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