mirror of
https://github.com/ent/ent.git
synced 2026-05-24 09:31:56 +03:00
entc/gen: move selectbuilder scan functions to shared struct (#2412)
This commit is contained in:
Ariel Mashraki
GitHub
@@ -7,6 +7,7 @@
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package ent
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import (
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"context"
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"errors"
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"fmt"
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@@ -261,3 +262,205 @@ func IsConstraintError(err error) bool {
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var e *ConstraintError
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return errors.As(err, &e)
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}
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// selector embedded by the different Select/GroupBy builders.
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type selector struct {
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label string
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flds *[]string
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scan func(context.Context, interface{}) error
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}
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// ScanX is like Scan, but panics if an error occurs.
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func (s *selector) ScanX(ctx context.Context, v interface{}) {
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if err := s.scan(ctx, v); err != nil {
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panic(err)
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}
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}
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// Strings returns list of strings from a selector. It is only allowed when selecting one field.
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func (s *selector) Strings(ctx context.Context) ([]string, error) {
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if len(*s.flds) > 1 {
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return nil, errors.New("ent: Strings is not achievable when selecting more than 1 field")
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}
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var v []string
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if err := s.scan(ctx, &v); err != nil {
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return nil, err
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}
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return v, nil
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}
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// StringsX is like Strings, but panics if an error occurs.
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func (s *selector) StringsX(ctx context.Context) []string {
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v, err := s.Strings(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// String returns a single string from a selector. It is only allowed when selecting one field.
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func (s *selector) String(ctx context.Context) (_ string, err error) {
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var v []string
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if v, err = s.Strings(ctx); err != nil {
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return
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}
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switch len(v) {
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case 1:
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return v[0], nil
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case 0:
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err = &NotFoundError{s.label}
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default:
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err = fmt.Errorf("ent: Strings returned %d results when one was expected", len(v))
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}
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return
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}
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// StringX is like String, but panics if an error occurs.
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func (s *selector) StringX(ctx context.Context) string {
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v, err := s.String(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Ints returns list of ints from a selector. It is only allowed when selecting one field.
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func (s *selector) Ints(ctx context.Context) ([]int, error) {
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if len(*s.flds) > 1 {
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return nil, errors.New("ent: Ints is not achievable when selecting more than 1 field")
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}
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var v []int
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if err := s.scan(ctx, &v); err != nil {
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return nil, err
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}
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return v, nil
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}
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// IntsX is like Ints, but panics if an error occurs.
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func (s *selector) IntsX(ctx context.Context) []int {
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v, err := s.Ints(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Int returns a single int from a selector. It is only allowed when selecting one field.
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func (s *selector) Int(ctx context.Context) (_ int, err error) {
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var v []int
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if v, err = s.Ints(ctx); err != nil {
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return
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}
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switch len(v) {
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case 1:
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return v[0], nil
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case 0:
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err = &NotFoundError{s.label}
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default:
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err = fmt.Errorf("ent: Ints returned %d results when one was expected", len(v))
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}
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return
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}
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// IntX is like Int, but panics if an error occurs.
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func (s *selector) IntX(ctx context.Context) int {
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v, err := s.Int(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Float64s returns list of float64s from a selector. It is only allowed when selecting one field.
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func (s *selector) Float64s(ctx context.Context) ([]float64, error) {
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if len(*s.flds) > 1 {
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return nil, errors.New("ent: Float64s is not achievable when selecting more than 1 field")
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}
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var v []float64
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if err := s.scan(ctx, &v); err != nil {
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return nil, err
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}
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return v, nil
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}
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// Float64sX is like Float64s, but panics if an error occurs.
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func (s *selector) Float64sX(ctx context.Context) []float64 {
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v, err := s.Float64s(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Float64 returns a single float64 from a selector. It is only allowed when selecting one field.
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func (s *selector) Float64(ctx context.Context) (_ float64, err error) {
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var v []float64
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if v, err = s.Float64s(ctx); err != nil {
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return
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}
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switch len(v) {
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case 1:
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return v[0], nil
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case 0:
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err = &NotFoundError{s.label}
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default:
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err = fmt.Errorf("ent: Float64s returned %d results when one was expected", len(v))
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}
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return
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}
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// Float64X is like Float64, but panics if an error occurs.
