forked from ozonmp/omp-demo-api
/
repository_package_crud.go
395 lines (308 loc) · 9.73 KB
/
repository_package_crud.go
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package repo
import (
"context"
"database/sql"
"encoding/json"
"errors"
"time"
"github.com/hablof/logistic-package-api/internal/model"
"github.com/hablof/logistic-package-api/internal/service"
sq "github.com/Masterminds/squirrel"
"github.com/opentracing/opentracing-go"
"github.com/rs/zerolog"
)
// const (
// DefaultLimit = 10
// )
// tables
const (
packageTable = "package"
eventTable = "package_event"
)
// package table column names
const (
packageIdCol = "package_id"
titleCol = "title"
materialCol = "material"
maxVolumeCol = "max_volume"
reusableCol = "reusable"
createdAtCol = "created_at"
updatedAtCol = "updated_at"
)
// package_event table column names
const (
// packageIdCol = "package_id" // same name as in package table
packageEventIdCol = "package_event_id"
eventTypeCol = "event_type"
eventStatusCol = "event_status"
payloadCol = "payload"
//createdAtCol = "created_at" // same name as in package table
)
type packageModelWithSqlNull struct {
ID uint64 `db:"package_id"`
Title string `db:"title"`
Material string `db:"material"`
MaximumVolume float32 `db:"max_volume"`
Reusable bool `db:"reusable"`
Created time.Time `db:"created_at"`
Updated sql.NullTime `db:"updated_at"`
}
// CreatePackage implements api.RepoCRUD
func (r *repository) CreatePackage(ctx context.Context, pack *model.Package, log zerolog.Logger) (uint64, error) {
repoSpan, ctx := opentracing.StartSpanFromContext(ctx, "repository.CreatePackage")
defer repoSpan.Finish()
log.Debug().Msgf("repository.CreatePackage has called with package title: %s", pack.Title)
crudQuery, crudArgs, err := r.initQuery.
Insert(packageTable).
Columns(titleCol, materialCol, maxVolumeCol, reusableCol, createdAtCol).
Values(pack.Title, pack.Material, pack.MaximumVolume, pack.Reusable, "now()").
Suffix("RETURNING package_id, created_at").
ToSql()
if err != nil {
return 0, err
}
tx, err := r.db.BeginTxx(ctx, nil)
if err != nil {
return 0, err
}
defer tx.Rollback()
log.Debug().Msgf("crud query: %s; args: %v", crudQuery, crudArgs)
returningID := uint64(0)
timestamp := time.Time{}
crudSpan, _ := opentracing.StartSpanFromContext(ctx, "crud query")
row := tx.QueryRowxContext(ctx, crudQuery, crudArgs...)
crudSpan.Finish()
if err := row.Scan(&returningID, ×tamp); err != nil {
return 0, err
}
unit := model.Package{
ID: returningID,
Title: pack.Title,
Material: pack.Material,
MaximumVolume: pack.MaximumVolume,
Reusable: pack.Reusable,
Created: timestamp,
Updated: nil,
}
jsonbytes, err := json.Marshal(unit)
if err != nil {
return 0, err
}
eventQuery, eventArgs, err := r.initQuery.
Insert(eventTable).
Columns(packageIdCol, eventTypeCol, payloadCol).
Values(returningID, "Created", jsonbytes).
ToSql()
if err != nil {
return 0, err
}
log.Debug().Msgf("event query: %s; args: %v", eventQuery, eventArgs)
eventSpan, _ := opentracing.StartSpanFromContext(ctx, "event query")
_, err = tx.ExecContext(ctx, eventQuery, eventArgs...)
eventSpan.Finish()
if err != nil {
return 0, err
}
if err := tx.Commit(); err != nil {
return 0, err
}
log.Debug().Msgf("repository.CreatePackage: package_id %d inserted", returningID)
return returningID, nil
}
// DescribePackage implements api.RepoCRUD
func (r *repository) DescribePackage(ctx context.Context, packageID uint64, log zerolog.Logger) (*model.Package, error) {
repoSpan, ctx := opentracing.StartSpanFromContext(ctx, "repository.DescribePackage")
defer repoSpan.Finish()
log.Debug().Msgf("repository.DescribePackage has called with ID: %d", packageID)
query, args, err := r.initQuery.
Select(packageIdCol, titleCol, materialCol, maxVolumeCol, reusableCol, createdAtCol, updatedAtCol).
From(packageTable).
Where(sq.Eq{packageIdCol: packageID}).
ToSql()
if err != nil {
return nil, err
}
log.Debug().Msgf("query: %s; args: %v", query, args)
crudSpan, _ := opentracing.StartSpanFromContext(ctx, "crud query")
row := r.db.QueryRowxContext(ctx, query, args...)
crudSpan.Finish()
scanUnit := packageModelWithSqlNull{}
switch err := row.StructScan(&scanUnit); {
case errors.Is(err, sql.ErrNoRows):
return nil, service.ErrRepoEntityNotFound
case err != nil:
return nil, err
}
unit := model.Package{
ID: scanUnit.ID,
Title: scanUnit.Title,
Material: scanUnit.Material,
MaximumVolume: scanUnit.MaximumVolume,
Reusable: scanUnit.Reusable,
Created: scanUnit.Created,
}
if scanUnit.Updated.Valid {
unit.Updated = &scanUnit.Updated.Time
} else {
unit.Updated = nil
}
log.Debug().Msgf("repository.DescribePackage: package_id %d has read", packageID)
return &unit, nil
}
// ListPackages implements api.RepoCRUD
func (r *repository) ListPackages(ctx context.Context, offset uint64, limit uint64, log zerolog.Logger) ([]model.Package, error) {
repoSpan, ctx := opentracing.StartSpanFromContext(ctx, "repository.ListPackages")
defer repoSpan.Finish()
repoSpan.SetTag("query offset", offset)
log.Debug().Msgf("repository.ListPackages has called with offset %d", offset)
query, args, err := r.initQuery.
