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Adds repository interface + MySQL implementation + tests. Closes #3
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| package repositories | ||
|
|
||
| import ( | ||
| "database/sql" | ||
|
|
||
| _ "github.com/go-sql-driver/mysql" | ||
|
|
||
| "github.com/ariel17/be-challenge-arios/pkg/models" | ||
| ) | ||
|
|
||
| func NewMySQLRepository() Repository { | ||
| return &mysqlRepository{} | ||
| } | ||
|
|
||
| type mysqlRepository struct { | ||
| db *sql.DB | ||
| } | ||
|
|
||
| func (m *mysqlRepository) Connect(dsn string) error { | ||
| db, err := sql.Open("mysql", dsn) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| m.db = db | ||
| return nil | ||
| } | ||
|
|
||
| func (m *mysqlRepository) Close() error { | ||
| if m.db != nil { | ||
| return m.db.Close() | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (m *mysqlRepository) AddPerson(person models.Person) error { | ||
| query := "INSERT INTO `persons` (`id`, `name`, `date_of_birth`, `nationality`) VALUES (?, ?, ?, ?)" | ||
| _, err := m.db.Exec(query, person.ID, person.Name, person.DateOfBirth, person.Nationality) | ||
| return err | ||
| } | ||
|
|
||
| func (m *mysqlRepository) AddTeam(team models.Team) error { | ||
| query := "INSERT INTO `teams` (`tla`, `name`, `short_name`, `area_name`, `address`) VALUES (?, ?, ?, ?, ?)" | ||
| _, err := m.db.Exec(query, team.TLA, team.Name, team.ShortName, team.AreaName, team.Address) | ||
| return err | ||
| } | ||
|
|
||
| func (m *mysqlRepository) AddCompetition(competition models.Competition) error { | ||
| query := "INSERT INTO `competitions` (`code`, `name`, `area_name`) VALUES (?, ?, ?)" | ||
| _, err := m.db.Exec(query, competition.Code, competition.Name, competition.AreaName) | ||
| return err | ||
| } | ||
|
|
||
| func (m *mysqlRepository) AddTeamToCompetition(team models.Team, competition models.Competition) error { | ||
| query := "INSERT INTO `competitions_teams` (`competition_code`, `team_tla`) VALUES (?, ?)" | ||
| _, err := m.db.Exec(query, competition.Code, team.TLA) | ||
| return err | ||
| } | ||
|
|
||
| func (m *mysqlRepository) AddPersonToTeam(person models.Person, team models.Team) error { | ||
| query := "INSERT INTO `teams_persons` (`team_tla`, `person_id`, `position`) VALUES (?, ?, ?)" | ||
| _, err := m.db.Exec(query, team.TLA, person.ID, person.Position) | ||
| return err | ||
| } | ||
|
|
||
| func (m *mysqlRepository) GetTeamByTLA(tla string) (*models.Team, error) { | ||
| query := "SELECT `name`, `short_name`, `area_name`, `address` FROM `teams` WHERE `tla` = ?" | ||
| result, err := m.db.Query(query, tla) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| defer result.Close() | ||
| if !result.Next() { | ||
| return nil, nil | ||
| } | ||
|
|
||
| team := models.Team{TLA: tla} | ||
| err = result.Scan(&team.Name, &team.ShortName, &team.AreaName, &team.Address) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &team, nil | ||
| } | ||
|
|
||
| func (m *mysqlRepository) GetPersonsByCompetitionCode(code string) ([]models.Person, error) { | ||
| query := "SELECT p.id, p.name, p.date_of_birth, p.nationality, tp.position " + | ||
| "FROM competitions c " + | ||
| "INNER JOIN competitions_teams ct ON (c.code=ct.competition_code) " + | ||
| "INNER JOIN teams t ON (ct.team_tla=t.tla) " + | ||
| "INNER JOIN teams_persons tp ON (t.tla=tp.team_tla) " + | ||
| "INNER JOIN persons p ON (tp.person_id=p.id) " + | ||
| "WHERE c.code = ?" | ||
| result, err := m.db.Query(query, code) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| defer result.Close() | ||
| persons := []models.Person{} | ||
| for result.Next() { | ||
| var ( | ||
| position sql.NullString | ||
| person models.Person | ||
| ) | ||
| err = result.Scan(&person.ID, &person.Name, &person.DateOfBirth, &person.Nationality, &position) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if position.Valid { | ||
| person.Position = &position.String | ||
| } | ||
| persons = append(persons, person) | ||
| } | ||
|
|
||
| return persons, nil | ||
| } | ||
|
|
||
| func (m *mysqlRepository) GetPersonsByTeamTLA(tla string) ([]models.Person, error) { | ||
| query := "SELECT p.id, p.name, p.date_of_birth, p.nationality, tp.position " + | ||
| "FROM teams t " + | ||
| "INNER JOIN teams_persons tp ON (t.tla=tp.team_tla) " + | ||
| "INNER JOIN persons p ON (tp.person_id=p.id) " + | ||
| "WHERE t.tla = ?" | ||
| result, err := m.db.Query(query, tla) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| defer result.Close() | ||
| persons := []models.Person{} | ||
| for result.Next() { | ||
| var ( | ||
| position sql.NullString | ||
| person models.Person | ||
| ) | ||
| err = result.Scan(&person.ID, &person.Name, &person.DateOfBirth, &person.Nationality, &position) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if position.Valid { | ||
| person.Position = &position.String | ||
| } | ||
| persons = append(persons, person) | ||
| } | ||
|
|
||
| return persons, nil | ||
| } |
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