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// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
// This source code is licensed under the Apache 2.0 license found
// in the LICENSE file in the root directory of this source tree.
// Code generated (@generated) by entc, DO NOT EDIT.
package ent
import (
"context"
"errors"
"fmt"
"math"
"github.com/facebookincubator/ent/dialect"
"github.com/facebookincubator/ent/dialect/gremlin"
"github.com/facebookincubator/ent/dialect/gremlin/graph/dsl"
"github.com/facebookincubator/ent/dialect/gremlin/graph/dsl/__"
"github.com/facebookincubator/ent/dialect/gremlin/graph/dsl/g"
"github.com/facebookincubator/ent/dialect/sql"
"github.com/facebookincubator/ent/entc/integration/ent/card"
"github.com/facebookincubator/ent/entc/integration/ent/predicate"
"github.com/facebookincubator/ent/entc/integration/ent/user"
)
// CardQuery is the builder for querying Card entities.
type CardQuery struct {
config
limit *int
offset *int
order []Order
unique []string
predicates []predicate.Card
// intermediate queries.
sql *sql.Selector
gremlin *dsl.Traversal
}
// Where adds a new predicate for the builder.
func (cq *CardQuery) Where(ps ...predicate.Card) *CardQuery {
cq.predicates = append(cq.predicates, ps...)
return cq
}
// Limit adds a limit step to the query.
func (cq *CardQuery) Limit(limit int) *CardQuery {
cq.limit = &limit
return cq
}
// Offset adds an offset step to the query.
func (cq *CardQuery) Offset(offset int) *CardQuery {
cq.offset = &offset
return cq
}
// Order adds an order step to the query.
func (cq *CardQuery) Order(o ...Order) *CardQuery {
cq.order = append(cq.order, o...)
return cq
}
// QueryOwner chains the current query on the owner edge.
func (cq *CardQuery) QueryOwner() *UserQuery {
query := &UserQuery{config: cq.config}
switch cq.driver.Dialect() {
case dialect.MySQL, dialect.Postgres, dialect.SQLite:
step := sql.NewStep(
sql.From(card.Table, card.FieldID, cq.sqlQuery()),
sql.To(user.Table, user.FieldID),
sql.Edge(sql.O2O, true, card.OwnerTable, card.OwnerColumn),
)
query.sql = sql.SetNeighbors(cq.driver.Dialect(), step)
case dialect.Gremlin:
gremlin := cq.gremlinQuery()
query.gremlin = gremlin.InE(user.CardLabel).OutV()
}
return query
}
// First returns the first Card entity in the query. Returns *ErrNotFound when no card was found.
func (cq *CardQuery) First(ctx context.Context) (*Card, error) {
cs, err := cq.Limit(1).All(ctx)
if err != nil {
return nil, err
}
if len(cs) == 0 {
return nil, &ErrNotFound{card.Label}
}
return cs[0], nil
}
// FirstX is like First, but panics if an error occurs.
func (cq *CardQuery) FirstX(ctx context.Context) *Card {
c, err := cq.First(ctx)
if err != nil && !IsNotFound(err) {
panic(err)
}
return c
}
// FirstID returns the first Card id in the query. Returns *ErrNotFound when no id was found.
func (cq *CardQuery) FirstID(ctx context.Context) (id string, err error) {
var ids []string
if ids, err = cq.Limit(1).IDs(ctx); err != nil {
return
}
if len(ids) == 0 {
err = &ErrNotFound{card.Label}
return
}
return ids[0], nil
}
// FirstXID is like FirstID, but panics if an error occurs.
func (cq *CardQuery) FirstXID(ctx context.Context) string {
id, err := cq.FirstID(ctx)
if err != nil && !IsNotFound(err) {
panic(err)
}
return id
}
// Only returns the only Card entity in the query, returns an error if not exactly one entity was returned.
