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package repositories
import (
"database/sql"
"github.com/pkg/errors"
"github.com/satori/go.uuid"
"repodiff/constants"
e "repodiff/entities"
"repodiff/mappers"
repoSQL "repodiff/persistence/sql"
"repodiff/utils"
)
type project struct {
db *sql.DB
target e.MappedDiffTarget
timestampGenerator func() e.RepoTimestamp
}
func (p project) InsertDiffRows(diffRows []e.AnalyzedDiffRow) error {
return errors.Wrap(
repoSQL.SingleTransactionInsert(
p.db,
`INSERT INTO project_differential (
upstream_target_id,
downstream_target_id,
timestamp,
uuid,
row_index,
downstream_project,
upstream_project,
status,
files_changed,
line_insertions,
line_deletions,
line_changes,
commits_not_upstreamed,
project_type
) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
mappers.PrependMappedDiffTarget(
p.target,
mappers.DiffRowsToPersistCols(diffRows, p.timestampGenerator()),
),
),
"Error inserting rows into project_differential",
)
}
func (p project) GetMostRecentOuterKey() (int64, uuid.UUID, error) {
var timestamp int64
var uuidBytes []byte
err := p.db.QueryRow(
`SELECT timestamp, uuid FROM project_differential WHERE upstream_target_id = ? AND downstream_target_id = ? AND timestamp=(
SELECT MAX(timestamp) FROM project_differential WHERE upstream_target_id = ? AND downstream_target_id = ?
) LIMIT 1`,
p.target.UpstreamTarget,
p.target.DownstreamTarget,
p.target.UpstreamTarget,
p.target.DownstreamTarget,
).Scan(
×tamp,
&uuidBytes,
)
if err != nil {
return 0, constants.NullUUID(), err
}
u, err := uuid.FromBytes(uuidBytes)
if err != nil {
return 0, constants.NullUUID(), errors.Wrap(err, "Error casting string to UUID")
}
return timestamp, u, nil
}
func (p project) GetMostRecentDifferentials() ([]e.AnalyzedDiffRow, error) {
timestamp, uid, err := p.GetMostRecentOuterKey()
if err == sql.ErrNoRows {
return nil, nil
}
if err != nil {
// TODO this doesn't handle empty case properly
return nil, err
}
var errMapping error
var diffRows []e.AnalyzedDiffRow
errSelect := repoSQL.Select(
p.db,
func(row *sql.Rows) {
if errMapping != nil {
return
}
d, err := mappers.SQLRowToDiffRow(row)
errMapping = err
diffRows = append(
diffRows,
d,
)
},
`SELECT
timestamp,
uuid,
row_index,
downstream_project,
upstream_project,
status,
files_changed,
line_insertions,
line_deletions,
line_changes,
commits_not_upstreamed,
project_type
FROM project_differential
WHERE
upstream_target_id = ?
AND downstream_target_id = ?
AND timestamp = ?
AND uuid = ?`,
p.target.UpstreamTarget,
p.target.DownstreamTarget,
timestamp,
string(uid.Bytes()),
)
if errSelect != nil {
return nil, errSelect
}
if errMapping != nil {
return nil, errMapping
}
return diffRows, nil
}
func NewProjectRepository(target e.MappedDiffTarget) (project, error) {
db, err := repoSQL.GetDBConnectionPool()
return project{
db: db,
target: target,
timestampGenerator: utils.TimestampSeconds,
}, errors.Wrap(err, "Could not establish a database connection")
}
|
