREIGN KEY (bookmark_id) REFERENCES bookmark (id),
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CONSTRAINT bookmark_tag_tag_id_FK FOREIGN KEY (tag_id) REFERENCES tag (id))`)
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tx.MustExec(`CREATE INDEX IF NOT EXISTS bookmark_tag_bookmark_id_FK ON bookmark_tag (bookmark_id)`)
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tx.MustExec(`CREATE INDEX IF NOT EXISTS bookmark_tag_tag_id_FK ON bookmark_tag (tag_id)`)
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err = tx.Commit()
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checkError(err)
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pgDB = &PGDatabase{*db}
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return pgDB, err
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}
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// SaveBookmarks saves new or updated bookmarks to database.
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// Returns the saved ID and error message if any happened.
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func (db *PGDatabase) SaveBookmarks(bookmarks ...model.Bookmark) (result []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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result = []model.Bookmark{}
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err = panicErr
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}
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}()
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// Prepare statement
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stmtInsertBook, err := tx.Preparex(`INSERT INTO bookmark
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(url, title, excerpt, author, public, content, html, modified)
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VALUES($1, $2, $3, $4, $5, $6, $7, $8)
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ON CONFLICT(url) DO UPDATE SET
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url = $1,
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title = $2,
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excerpt = $3,
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author = $4,
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public = $5,
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content = $6,
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html = $7,
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modified = $8`)
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checkError(err)
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stmtGetTag, err := tx.Preparex(`SELECT id FROM tag WHERE name = $1`)
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checkError(err)
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stmtInsertTag, err := tx.Preparex(`INSERT INTO tag (name) VALUES ($1) RETURNING id`)
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checkError(err)
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stmtInsertBookTag, err := tx.Preparex(`INSERT INTO bookmark_tag
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(tag_id, bookmark_id) VALUES ($1, $2) ON CONFLICT DO NOTHING`)
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checkError(err)
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stmtDeleteBookTag, err := tx.Preparex(`DELETE FROM bookmark_tag
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WHERE bookmark_id = $1 AND tag_id = $2`)
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checkError(err)
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// Prepare modified time
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modifiedTime := time.Now().UTC().Format("2006-01-02 15:04:05")
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// Execute statements
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result = []model.Bookmark{}
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for _, book := range bookmarks {
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// Check ID, URL and title
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if book.ID == 0 {
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panic(fmt.Errorf("ID must not be empty"))
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}
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if book.URL == "" {
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panic(fmt.Errorf("URL must not be empty"))
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}
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if book.Title == "" {
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panic(fmt.Errorf("title must not be empty"))
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}
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// Set modified time
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book.Modified = modifiedTime
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// Save bookmark
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stmtInsertBook.MustExec(
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book.URL, book.Title, book.Excerpt, book.Author,
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book.Public, book.Content, book.HTML, book.Modified)
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// Save book tags
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newTags := []model.Tag{}
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for _, tag := range book.Tags {
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// If it's deleted tag, delete and continue
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if tag.Deleted {
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stmtDeleteBookTag.MustExec(book.ID, tag.ID)
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continue
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}
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// Normalize tag name
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tagName := strings.ToLower(tag.Name)
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tagName = strings.Join(strings.Fields(tagName), " ")
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// If tag doesn't have any ID, fetch it from database
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if tag.ID == 0 {
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err = stmtGetTag.Get(&tag.ID, tagName)
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checkError(err)
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// If tag doesn't exist in database, save it
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if tag.ID == 0 {
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var tagID64 int64
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err = stmtInsertTag.Get(&tagID64, tagName)
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checkError(err)
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tag.ID = int(tagID64)
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}
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stmtInsertBookTag.Exec(tag.ID, book.ID)
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}
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newTags = append(newTags, tag)
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}
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book.Tags = newTags
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result = append(result, book)
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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, err
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}
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// GetBookmarks fetch list of bookmarks based on submitted options.