func (cq *CardQuery) Only(ctx context.Context) (*Card, error) {
cs, err := cq.Limit(2).All(ctx)
if err != nil {
return nil, err
}
switch len(cs) {
case 1:
return cs[0], nil
case 0:
return nil, &ErrNotFound{card.Label}
default:
return nil, &ErrNotSingular{card.Label}
}
}
// OnlyX is like Only, but panics if an error occurs.
func (cq *CardQuery) OnlyX(ctx context.Context) *Card {
c, err := cq.Only(ctx)
if err != nil {
panic(err)
}
return c
}
// OnlyID returns the only Card id in the query, returns an error if not exactly one id was returned.
func (cq *CardQuery) OnlyID(ctx context.Context) (id string, err error) {
var ids []string
if ids, err = cq.Limit(2).IDs(ctx); err != nil {
return
}
switch len(ids) {
case 1:
id = ids[0]
case 0:
err = &ErrNotFound{card.Label}
default:
err = &ErrNotSingular{card.Label}
}
return
}
// OnlyXID is like OnlyID, but panics if an error occurs.
func (cq *CardQuery) OnlyXID(ctx context.Context) string {
id, err := cq.OnlyID(ctx)
if err != nil {
panic(err)
}
return id
}
// All executes the query and returns a list of Cards.
func (cq *CardQuery) All(ctx context.Context) ([]*Card, error) {
switch cq.driver.Dialect() {
case dialect.MySQL, dialect.Postgres, dialect.SQLite:
return cq.sqlAll(ctx)
case dialect.Gremlin:
return cq.gremlinAll(ctx)
default:
return nil, errors.New("ent: unsupported dialect")
}
}
// AllX is like All, but panics if an error occurs.
func (cq *CardQuery) AllX(ctx context.Context) []*Card {
cs, err := cq.All(ctx)
if err != nil {
panic(err)
}
return cs
}
// IDs executes the query and returns a list of Card ids.
func (cq *CardQuery) IDs(ctx context.Context) ([]string, error) {
var ids []string
if err := cq.Select(card.FieldID).Scan(ctx, &ids); err != nil {
return nil, err
}
return ids, nil
}
// IDsX is like IDs, but panics if an error occurs.
func (cq *CardQuery) IDsX(ctx context.Context) []string {
ids, err := cq.IDs(ctx)
if err != nil {
panic(err)
}
return ids
}
// Count returns the count of the given query.
func (cq *CardQuery) Count(ctx context.Context) (int, error) {
switch cq.driver.Dialect() {
case dialect.MySQL, dialect.Postgres, dialect.SQLite:
return cq.sqlCount(ctx)
case dialect.Gremlin:
return cq.gremlinCount(ctx)
default:
return 0, errors.New("ent: unsupported dialect")
}
}
// CountX is like Count, but panics if an error occurs.
func (cq *CardQuery) CountX(ctx context.Context) int {
count, err := cq.Count(ctx)
if err != nil {
panic(err)
}
return count
}
// Exist returns true if the query has elements in the graph.
func (cq *CardQuery) Exist(ctx context.Context) (bool, error) {
switch cq.driver.Dialect() {
case dialect.MySQL, dialect.Postgres, dialect.SQLite:
return cq.sqlExist(ctx)
case dialect.Gremlin:
return cq.gremlinExist(ctx)
default:
return false, errors.New("ent: unsupported dialect")
}
}
// ExistX is like Exist, but panics if an error occurs.
func (cq *CardQuery) ExistX(ctx context.Context) bool {
exist, err := cq.Exist(ctx)
if err != nil {
panic(err)
}
return exist
}
// Clone returns a duplicate of the query builder, including all associated steps. It can be
// used to prepare common query builders and use them differently after the clone is made.
func (cq *CardQuery) Clone() *CardQuery {
return &CardQuery{
config: cq.config,
limit: cq.limit,
offset: cq.offset,
order: append([]Order{}, cq.order...),
unique: append([]string{}, cq.unique...),
predicates: append([]predicate.Card{}, cq.predicates...),
// clone intermediate queries.
sql: cq.sql.Clone(),
gremlin: cq.gremlin.Clone(),
}
}
// GroupBy used to group vertices by one or more fields/columns.
