99 lines
2.8 KiB
Go
99 lines
2.8 KiB
Go
package fic
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import ()
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// Theme represents a group of challenges, to display to players
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type Theme struct {
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Id int64 `json:"id"`
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Name string `json:"name"`
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URLId string `json:"urlid"`
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Authors string `json:"authors,omitempty"`
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Intro string `json:"intro,omitempty"`
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}
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// GetThemes returns a list of registered Themes from the database.
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func GetThemes() ([]Theme, error) {
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if rows, err := DBQuery("SELECT id_theme, name, url_id, authors, intro FROM themes"); err != nil {
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return nil, err
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} else {
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defer rows.Close()
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var themes = make([]Theme, 0)
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for rows.Next() {
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var t Theme
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if err := rows.Scan(&t.Id, &t.Name, &t.URLId, &t.Authors, &t.Intro); err != nil {
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return nil, err
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}
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themes = append(themes, t)
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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 themes, nil
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}
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}
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// GetTheme retrieves a Theme from its identifier.
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func GetTheme(id int) (Theme, error) {
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var t Theme
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if err := DBQueryRow("SELECT id_theme, name, url_id, authors, intro FROM themes WHERE id_theme=?", id).Scan(&t.Id, &t.Name, &t.URLId, &t.Authors, &t.Intro); err != nil {
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return t, err
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}
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return t, nil
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}
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// GetThemeByName retrieves a Theme from its title
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func GetThemeByName(name string) (Theme, error) {
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var t Theme
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if err := DBQueryRow("SELECT id_theme, name, url_id, authors, intro FROM themes WHERE name=?", name).Scan(&t.Id, &t.Name, &t.URLId, &t.Authors, &t.Intro); err != nil {
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return t, err
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}
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return t, nil
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}
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// CreateTheme creates and fills a new struct Theme and registers it into the database.
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func CreateTheme(name string, url_id string, authors string, intro string) (Theme, error) {
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if res, err := DBExec("INSERT INTO themes (name, url_id, authors, intro) VALUES (?, ?, ?, ?)", name, url_id, authors, intro); err != nil {
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return Theme{}, err
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} else if tid, err := res.LastInsertId(); err != nil {
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return Theme{}, err
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} else {
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return Theme{tid, name, url_id, authors, intro}, nil
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}
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}
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// FixURLId generates a valid URLid from the Theme Title.
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// It returns true if something has been generated.
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func (t *Theme) FixURLId() bool {
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if t.URLId == "" {
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t.URLId = ToURLid(t.Name)
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return true
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}
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return false
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}
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// Update applies modifications back to the database.
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func (t Theme) Update() (int64, error) {
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if res, err := DBExec("UPDATE themes SET name = ?, url_id = ?, authors = ?, intro = ? WHERE id_theme = ?", t.Name, t.URLId, t.Authors, t.Intro, t.Id); err != nil {
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return 0, err
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} else if nb, err := res.RowsAffected(); err != nil {
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return 0, err
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} else {
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return nb, err
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}
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}
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// Delete the theme from the database.
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func (t Theme) Delete() (int64, error) {
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if res, err := DBExec("DELETE FROM themes WHERE id_theme = ?", t.Id); err != nil {
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return 0, err
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} else if nb, err := res.RowsAffected(); err != nil {
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return 0, err
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} else {
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return nb, err
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}
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}
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