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func (s *selector) Float64X(ctx context.Context) float64 {
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v, err := s.Float64(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Bools returns list of bools from a selector. It is only allowed when selecting one field.
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func (s *selector) Bools(ctx context.Context) ([]bool, error) {
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if len(*s.flds) > 1 {
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return nil, errors.New("ent: Bools is not achievable when selecting more than 1 field")
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}
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var v []bool
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if err := s.scan(ctx, &v); err != nil {
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return nil, err
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}
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return v, nil
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}
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// BoolsX is like Bools, but panics if an error occurs.
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func (s *selector) BoolsX(ctx context.Context) []bool {
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v, err := s.Bools(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Bool returns a single bool from a selector. It is only allowed when selecting one field.
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func (s *selector) Bool(ctx context.Context) (_ bool, err error) {
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var v []bool
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if v, err = s.Bools(ctx); err != nil {
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return
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}
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switch len(v) {
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case 1:
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return v[0], nil
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case 0:
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err = &NotFoundError{s.label}
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default:
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err = fmt.Errorf("ent: Bools returned %d results when one was expected", len(v))
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}
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return
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}
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// BoolX is like Bool, but panics if an error occurs.
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func (s *selector) BoolX(ctx context.Context) bool {
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v, err := s.Bool(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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@@ -8,7 +8,6 @@ package ent
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import (
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"context"
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"errors"
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"fmt"
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"math"
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@@ -268,15 +267,17 @@ func (uq *UserQuery) Clone() *UserQuery {
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// Scan(ctx, &v)
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//
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func (uq *UserQuery) GroupBy(field string, fields ...string) *UserGroupBy {
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group := &UserGroupBy{config: uq.config}
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group.fields = append([]string{field}, fields...)
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group.path = func(ctx context.Context) (prev *sql.Selector, err error) {
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grbuild := &UserGroupBy{config: uq.config}
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grbuild.fields = append([]string{field}, fields...)
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grbuild.path = func(ctx context.Context) (prev *sql.Selector, err error) {
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if err := uq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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return uq.sqlQuery(ctx), nil
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}
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return group
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grbuild.label = user.Label
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grbuild.flds, grbuild.scan = &grbuild.fields, grbuild.Scan
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return grbuild
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}
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// Select allows the selection one or more fields/columns for the given query,
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@@ -294,7 +295,10 @@ func (uq *UserQuery) GroupBy(field string, fields ...string) *UserGroupBy {
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//
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func (uq *UserQuery) Select(fields ...string) *UserSelect {
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uq.fields = append(uq.fields, fields...)
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return &UserSelect{UserQuery: uq}
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selbuild := &UserSelect{UserQuery: uq}
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selbuild.label = user.Label
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selbuild.flds, selbuild.scan = &uq.fields, selbuild.Scan
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return selbuild
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}
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func (uq *UserQuery) prepareQuery(ctx context.Context) error {
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@@ -439,6 +443,7 @@ func (uq *UserQuery) sqlQuery(ctx context.Context) *sql.Selector {
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// UserGroupBy is the group-by builder for User entities.
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type UserGroupBy struct {
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config
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selector
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fields []string
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fns []AggregateFunc
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// intermediate query (i.e. traversal path).
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@@ -462,209 +467,6 @@ func (ugb *UserGroupBy) Scan(ctx context.Context, v interface{}) error {
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return ugb.sqlScan(ctx, v)
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}
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// ScanX is like Scan, but panics if an error occurs.
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func (ugb *UserGroupBy) ScanX(ctx context.Context, v interface{}) {
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if err := ugb.Scan(ctx, v); err != nil {
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panic(err)
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}
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}
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// Strings returns list of strings from group-by.
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// It is only allowed when executing a group-by query with one field.