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func (db *PGDatabase) GetBookmarks(opts GetBookmarksOptions) ([]model.Bookmark, error) {
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// Create initial query
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columns := []string{
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`id`,
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`url`,
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`title`,
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`excerpt`,
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`author`,
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`public`,
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`modified`,
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`content <> '' has_content`}
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if opts.WithContent {
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columns = append(columns, `content`, `html`)
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}
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query := `SELECT ` + strings.Join(columns, ",") + `
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FROM bookmark WHERE TRUE`
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// Add where clause
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arg := map[string]interface{}{}
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// Add where clause for IDs
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if len(opts.IDs) > 0 {
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query += ` AND id IN (:ids)`
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arg["ids"] = opts.IDs
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}
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// Add where clause for search keyword
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if opts.Keyword != "" {
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query += ` AND (
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url LIKE :lkw OR
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MATCH(title, excerpt, content) AGAINST (:kw IN BOOLEAN MODE)
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)`
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arg["lkw"] = "%"+opts.Keyword+"%"
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arg["kw"] = opts.Keyword
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}
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// Add where clause for tags.
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// First we check for * in excluded and included tags,
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// which means all tags will be excluded and included, respectively.
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excludeAllTags := false
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for _, excludedTag := range opts.ExcludedTags {
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if excludedTag == "*" {
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excludeAllTags = true
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opts.ExcludedTags = []string{}
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break
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}
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}
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includeAllTags := false
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for _, includedTag := range opts.Tags {
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if includedTag == "*" {
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includeAllTags = true
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opts.Tags = []string{}
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break
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}
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}
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// If all tags excluded, we will only show bookmark without tags.
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// In other hand, if all tags included, we will only show bookmark with tags.
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if excludeAllTags {
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query += ` AND id NOT IN (SELECT DISTINCT bookmark_id FROM bookmark_tag)`
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} else if includeAllTags {
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query += ` AND id IN (SELECT DISTINCT bookmark_id FROM bookmark_tag)`
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}
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// Now we only need to find the normal tags
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if len(opts.Tags) > 0 {
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query += ` AND id IN (
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SELECT bt.bookmark_id
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FROM bookmark_tag bt
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LEFT JOIN tag t ON bt.tag_id = t.id
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WHERE t.name IN(:tags)
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GROUP BY bt.bookmark_id
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HAVING COUNT(bt.bookmark_id) = :ltags)`
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arg["tags"] = opts.Tags
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arg["ltags"] = len(opts.Tags)
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}
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if len(opts.ExcludedTags) > 0 {
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query += ` AND id NOT IN (
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SELECT DISTINCT bt.bookmark_id
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FROM bookmark_tag bt
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LEFT JOIN tag t ON bt.tag_id = t.id
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WHERE t.name IN(:extags))`
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arg["extags"] = opts.ExcludedTags
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}
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// Add order clause
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switch opts.OrderMethod {
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case ByLastAdded:
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query += ` ORDER BY id DESC`
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case ByLastModified:
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query += ` ORDER BY modified DESC`
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default:
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query += ` ORDER BY id`
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}
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if opts.Limit > 0 && opts.Offset >= 0 {
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query += ` LIMIT :limit OFFSET :offset`
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arg["limit"] = opts.Limit
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arg["offset"] = opts.Offset
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}
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// Expand query, because some of the args might be an array
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query, args, err := sqlx.Named(query, arg)
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query, args, err = sqlx.In(query, args...)
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if err != nil {
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return nil, fmt.Errorf("failed to expand query: %v", err)
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}
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query = db.Rebind(query)
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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, fmt.Errorf("failed to fetch data: %v", 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
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LEFT JOIN tag t ON bt.tag_id = t.id
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WHERE bt.bookmark_id = $1
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ORDER BY t.name`)
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if err != nil {
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return nil, fmt.Errorf("failed to prepare tag query: %v", err)
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}
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defer stmtGetTags.Close()
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||||||
|
for i, book := range bookmarks {
|
||||||
|
book.Tags = []model.Tag{}
|
||||||
|
err = stmtGetTags.Select(&book.Tags, book.ID)
|
||||||
|
if err != nil && err != sql.ErrNoRows {
|
||||||
|
return nil, fmt.Errorf("failed to fetch tags: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
bookmarks[i] = book
|
||||||
|
}
|
||||||
|
|
||||||
|
return bookmarks, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// GetBookmarksCount fetch count of bookmarks based on submitted options.
