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namespace.go
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namespace.go
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package common
import (
"context"
"database/sql"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
sq "github.com/Masterminds/squirrel"
errs "go.flipt.io/flipt/errors"
"go.flipt.io/flipt/internal/storage"
fliptsql "go.flipt.io/flipt/internal/storage/sql"
flipt "go.flipt.io/flipt/rpc/flipt"
)
func (s *Store) GetNamespace(ctx context.Context, p storage.NamespaceRequest) (*flipt.Namespace, error) {
var (
createdAt fliptsql.Timestamp
updatedAt fliptsql.Timestamp
namespace = &flipt.Namespace{}
err = s.builder.Select("\"key\", name, description, protected, created_at, updated_at").
From("namespaces").
Where(sq.Eq{"\"key\"": p.Namespace()}).
QueryRowContext(ctx).
Scan(
&namespace.Key,
&namespace.Name,
&namespace.Description,
&namespace.Protected,
&createdAt,
&updatedAt)
)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
return nil, errs.ErrNotFoundf("namespace %q", p)
}
return nil, err
}
namespace.CreatedAt = createdAt.Timestamp
namespace.UpdatedAt = updatedAt.Timestamp
return namespace, nil
}
func (s *Store) ListNamespaces(ctx context.Context, req *storage.ListRequest[storage.ReferenceRequest]) (storage.ResultSet[*flipt.Namespace], error) {
var (
namespaces []*flipt.Namespace
results = storage.ResultSet[*flipt.Namespace]{}
query = s.builder.Select("\"key\", name, description, protected, created_at, updated_at").
From("namespaces").
OrderBy(fmt.Sprintf("created_at %s", req.QueryParams.Order))
)
if req.QueryParams.Limit > 0 {
query = query.Limit(req.QueryParams.Limit + 1)
}
var offset uint64
if req.QueryParams.PageToken != "" {
token, err := decodePageToken(s.logger, req.QueryParams.PageToken)
if err != nil {
return results, err
}
offset = token.Offset
query = query.Offset(offset)
} else if req.QueryParams.Offset > 0 {
offset = req.QueryParams.Offset
query = query.Offset(offset)
}
rows, err := query.QueryContext(ctx)
if err != nil {
return results, err
}
defer func() {
if cerr := rows.Close(); cerr != nil && err == nil {
err = cerr
}
}()
for rows.Next() {
var (
namespace = &flipt.Namespace{}
createdAt fliptsql.Timestamp
updatedAt fliptsql.Timestamp
)
if err := rows.Scan(
&namespace.Key,
&namespace.Name,
&namespace.Description,
&namespace.Protected,
&createdAt,
&updatedAt,
); err != nil {
return results, err
}
namespace.CreatedAt = createdAt.Timestamp
namespace.UpdatedAt = updatedAt.Timestamp
namespaces = append(namespaces, namespace)
}
if err := rows.Err(); err != nil {
return results, err
}
if err := rows.Close(); err != nil {
return results, err
}
var next *flipt.Namespace
if len(namespaces) > int(req.QueryParams.Limit) && req.QueryParams.Limit > 0 {
next = namespaces[len(namespaces)-1]
namespaces = namespaces[:req.QueryParams.Limit]
}
results.Results = namespaces
if next != nil {
out, err := json.Marshal(PageToken{Key: next.Key, Offset: offset + uint64(len(namespaces))})
if err != nil {
return results, fmt.Errorf("encoding page token %w", err)
}
results.NextPageToken = base64.StdEncoding.EncodeToString(out)
}
return results, nil
}
func (s *Store) CountNamespaces(ctx context.Context, _ storage.ReferenceRequest) (uint64, error) {
var count uint64
if err := s.builder.Select("COUNT(*)").
From("namespaces").
QueryRowContext(ctx).
Scan(&count); err != nil {
return 0, err
}
return count, nil
}
func (s *Store) CreateNamespace(ctx context.Context, r *flipt.CreateNamespaceRequest) (*flipt.Namespace, error) {
var (
now = flipt.Now()
namespace = &flipt.Namespace{
Key: r.Key,
Name: r.Name,
Description: r.Description,
CreatedAt: now,
UpdatedAt: now,
}
)
if _, err := s.builder.Insert("namespaces").
Columns("\"key\"", "name", "description", "created_at", "updated_at").
Values(
namespace.Key,
namespace.Name,
namespace.Description,
&fliptsql.Timestamp{Timestamp: namespace.CreatedAt},
&fliptsql.Timestamp{Timestamp: namespace.UpdatedAt},
).
ExecContext(ctx); err != nil {
return nil, err
}
return namespace, nil
}
func (s *Store) UpdateNamespace(ctx context.Context, r *flipt.UpdateNamespaceRequest) (*flipt.Namespace, error) {
query := s.builder.Update("namespaces").
Set("name", r.Name).
Set("description", r.Description).
Set("updated_at", &fliptsql.Timestamp{Timestamp: flipt.Now()}).
Where(sq.Eq{"\"key\"": r.Key})
res, err := query.ExecContext(ctx)
if err != nil {
return nil, err
}
count, err := res.RowsAffected()
if err != nil {
return nil, err
}
p := storage.NewNamespace(r.Key)
if count != 1 {
return nil, errs.ErrNotFoundf("namespace %q", p)
}
return s.GetNamespace(ctx, p)
}
func (s *Store) DeleteNamespace(ctx context.Context, r *flipt.DeleteNamespaceRequest) error {
_, err := s.builder.Delete("namespaces").
Where(sq.Eq{"\"key\"": r.Key}).
ExecContext(ctx)
return err
}