Select(packageIdCol, titleCol, materialCol, maxVolumeCol, reusableCol, createdAtCol, updatedAtCol).
From(packageTable).
OrderBy(packageIdCol).
Limit(limit).
Offset(offset).
ToSql()
if err != nil {
return nil, err
}
log.Debug().Msgf("query: %s; args: %v", query, args)
crudSpan, _ := opentracing.StartSpanFromContext(ctx, "crud query")
rows, err := r.db.QueryxContext(ctx, query, args...)
crudSpan.Finish()
if err != nil {
return nil, err
}
defer rows.Close()
output := make([]model.Package, 0, limit)
for rows.Next() {
unit := model.Package{}
if err := rows.StructScan(&unit); err != nil {
return nil, err
}
output = append(output, unit)
}
if log.GetLevel() == zerolog.DebugLevel {
returningIDs := make([]uint64, 0, len(output))
for _, elem := range output {
returningIDs = append(returningIDs, elem.ID)
}
log.Debug().Msgf("repository.ListPackages: returns packages with IDs: %v", returningIDs)
}
return output, nil
}
// RemovePackage implements api.RepoCRUD
func (r *repository) RemovePackage(ctx context.Context, packageID uint64, log zerolog.Logger) error {
repoSpan, ctx := opentracing.StartSpanFromContext(ctx, "repository.RemovePackage")
defer repoSpan.Finish()
log.Debug().Msgf("repository.RemovePackage has called with ID: %d", packageID)
crudQuery, crudArgs, err := r.initQuery.
Delete(packageTable).
Where(sq.Eq{packageIdCol: packageID}).
ToSql()
if err != nil {
return err
}
eventQuery, eventArgs, err := r.initQuery.
Insert(eventTable).
Columns(packageIdCol, eventTypeCol).
Values(packageID, "Removed").
ToSql()
if err != nil {
return err
}
tx, err := r.db.BeginTxx(ctx, nil)
if err != nil {
return err
}
defer tx.Rollback()
log.Debug().Msgf("crud query: %s; args: %v", crudQuery, crudArgs)
crudSpan, _ := opentracing.StartSpanFromContext(ctx, "crud query")
result, err := tx.ExecContext(ctx, crudQuery, crudArgs...)
crudSpan.Finish()
if err != nil {
return err
}
// fetch rowsAffected to ensure that a least 1 entity was deleted
rowsAffected, err := result.RowsAffected()
if err != nil {
return err
}
if rowsAffected == 0 {
log.Debug().Msgf("package with id %d not found", packageID)
return service.ErrRepoEntityNotFound
}
log.Debug().Msgf("event query: %s; args: %v", eventQuery, eventArgs)
eventSpan, _ := opentracing.StartSpanFromContext(ctx, "event query")
_, err = tx.ExecContext(ctx, eventQuery, eventArgs...)
eventSpan.Finish()
if err != nil {
return err
}
if err := tx.Commit(); err != nil {
return err
}
log.Debug().Msgf("repository.RemovePackage: removed package with ID: %d", packageID)
return nil
}
// UpdatePackage implements api.RepoCRUD
func (r *repository) UpdatePackage(ctx context.Context, packageID uint64, changes map[service.FieldName]interface{}, log zerolog.Logger) error {
repoSpan, ctx := opentracing.StartSpanFromContext(ctx, "repository.UpdatePackage")
defer repoSpan.Finish()
ub := r.initQuery.Update(packageTable).Set(updatedAtCol, "now()")
for key, value := range changes {
switch key {
case service.Title:
ub = ub.Set(titleCol, value)
case service.Material:
ub = ub.Set(materialCol, value)
case service.MaxVolume:
ub = ub.Set(maxVolumeCol, value)
case service.Reusable:
ub = ub.Set(reusableCol, value)
}
}
crudQuery, crudArgs, err := ub.Where(sq.Eq{packageIdCol: packageID}).
Suffix("RETURNING package_id, title, material, max_volume, reusable, created_at, updated_at").
ToSql()
if err != nil {
return err
}
tx, err := r.db.BeginTxx(ctx, nil)
if err != nil {
return err
}
defer tx.Rollback()
log.Debug().Msgf("crud query: %s; args: %v", crudQuery, crudArgs)
scanUnit := packageModelWithSqlNull{}
// unit := model.Package{}
crudSpan, _ := opentracing.StartSpanFromContext(ctx, "crud query")
row := tx.QueryRowxContext(ctx, crudQuery, crudArgs...)
crudSpan.Finish()
if err := row.StructScan(&scanUnit); err != nil {
return err
}
payload, err := json.Marshal(scanUnit)
if err != nil {
return err
}
eventQuery, eventArgs, err := r.initQuery.
Insert(eventTable).
Columns(packageIdCol, eventTypeCol, payloadCol).
Values(packageID, "Updated", payload).
ToSql()
if err != nil {
return err
}
log.Debug().Msgf("event query: %s; args: %v", eventQuery, eventArgs)
eventSpan, _ := opentracing.StartSpanFromContext(ctx, "event query")
_, err = tx.ExecContext(ctx, eventQuery, eventArgs...)
eventSpan.Finish()
if err != nil {
return err
}
if err := tx.Commit(); err != nil {
return err
}
log.Debug().Msgf("repository.UpdatePackage: package_id %d updated", packageID)
return nil
}