|
||||||
|
func (db *PGDatabase) GetBookmarksCount(opts GetBookmarksOptions) (int, error) {
|
||||||
|
// Create initial query
|
||||||
|
query := `SELECT COUNT(id) FROM bookmark WHERE TRUE`
|
||||||
|
|
||||||
|
arg := map[string]interface{}{}
|
||||||
|
|
||||||
|
// Add where clause for IDs
|
||||||
|
if len(opts.IDs) > 0 {
|
||||||
|
query += ` AND id IN (:ids)`
|
||||||
|
arg["ids"] = opts.IDs
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add where clause for search keyword
|
||||||
|
if opts.Keyword != "" {
|
||||||
|
query += ` AND (
|
||||||
|
url LIKE :lurl OR
|
||||||
|
MATCH(title, excerpt, content) AGAINST (:kw IN BOOLEAN MODE)
|
||||||
|
)`
|
||||||
|
|
||||||
|
arg["lurl"] = "%"+opts.Keyword+"%"
|
||||||
|
arg["kw"] = opts.Keyword
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add where clause for tags.
|
||||||
|
// First we check for * in excluded and included tags,
|
||||||
|
// which means all tags will be excluded and included, respectively.
|
||||||
|
excludeAllTags := false
|
||||||
|
for _, excludedTag := range opts.ExcludedTags {
|
||||||
|
if excludedTag == "*" {
|
||||||
|
excludeAllTags = true
|
||||||
|
opts.ExcludedTags = []string{}
|
||||||
|
break
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
includeAllTags := false
|
||||||
|
for _, includedTag := range opts.Tags {
|
||||||
|
if includedTag == "*" {
|
||||||
|
includeAllTags = true
|
||||||
|
opts.Tags = []string{}
|
||||||
|
break
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// If all tags excluded, we will only show bookmark without tags.
|
||||||
|
// In other hand, if all tags included, we will only show bookmark with tags.
|
||||||
|
if excludeAllTags {
|
||||||
|
query += ` AND id NOT IN (SELECT DISTINCT bookmark_id FROM bookmark_tag)`
|
||||||
|
} else if includeAllTags {
|
||||||
|
query += ` AND id IN (SELECT DISTINCT bookmark_id FROM bookmark_tag)`
|
||||||
|
}
|
||||||
|
|
||||||
|
// Now we only need to find the normal tags
|
||||||
|
if len(opts.Tags) > 0 {
|
||||||
|
query += ` AND id IN (
|
||||||
|
SELECT bt.bookmark_id
|
||||||
|
FROM bookmark_tag bt
|
||||||
|
LEFT JOIN tag t ON bt.tag_id = t.id
|
||||||
|
WHERE t.name IN(:tags)
|
||||||
|
GROUP BY bt.bookmark_id
|
||||||
|
HAVING COUNT(bt.bookmark_id) = :ltags)`
|
||||||
|
|
||||||
|
arg["tags"] = opts.Tags
|
||||||
|
arg["ltags"] = len(opts.Tags)
|
||||||
|
}
|
||||||
|
|
||||||
|
if len(opts.ExcludedTags) > 0 {
|
||||||
|
query += ` AND id NOT IN (
|
||||||
|
SELECT DISTINCT bt.bookmark_id
|
||||||
|
FROM bookmark_tag bt
|
||||||
|
LEFT JOIN tag t ON bt.tag_id = t.id
|
||||||
|
WHERE t.name IN(:etags))`
|
||||||
|
|
||||||
|
arg["etags"] = opts.ExcludedTags
|
||||||
|
}
|
||||||
|
|
||||||
|
// Expand query, because some of the args might be an array
|
||||||
|
query, args, err := sqlx.Named(query, arg)
|
||||||
|
query, args, err = sqlx.In(query, args...)
|
||||||
|
if err != nil {
|
||||||
|
return 0, fmt.Errorf("failed to expand query: %v", err)
|
||||||
|
}
|
||||||
|
query = db.Rebind(query)
|
||||||
|
|
||||||
|
// Fetch count
|
||||||
|
var nBookmarks int
|
||||||
|
err = db.Get(&nBookmarks, query, args...)
|
||||||
|
if err != nil && err != sql.ErrNoRows {
|
||||||
|
return 0, fmt.Errorf("failed to fetch count: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return nBookmarks, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// DeleteBookmarks removes all record with matching ids from database.