// It is often used with aggregate functions, like: count, max, mean, min, sum.
//
// Example:
//
// var v []struct {
// CreateTime time.Time `json:"create_time,omitempty"`
// Count int `json:"count,omitempty"`
// }
//
// client.Card.Query().
// GroupBy(card.FieldCreateTime).
// Aggregate(ent.Count()).
// Scan(ctx, &v)
//
func (cq *CardQuery) GroupBy(field string, fields ...string) *CardGroupBy {
group := &CardGroupBy{config: cq.config}
group.fields = append([]string{field}, fields...)
switch cq.driver.Dialect() {
case dialect.MySQL, dialect.Postgres, dialect.SQLite:
group.sql = cq.sqlQuery()
case dialect.Gremlin:
group.gremlin = cq.gremlinQuery()
}
return group
}
// Select one or more fields from the given query.
//
// Example:
//
// var v []struct {
// CreateTime time.Time `json:"create_time,omitempty"`
// }
//
// client.Card.Query().
// Select(card.FieldCreateTime).
// Scan(ctx, &v)
//
func (cq *CardQuery) Select(field string, fields ...string) *CardSelect {
selector := &CardSelect{config: cq.config}
selector.fields = append([]string{field}, fields...)
switch cq.driver.Dialect() {
case dialect.MySQL, dialect.Postgres, dialect.SQLite:
selector.sql = cq.sqlQuery()
case dialect.Gremlin:
selector.gremlin = cq.gremlinQuery()
}
return selector
}
func (cq *CardQuery) sqlAll(ctx context.Context) ([]*Card, error) {
rows := &sql.Rows{}
selector := cq.sqlQuery()
if unique := cq.unique; len(unique) == 0 {
selector.Distinct()
}
query, args := selector.Query()
if err := cq.driver.Query(ctx, query, args, rows); err != nil {
return nil, err
}
defer rows.Close()
var cs Cards
if err := cs.FromRows(rows); err != nil {
return nil, err
}
cs.config(cq.config)
return cs, nil
}
func (cq *CardQuery) sqlCount(ctx context.Context) (int, error) {
rows := &sql.Rows{}
selector := cq.sqlQuery()
unique := []string{card.FieldID}
if len(cq.unique) > 0 {
unique = cq.unique
}
selector.Count(sql.Distinct(selector.Columns(unique...)...))
query, args := selector.Query()
if err := cq.driver.Query(ctx, query, args, rows); err != nil {
return 0, err
}
defer rows.Close()
if !rows.Next() {
return 0, errors.New("ent: no rows found")
}
var n int
if err := rows.Scan(&n); err != nil {
return 0, fmt.Errorf("ent: failed reading count: %v", err)
}
return n, nil
}
func (cq *CardQuery) sqlExist(ctx context.Context) (bool, error) {
n, err := cq.sqlCount(ctx)
if err != nil {
return false, fmt.Errorf("ent: check existence: %v", err)
}
return n > 0, nil
}
func (cq *CardQuery) sqlQuery() *sql.Selector {
builder := sql.Dialect(cq.driver.Dialect())
t1 := builder.Table(card.Table)
selector := builder.Select(t1.Columns(card.Columns...)...).From(t1)
if cq.sql != nil {
selector = cq.sql
selector.Select(selector.Columns(card.Columns...)...)
}
for _, p := range cq.predicates {
p(selector)
}
for _, p := range cq.order {
p(selector)
}
if offset := cq.offset; offset != nil {
// limit is mandatory for offset clause. We start
// with default value, and override it below if needed.