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func (ugb *UserGroupBy) Strings(ctx context.Context) ([]string, error) {
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if len(ugb.fields) > 1 {
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return nil, errors.New("ent: UserGroupBy.Strings is not achievable when grouping more than 1 field")
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}
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var v []string
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if err := ugb.Scan(ctx, &v); err != nil {
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return nil, err
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}
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return v, nil
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}
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// StringsX is like Strings, but panics if an error occurs.
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func (ugb *UserGroupBy) StringsX(ctx context.Context) []string {
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v, err := ugb.Strings(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// String returns a single string from a group-by query.
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// It is only allowed when executing a group-by query with one field.
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func (ugb *UserGroupBy) String(ctx context.Context) (_ string, err error) {
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var v []string
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if v, err = ugb.Strings(ctx); err != nil {
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return
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}
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switch len(v) {
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case 1:
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return v[0], nil
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case 0:
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err = &NotFoundError{user.Label}
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default:
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err = fmt.Errorf("ent: UserGroupBy.Strings returned %d results when one was expected", len(v))
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}
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return
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}
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// StringX is like String, but panics if an error occurs.
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func (ugb *UserGroupBy) StringX(ctx context.Context) string {
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v, err := ugb.String(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Ints returns list of ints from group-by.
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// It is only allowed when executing a group-by query with one field.
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func (ugb *UserGroupBy) Ints(ctx context.Context) ([]int, error) {
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if len(ugb.fields) > 1 {
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return nil, errors.New("ent: UserGroupBy.Ints is not achievable when grouping more than 1 field")
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}
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var v []int
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if err := ugb.Scan(ctx, &v); err != nil {
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return nil, err
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}
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return v, nil
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}
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// IntsX is like Ints, but panics if an error occurs.
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func (ugb *UserGroupBy) IntsX(ctx context.Context) []int {
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v, err := ugb.Ints(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Int returns a single int from a group-by query.
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// It is only allowed when executing a group-by query with one field.
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func (ugb *UserGroupBy) Int(ctx context.Context) (_ int, err error) {
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var v []int
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if v, err = ugb.Ints(ctx); err != nil {
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return
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}
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switch len(v) {
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case 1:
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return v[0], nil
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case 0:
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err = &NotFoundError{user.Label}
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default:
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err = fmt.Errorf("ent: UserGroupBy.Ints returned %d results when one was expected", len(v))
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}
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return
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}
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// IntX is like Int, but panics if an error occurs.
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func (ugb *UserGroupBy) IntX(ctx context.Context) int {
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v, err := ugb.Int(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Float64s returns list of float64s from group-by.
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// It is only allowed when executing a group-by query with one field.
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func (ugb *UserGroupBy) Float64s(ctx context.Context) ([]float64, error) {
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if len(ugb.fields) > 1 {
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return nil, errors.New("ent: UserGroupBy.Float64s is not achievable when grouping more than 1 field")
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}
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var v []float64
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if err := ugb.Scan(ctx, &v); err != nil {
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return nil, err
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}
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return v, nil
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}
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// Float64sX is like Float64s, but panics if an error occurs.
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func (ugb *UserGroupBy) Float64sX(ctx context.Context) []float64 {
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v, err := ugb.Float64s(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Float64 returns a single float64 from a group-by query.
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// It is only allowed when executing a group-by query with one field.
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func (ugb *UserGroupBy) Float64(ctx context.Context) (_ float64, err error) {
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var v []float64
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if v, err = ugb.Float64s(ctx); err != nil {
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return
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}
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switch len(v) {
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case 1:
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return v[0], nil
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case 0:
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err = &NotFoundError{user.Label}
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default:
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err = fmt.Errorf("ent: UserGroupBy.Float64s returned %d results when one was expected", len(v))
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}
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return
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}
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// Float64X is like Float64, but panics if an error occurs.
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func (ugb *UserGroupBy) Float64X(ctx context.Context) float64 {
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v, err := ugb.Float64(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Bools returns list of bools from group-by.
|
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// It is only allowed when executing a group-by query with one field.
|
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func (ugb *UserGroupBy) Bools(ctx context.Context) ([]bool, error) {
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if len(ugb.fields) > 1 {
|
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return nil, errors.New("ent: UserGroupBy.Bools is not achievable when grouping more than 1 field")
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}
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var v []bool
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if err := ugb.Scan(ctx, &v); err != nil {
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return nil, err
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}
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return v, nil
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}
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// BoolsX is like Bools, but panics if an error occurs.