|
||||||
|
func (db *PGDatabase) DeleteBookmarks(ids ...int) (err error) {
|
||||||
|
// Begin transaction
|
||||||
|
tx, err := db.Beginx()
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Make sure to rollback if panic ever happened
|
||||||
|
defer func() {
|
||||||
|
if r := recover(); r != nil {
|
||||||
|
panicErr, _ := r.(error)
|
||||||
|
tx.Rollback()
|
||||||
|
|
||||||
|
err = panicErr
|
||||||
|
}
|
||||||
|
}()
|
||||||
|
|
||||||
|
// Prepare queries
|
||||||
|
delBookmark := `DELETE FROM bookmark`
|
||||||
|
delBookmarkTag := `DELETE FROM bookmark_tag`
|
||||||
|
|
||||||
|
// Delete bookmark(s)
|
||||||
|
if len(ids) == 0 {
|
||||||
|
tx.MustExec(delBookmarkTag)
|
||||||
|
tx.MustExec(delBookmark)
|
||||||
|
} else {
|
||||||
|
delBookmark += ` WHERE id = $1`
|
||||||
|
delBookmarkTag += ` WHERE bookmark_id = $1`
|
||||||
|
|
||||||
|
stmtDelBookmark, _ := tx.Preparex(delBookmark)
|
||||||
|
stmtDelBookmarkTag, _ := tx.Preparex(delBookmarkTag)
|
||||||
|
|
||||||
|
for _, id := range ids {
|
||||||
|
stmtDelBookmarkTag.MustExec(id)
|
||||||
|
stmtDelBookmark.MustExec(id)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Commit transaction
|
||||||
|
err = tx.Commit()
|
||||||
|
checkError(err)
|
||||||
|
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// GetBookmark fetchs bookmark based on its ID or URL.
|
||||||
|
// Returns the bookmark and boolean whether it's exist or not.
|
||||||
|
func (db *PGDatabase) GetBookmark(id int, url string) (model.Bookmark, bool) {
|
||||||
|
args := []interface{}{id}
|
||||||
|
query := `SELECT
|
||||||
|
id, url, title, excerpt, author, public,
|
||||||
|
content, html, modified, content <> "" has_content
|
||||||
|
FROM bookmark WHERE id = $1`
|
||||||
|
|
||||||
|
if url != "" {
|
||||||
|
query += ` OR url = $2`
|
||||||
|
args = append(args, url)
|
||||||
|
}
|
||||||
|
|
||||||
|
book := model.Bookmark{}
|
||||||
|
db.Get(&book, query, args...)
|
||||||
|
|
||||||
|
return book, book.ID != 0
|
||||||
|
}
|
||||||
|
|
||||||
|
// SaveAccount saves new account to database. Returns error if any happened.
|
||||||
|
func (db *PGDatabase) SaveAccount(account model.Account) (err error) {
|
||||||
|
// Hash password with bcrypt
|
||||||
|
hashedPassword, err := bcrypt.GenerateFromPassword([]byte(account.Password), 10)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Insert account to database
|
||||||
|
_, err = db.Exec(`INSERT INTO account
|
||||||
|
(username, password, owner) VALUES ($1, $2, $3)
|
||||||
|
ON CONFLICT(username) DO UPDATE SET
|
||||||
|
password = $2,
|
||||||
|
owner = $3`,
|
||||||
|
account.Username, hashedPassword, account.Owner)
|
||||||
|
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// GetAccounts fetch list of account (without its password) based on submitted options.
|
||||||
|
func (db *PGDatabase) GetAccounts(opts GetAccountsOptions) ([]model.Account, error) {
|
||||||
|
// Create query
|
||||||
|
args := []interface{}{}
|
||||||
|
query := `SELECT id, username, owner FROM account WHERE TRUE`
|
||||||
|
|
||||||
|
if opts.Keyword != "" {
|
||||||
|
query += " AND username LIKE $1"
|
||||||
|
args = append(args, "%"+opts.Keyword+"%")
|
||||||
|
}
|
||||||
|
|
||||||
|
if opts.Owner {
|
||||||
|
query += " AND owner = TRUE"
|
||||||
|
}
|
||||||
|
|
||||||
|
query += ` ORDER BY username`
|
||||||
|
|
||||||
|
// Fetch list account
|
||||||
|
accounts := []model.Account{}
|
||||||
|
err := db.Select(&accounts, query, args...)