selector.Offset(*offset).Limit(math.MaxInt32)
}
if limit := cq.limit; limit != nil {
selector.Limit(*limit)
}
return selector
}
func (cq *CardQuery) gremlinAll(ctx context.Context) ([]*Card, error) {
res := &gremlin.Response{}
query, bindings := cq.gremlinQuery().ValueMap(true).Query()
if err := cq.driver.Exec(ctx, query, bindings, res); err != nil {
return nil, err
}
var cs Cards
if err := cs.FromResponse(res); err != nil {
return nil, err
}
cs.config(cq.config)
return cs, nil
}
func (cq *CardQuery) gremlinCount(ctx context.Context) (int, error) {
res := &gremlin.Response{}
query, bindings := cq.gremlinQuery().Count().Query()
if err := cq.driver.Exec(ctx, query, bindings, res); err != nil {
return 0, err
}
return res.ReadInt()
}
func (cq *CardQuery) gremlinExist(ctx context.Context) (bool, error) {
res := &gremlin.Response{}
query, bindings := cq.gremlinQuery().HasNext().Query()
if err := cq.driver.Exec(ctx, query, bindings, res); err != nil {
return false, err
}
return res.ReadBool()
}
func (cq *CardQuery) gremlinQuery() *dsl.Traversal {
v := g.V().HasLabel(card.Label)
if cq.gremlin != nil {
v = cq.gremlin.Clone()
}
for _, p := range cq.predicates {
p(v)
}
if len(cq.order) > 0 {
v.Order()
for _, p := range cq.order {
p(v)
}
}
switch limit, offset := cq.limit, cq.offset; {
case limit != nil && offset != nil:
v.Range(*offset, *offset+*limit)
case offset != nil:
v.Range(*offset, math.MaxInt32)
case limit != nil:
v.Limit(*limit)
}
if unique := cq.unique; len(unique) == 0 {
v.Dedup()
}
return v
}
// CardGroupBy is the builder for group-by Card entities.
type CardGroupBy struct {
config
fields []string
fns []Aggregate
// intermediate queries.
sql *sql.Selector
gremlin *dsl.Traversal
}
// Aggregate adds the given aggregation functions to the group-by query.
func (cgb *CardGroupBy) Aggregate(fns ...Aggregate) *CardGroupBy {
cgb.fns = append(cgb.fns, fns...)
return cgb
}
// Scan applies the group-by query and scan the result into the given value.
func (cgb *CardGroupBy) Scan(ctx context.Context, v interface{}) error {
switch cgb.driver.Dialect() {
case dialect.MySQL, dialect.Postgres, dialect.SQLite:
return cgb.sqlScan(ctx, v)
case dialect.Gremlin:
return cgb.gremlinScan(ctx, v)
default:
return errors.New("cgb: unsupported dialect")
}
}
// ScanX is like Scan, but panics if an error occurs.
func (cgb *CardGroupBy) ScanX(ctx context.Context, v interface{}) {
if err := cgb.Scan(ctx, v); err != nil {
panic(err)
}
}
// Strings returns list of strings from group-by. It is only allowed when querying group-by with one field.
func (cgb *CardGroupBy) Strings(ctx context.Context) ([]string, error) {
if len(cgb.fields) > 1 {
return nil, errors.New("ent: CardGroupBy.Strings is not achievable when grouping more than 1 field")
}
var v []string
if err := cgb.Scan(ctx, &v); err != nil {
return nil, err
}
return v, nil
}
// StringsX is like Strings, but panics if an error occurs.
func (cgb *CardGroupBy) StringsX(ctx context.Context) []string {
v, err := cgb.Strings(ctx)
if err != nil {
panic(err)
}
return v
}
// Ints returns list of ints from group-by. It is only allowed when querying group-by with one field.
func (cgb *CardGroupBy) Ints(ctx context.Context) ([]int, error) {
if len(cgb.fields) > 1 {
return nil, errors.New("ent: CardGroupBy.Ints is not achievable when grouping more than 1 field")
}
var v []int
if err := cgb.Scan(ctx, &v); err != nil {
return nil, err
}
return v, nil
}
// IntsX is like Ints, but panics if an error occurs.
func (cgb *CardGroupBy) IntsX(ctx context.Context) []int {
v, err := cgb.Ints(ctx)
if err != nil {
panic(err)
}
return v
}
// Float64s returns list of float64s from group-by. It is only allowed when querying group-by with one field.
