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/*
Terminews is a terminal based (TUI) RSS feed manager.
Copyright (C) 2017 Alexandros Ntavelos, a[dot]ntavelos[at]gmail[dot]com
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package db
import (
"database/sql"
"fmt"
"net/url"
_ "github.com/mattn/go-sqlite3"
)
type Event struct {
Id int
Title string
Author string
Url string
Summary string
Published string
}
func GetEventSql() string {
return `
CREATE TABLE IF NOT EXISTS event(
Id INTEGER NOT NULL PRIMARY KEY ASC,
Title TEXT,
Author TEXT,
Url TEXT,
Summary TEXT,
Published TEXT
);`
}
func (tdb *TDB) GetEvents() ([]Event, error) {
sql_readall := `
SELECT Id, Title, Author, Url, Summary, Published FROM event
ORDER BY id DESC
`
rows, err := tdb.Query(sql_readall)
defer rows.Close()
if err != nil {
return nil, err
}
var result []Event
for rows.Next() {
e := Event{}
if err := rows.Scan(&e.Id, &e.Title, &e.Author, &e.Url, &e.Summary, &e.Published); err != nil {
return nil, err
}
result = append(result, e)
}
return result, nil
}
func (tdb *TDB) GetEventById(id int) (Event, error) {
sql_readone := `SELECT Id, Title, Author, Url, Summary, Published FROM event WHERE id = ?`
stmt, err := tdb.Prepare(sql_readone)
defer stmt.Close()
if err != nil {
return Event{}, err
}
var e Event
if err = stmt.QueryRow(id).Scan(&e.Id, &e.Title, &e.Author, &e.Url, &e.Summary, &e.Published); err != nil {
if err == sql.ErrNoRows {
return Event{}, NotFound(fmt.Sprintf("Event not found for id: %v", id))
}
return Event{}, err
}
return e, nil
}
func (tdb *TDB) AddEvent(e Event) error {
sql_additem := `
INSERT OR REPLACE INTO event(
Title,
Author,
Url,
Summary,
Published
) values(?, ?, ?, ?, ?)
`
stmt, err := tdb.Prepare(sql_additem)
defer stmt.Close()
if err != nil {
return err
}
if _, err = stmt.Exec(e.Title, e.Author, e.Url, e.Summary, e.Published); err != nil {
return err
}
return nil
}
func (tdb *TDB) DeleteEvent(id int) error {
if _, err := tdb.GetEventById(id); err != nil {
return NotFound(fmt.Sprintf("Event not found for id: %v", id))
}
sql_delete := `DELETE FROM event WHERE id = ?`
stmt, err := tdb.Prepare(sql_delete)
defer stmt.Close()
if err != nil {
return err
}
if _, err = stmt.Exec(id); err != nil {
return err
}
return nil
}
func (e Event) String() string {
return string(e.Title)
}
func (e Event) Host() string {
u, err := url.Parse(e.Url)
if err != nil {
return ""
}
return u.Hostname()
}
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