|
||||||
|
if err != nil && err != sql.ErrNoRows {
|
||||||
|
return nil, fmt.Errorf("failed to fetch accounts: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return accounts, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// GetAccount fetch account with matching username.
|
||||||
|
// Returns the account and boolean whether it's exist or not.
|
||||||
|
func (db *PGDatabase) GetAccount(username string) (model.Account, bool) {
|
||||||
|
account := model.Account{}
|
||||||
|
err := db.Get(&account, `SELECT
|
||||||
|
id, username, password, owner FROM account WHERE username = $1`,
|
||||||
|
username)
|
||||||
|
if err != nil {
|
||||||
|
fmt.Errorf("failed to fetch account: %v", err)
|
||||||
|
return account, false
|
||||||
|
}
|
||||||
|
return account, account.ID != 0
|
||||||
|
}
|
||||||
|
|
||||||
|
// DeleteAccounts removes all record with matching usernames.
|
||||||
|
func (db *PGDatabase) DeleteAccounts(usernames ...string) (err error) {
|
||||||
|
// Begin transaction
|
||||||
|
tx, err := db.Beginx()
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Make sure to rollback if panic ever happened
|
||||||
|
defer func() {
|
||||||
|
if r := recover(); r != nil {
|
||||||
|
panicErr, _ := r.(error)
|
||||||
|
tx.Rollback()
|
||||||
|
|
||||||
|
err = panicErr
|
||||||
|
}
|
||||||
|
}()
|
||||||
|
|
||||||
|
// Delete account
|
||||||
|
stmtDelete, _ := tx.Preparex(`DELETE FROM account WHERE username = $1`)
|
||||||
|
for _, username := range usernames {
|
||||||
|
stmtDelete.MustExec(username)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Commit transaction
|
||||||
|
err = tx.Commit()
|
||||||
|
checkError(err)
|
||||||
|
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// GetTags fetch list of tags and their frequency.
|
||||||
|
func (db *PGDatabase) GetTags() ([]model.Tag, error) {
|
||||||
|
tags := []model.Tag{}
|
||||||
|
query := `SELECT bt.tag_id id, t.name, COUNT(bt.tag_id) n_bookmarks
|
||||||
|
FROM bookmark_tag bt
|
||||||
|
LEFT JOIN tag t ON bt.tag_id = t.id
|
||||||
|
GROUP BY bt.tag_id, t.name ORDER BY t.name`
|
||||||
|
|
||||||
|
err := db.Select(&tags, query)
|
||||||
|
if err != nil && err != sql.ErrNoRows {
|
||||||
|
return nil, fmt.Errorf("failed to fetch tags: %v", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return tags, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// RenameTag change the name of a tag.
|
||||||
|
func (db *PGDatabase) RenameTag(id int, newName string) error {
|
||||||
|
_, err := db.Exec(`UPDATE tag SET name = $1 WHERE id = $2`, newName, id)
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
|
||||||
|
// CreateNewID creates new ID for specified table
|
||||||
|
func (db *PGDatabase) CreateNewID(table string) (int, error) {
|
||||||
|
var tableID int
|
||||||
|
query := fmt.Sprintf(`SELECT last_value from %s_id_seq;`, table)
|
||||||
|
|
||||||
|
err := db.Get(&tableID, query)
|
||||||
|
if err != nil && err != sql.ErrNoRows {
|
||||||
|
return -1, err
|
||||||
|
}
|
||||||
|
|
||||||
|
return tableID, nil
|
||||||
|
}
|
1
main.go
1
main.go
|
@ -8,6 +8,7 @@ import (
|
||||||
|
|
||||||
// Database driver
|
// Database driver
|
||||||
_ "github.com/go-sql-driver/mysql"
|
_ "github.com/go-sql-driver/mysql"
|
||||||
|
_ "github.com/lib/pq"
|
||||||
_ "github.com/mattn/go-sqlite3"
|
_ "github.com/mattn/go-sqlite3"
|
||||||
|
|
||||||
// Add this to prevent it removed by go mod tidy
|
// Add this to prevent it removed by go mod tidy
|
||||||
|
|
Loading…
Reference in New Issue