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func (ugb *UserGroupBy) BoolsX(ctx context.Context) []bool {
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v, err := ugb.Bools(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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// Bool returns a single bool from a group-by query.
|
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// It is only allowed when executing a group-by query with one field.
|
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func (ugb *UserGroupBy) Bool(ctx context.Context) (_ bool, err error) {
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var v []bool
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if v, err = ugb.Bools(ctx); err != nil {
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return
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}
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switch len(v) {
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case 1:
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return v[0], nil
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case 0:
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err = &NotFoundError{user.Label}
|
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default:
|
||||
err = fmt.Errorf("ent: UserGroupBy.Bools returned %d results when one was expected", len(v))
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}
|
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return
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}
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// BoolX is like Bool, but panics if an error occurs.
|
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func (ugb *UserGroupBy) BoolX(ctx context.Context) bool {
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v, err := ugb.Bool(ctx)
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if err != nil {
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panic(err)
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}
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return v
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}
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|
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func (ugb *UserGroupBy) sqlScan(ctx context.Context, v interface{}) error {
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for _, f := range ugb.fields {
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if !user.ValidColumn(f) {
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@@ -706,6 +508,7 @@ func (ugb *UserGroupBy) sqlQuery() *sql.Selector {
|
||||
// UserSelect is the builder for selecting fields of User entities.
|
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type UserSelect struct {
|
||||
*UserQuery
|
||||
selector
|
||||
// intermediate query (i.e. traversal path).
|
||||
sql *sql.Selector
|
||||
}
|
||||
@@ -719,201 +522,6 @@ func (us *UserSelect) Scan(ctx context.Context, v interface{}) error {
|
||||
return us.sqlScan(ctx, v)
|
||||
}
|
||||
|
||||
// ScanX is like Scan, but panics if an error occurs.
|
||||
func (us *UserSelect) ScanX(ctx context.Context, v interface{}) {
|
||||
if err := us.Scan(ctx, v); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
// Strings returns list of strings from a selector. It is only allowed when selecting one field.
|
||||
func (us *UserSelect) Strings(ctx context.Context) ([]string, error) {
|
||||
if len(us.fields) > 1 {
|
||||
return nil, errors.New("ent: UserSelect.Strings is not achievable when selecting more than 1 field")
|
||||
}
|
||||
var v []string
|
||||
if err := us.Scan(ctx, &v); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return v, nil
|
||||
}
|
||||
|
||||
// StringsX is like Strings, but panics if an error occurs.
|
||||
func (us *UserSelect) StringsX(ctx context.Context) []string {
|
||||
v, err := us.Strings(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// String returns a single string from a selector. It is only allowed when selecting one field.
|
||||
func (us *UserSelect) String(ctx context.Context) (_ string, err error) {
|
||||
var v []string
|
||||
if v, err = us.Strings(ctx); err != nil {
|
||||
return
|
||||
}
|
||||
switch len(v) {
|
||||
case 1:
|
||||
return v[0], nil
|
||||
case 0:
|
||||
err = &NotFoundError{user.Label}
|
||||
default:
|
||||
err = fmt.Errorf("ent: UserSelect.Strings returned %d results when one was expected", len(v))
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// StringX is like String, but panics if an error occurs.
|
||||
func (us *UserSelect) StringX(ctx context.Context) string {
|
||||
v, err := us.String(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// Ints returns list of ints from a selector. It is only allowed when selecting one field.
|
||||
func (us *UserSelect) Ints(ctx context.Context) ([]int, error) {
|
||||
if len(us.fields) > 1 {
|
||||
return nil, errors.New("ent: UserSelect.Ints is not achievable when selecting more than 1 field")
|
||||
}
|
||||
var v []int
|
||||
if err := us.Scan(ctx, &v); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return v, nil
|
||||
}
|
||||
|
||||
// IntsX is like Ints, but panics if an error occurs.
