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259
ent/ent.go
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259
ent/ent.go
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// Code generated by entc, DO NOT EDIT.
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package ent
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import (
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"errors"
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"fmt"
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"t/ent/users"
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"entgo.io/ent"
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"entgo.io/ent/dialect/sql"
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)
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// ent aliases to avoid import conflicts in user's code.
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type (
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Op = ent.Op
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Hook = ent.Hook
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Value = ent.Value
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Query = ent.Query
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Policy = ent.Policy
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Mutator = ent.Mutator
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Mutation = ent.Mutation
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MutateFunc = ent.MutateFunc
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)
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// OrderFunc applies an ordering on the sql selector.
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type OrderFunc func(*sql.Selector)
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// columnChecker returns a function indicates if the column exists in the given column.
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func columnChecker(table string) func(string) error {
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checks := map[string]func(string) bool{
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users.Table: users.ValidColumn,
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}
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check, ok := checks[table]
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if !ok {
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return func(string) error {
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return fmt.Errorf("unknown table %q", table)
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}
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}
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return func(column string) error {
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if !check(column) {
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return fmt.Errorf("unknown column %q for table %q", column, table)
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}
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return nil
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}
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}
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// Asc applies the given fields in ASC order.
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func Asc(fields ...string) OrderFunc {
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return func(s *sql.Selector) {
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check := columnChecker(s.TableName())
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for _, f := range fields {
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if err := check(f); err != nil {
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s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
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}
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s.OrderBy(sql.Asc(s.C(f)))
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}
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}
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}
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// Desc applies the given fields in DESC order.
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func Desc(fields ...string) OrderFunc {
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return func(s *sql.Selector) {
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check := columnChecker(s.TableName())
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for _, f := range fields {
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if err := check(f); err != nil {
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s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
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}
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s.OrderBy(sql.Desc(s.C(f)))
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}
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}
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}
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// AggregateFunc applies an aggregation step on the group-by traversal/selector.
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type AggregateFunc func(*sql.Selector) string
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// As is a pseudo aggregation function for renaming another other functions with custom names. For example:
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//
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// GroupBy(field1, field2).
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// Aggregate(ent.As(ent.Sum(field1), "sum_field1"), (ent.As(ent.Sum(field2), "sum_field2")).
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// Scan(ctx, &v)
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//
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func As(fn AggregateFunc, end string) AggregateFunc {
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return func(s *sql.Selector) string {
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return sql.As(fn(s), end)
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}
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}
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// Count applies the "count" aggregation function on each group.
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func Count() AggregateFunc {
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return func(s *sql.Selector) string {
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return sql.Count("*")
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}
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}
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// Max applies the "max" aggregation function on the given field of each group.
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func Max(field string) AggregateFunc {
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return func(s *sql.Selector) string {
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check := columnChecker(s.TableName())
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if err := check(field); err != nil {
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s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
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return ""
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}
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return sql.Max(s.C(field))
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}
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}
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// Mean applies the "mean" aggregation function on the given field of each group.
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func Mean(field string) AggregateFunc {
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return func(s *sql.Selector) string {
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check := columnChecker(s.TableName())
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if err := check(field); err != nil {
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s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
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return ""
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}
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return sql.Avg(s.C(field))
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}
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}
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// Min applies the "min" aggregation function on the given field of each group.
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func Min(field string) AggregateFunc {
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return func(s *sql.Selector) string {
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check := columnChecker(s.TableName())
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if err := check(field); err != nil {
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s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
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return ""
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}
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return sql.Min(s.C(field))
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}
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}
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// Sum applies the "sum" aggregation function on the given field of each group.
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func Sum(field string) AggregateFunc {
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return func(s *sql.Selector) string {
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check := columnChecker(s.TableName())
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if err := check(field); err != nil {
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s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
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return ""
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}
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return sql.Sum(s.C(field))
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}
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}
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// ValidationError returns when validating a field or edge fails.
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type ValidationError struct {
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Name string // Field or edge name.
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err error
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}
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// Error implements the error interface.
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func (e *ValidationError) Error() string {
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return e.err.Error()
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}
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// Unwrap implements the errors.Wrapper interface.
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func (e *ValidationError) Unwrap() error {
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return e.err
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}
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// IsValidationError returns a boolean indicating whether the error is a validation error.
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func IsValidationError(err error) bool {
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if err == nil {
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return false
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}
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var e *ValidationError
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return errors.As(err, &e)
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}
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// NotFoundError returns when trying to fetch a specific entity and it was not found in the database.
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type NotFoundError struct {
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label string
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}
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// Error implements the error interface.
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func (e *NotFoundError) Error() string {
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return "ent: " + e.label + " not found"
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}
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// IsNotFound returns a boolean indicating whether the error is a not found error.
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func IsNotFound(err error) bool {
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if err == nil {
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return false
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}
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var e *NotFoundError
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return errors.As(err, &e)
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}
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// MaskNotFound masks not found error.
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func MaskNotFound(err error) error {
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if IsNotFound(err) {
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return nil
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}
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return err
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}
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// NotSingularError returns when trying to fetch a singular entity and more then one was found in the database.
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type NotSingularError struct {
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label string
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}
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// Error implements the error interface.
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func (e *NotSingularError) Error() string {
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return "ent: " + e.label + " not singular"
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}
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// IsNotSingular returns a boolean indicating whether the error is a not singular error.
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func IsNotSingular(err error) bool {
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if err == nil {
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return false
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}
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var e *NotSingularError
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return errors.As(err, &e)
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}
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// NotLoadedError returns when trying to get a node that was not loaded by the query.
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type NotLoadedError struct {
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edge string
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}
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// Error implements the error interface.
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func (e *NotLoadedError) Error() string {
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return "ent: " + e.edge + " edge was not loaded"
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}
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// IsNotLoaded returns a boolean indicating whether the error is a not loaded error.
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func IsNotLoaded(err error) bool {
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if err == nil {
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return false
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}
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var e *NotLoadedError
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return errors.As(err, &e)
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}
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// ConstraintError returns when trying to create/update one or more entities and
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// one or more of their constraints failed. For example, violation of edge or
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// field uniqueness.
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type ConstraintError struct {
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msg string
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wrap error
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}
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// Error implements the error interface.
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func (e ConstraintError) Error() string {
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return "ent: constraint failed: " + e.msg
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}
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// Unwrap implements the errors.Wrapper interface.
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func (e *ConstraintError) Unwrap() error {
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return e.wrap
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}
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// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
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func IsConstraintError(err error) bool {
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if err == nil {
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return false
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}
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var e *ConstraintError
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return errors.As(err, &e)
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}
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