|
||||
func (us *UserSelect) IntsX(ctx context.Context) []int {
|
||||
v, err := us.Ints(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// Int returns a single int from a selector. It is only allowed when selecting one field.
|
||||
func (us *UserSelect) Int(ctx context.Context) (_ int, err error) {
|
||||
var v []int
|
||||
if v, err = us.Ints(ctx); err != nil {
|
||||
return
|
||||
}
|
||||
switch len(v) {
|
||||
case 1:
|
||||
return v[0], nil
|
||||
case 0:
|
||||
err = &NotFoundError{user.Label}
|
||||
default:
|
||||
err = fmt.Errorf("ent: UserSelect.Ints returned %d results when one was expected", len(v))
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// IntX is like Int, but panics if an error occurs.
|
||||
func (us *UserSelect) IntX(ctx context.Context) int {
|
||||
v, err := us.Int(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// Float64s returns list of float64s from a selector. It is only allowed when selecting one field.
|
||||
func (us *UserSelect) Float64s(ctx context.Context) ([]float64, error) {
|
||||
if len(us.fields) > 1 {
|
||||
return nil, errors.New("ent: UserSelect.Float64s is not achievable when selecting more than 1 field")
|
||||
}
|
||||
var v []float64
|
||||
if err := us.Scan(ctx, &v); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return v, nil
|
||||
}
|
||||
|
||||
// Float64sX is like Float64s, but panics if an error occurs.
|
||||
func (us *UserSelect) Float64sX(ctx context.Context) []float64 {
|
||||
v, err := us.Float64s(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// Float64 returns a single float64 from a selector. It is only allowed when selecting one field.
|
||||
func (us *UserSelect) Float64(ctx context.Context) (_ float64, err error) {
|
||||
var v []float64
|
||||
if v, err = us.Float64s(ctx); err != nil {
|
||||
return
|
||||
}
|
||||
switch len(v) {
|
||||
case 1:
|
||||
return v[0], nil
|
||||
case 0:
|
||||
err = &NotFoundError{user.Label}
|
||||
default:
|
||||
err = fmt.Errorf("ent: UserSelect.Float64s returned %d results when one was expected", len(v))
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// Float64X is like Float64, but panics if an error occurs.
|
||||
func (us *UserSelect) Float64X(ctx context.Context) float64 {
|
||||
v, err := us.Float64(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// Bools returns list of bools from a selector. It is only allowed when selecting one field.
|
||||
func (us *UserSelect) Bools(ctx context.Context) ([]bool, error) {
|
||||
if len(us.fields) > 1 {
|
||||
return nil, errors.New("ent: UserSelect.Bools is not achievable when selecting more than 1 field")
|
||||
}
|
||||
var v []bool
|
||||
if err := us.Scan(ctx, &v); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return v, nil
|
||||
}
|
||||
|
||||
// BoolsX is like Bools, but panics if an error occurs.
|
||||
func (us *UserSelect) BoolsX(ctx context.Context) []bool {
|
||||
v, err := us.Bools(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
// Bool returns a single bool from a selector. It is only allowed when selecting one field.
|
||||
func (us *UserSelect) Bool(ctx context.Context) (_ bool, err error) {
|
||||
var v []bool
|
||||
if v, err = us.Bools(ctx); err != nil {
|
||||
return
|
||||
}
|
||||
switch len(v) {
|
||||
case 1:
|
||||
return v[0], nil
|
||||
case 0:
|
||||
err = &NotFoundError{user.Label}
|
||||
default:
|
||||
err = fmt.Errorf("ent: UserSelect.Bools returned %d results when one was expected", len(v))
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// BoolX is like Bool, but panics if an error occurs.
|
||||
func (us *UserSelect) BoolX(ctx context.Context) bool {
|
||||
v, err := us.Bool(ctx)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
return v
|
||||
}
|
||||
|
||||
func (us *UserSelect) sqlScan(ctx context.Context, v interface{}) error {
|
||||
rows := &sql.Rows{}
|
||||
query, args := us.sql.Query()
|
||||
|
||||
Reference in New Issue
Block a user