func (cgb *CardGroupBy) Float64s(ctx context.Context) ([]float64, error) {
if len(cgb.fields) > 1 {
return nil, errors.New("ent: CardGroupBy.Float64s is not achievable when grouping more than 1 field")
}
var v []float64
if err := cgb.Scan(ctx, &v); err != nil {
return nil, err
}
return v, nil
}
// Float64sX is like Float64s, but panics if an error occurs.
func (cgb *CardGroupBy) Float64sX(ctx context.Context) []float64 {
v, err := cgb.Float64s(ctx)
if err != nil {
panic(err)
}
return v
}
// Bools returns list of bools from group-by. It is only allowed when querying group-by with one field.
func (cgb *CardGroupBy) Bools(ctx context.Context) ([]bool, error) {
if len(cgb.fields) > 1 {
return nil, errors.New("ent: CardGroupBy.Bools is not achievable when grouping more than 1 field")
}
var v []bool
if err := cgb.Scan(ctx, &v); err != nil {
return nil, err
}
return v, nil
}
// BoolsX is like Bools, but panics if an error occurs.
func (cgb *CardGroupBy) BoolsX(ctx context.Context) []bool {
v, err := cgb.Bools(ctx)
if err != nil {
panic(err)
}
return v
}
func (cgb *CardGroupBy) sqlScan(ctx context.Context, v interface{}) error {
rows := &sql.Rows{}
query, args := cgb.sqlQuery().Query()
if err := cgb.driver.Query(ctx, query, args, rows); err != nil {
return err
}
defer rows.Close()
return sql.ScanSlice(rows, v)
}
func (cgb *CardGroupBy) sqlQuery() *sql.Selector {
selector := cgb.sql
columns := make([]string, 0, len(cgb.fields)+len(cgb.fns))
columns = append(columns, cgb.fields...)
for _, fn := range cgb.fns {
columns = append(columns, fn.SQL(selector))
}
return selector.Select(columns...).GroupBy(cgb.fields...)
}
func (cgb *CardGroupBy) gremlinScan(ctx context.Context, v interface{}) error {
res := &gremlin.Response{}
query, bindings := cgb.gremlinQuery().Query()
if err := cgb.driver.Exec(ctx, query, bindings, res); err != nil {
return err
}
if len(cgb.fields)+len(cgb.fns) == 1 {
return res.ReadVal(v)
}
vm, err := res.ReadValueMap()
if err != nil {
return err
}
return vm.Decode(v)
}
func (cgb *CardGroupBy) gremlinQuery() *dsl.Traversal {
var (
trs []interface{}
names []interface{}
)
for _, fn := range cgb.fns {
name, tr := fn.Gremlin("p", "")
trs = append(trs, tr)
names = append(names, name)
}
for _, f := range cgb.fields {
names = append(names, f)
trs = append(trs, __.As("p").Unfold().Values(f).As(f))
}
return cgb.gremlin.Group().
By(__.Values(cgb.fields...).Fold()).
By(__.Fold().Match(trs...).Select(names...)).
Select(dsl.Values).
Next()
}
// CardSelect is the builder for select fields of Card entities.
type CardSelect struct {
config
fields []string
// intermediate queries.
sql *sql.Selector
gremlin *dsl.Traversal
}
// Scan applies the selector query and scan the result into the given value.
func (cs *CardSelect) Scan(ctx context.Context, v interface{}) error {
switch cs.driver.Dialect() {
case dialect.MySQL, dialect.Postgres, dialect.SQLite:
return cs.sqlScan(ctx, v)
case dialect.Gremlin:
return cs.gremlinScan(ctx, v)
default:
return errors.New("CardSelect: unsupported dialect")
}
}
// ScanX is like Scan, but panics if an error occurs.
func (cs *CardSelect) ScanX(ctx context.Context, v interface{}) {
if err := cs.Scan(ctx, v); err != nil {
panic(err)
}
}
// Strings returns list of strings from selector. It is only allowed when selecting one field.
func (cs *CardSelect) Strings(ctx context.Context) ([]string, error) {
if len(cs.fields) > 1 {
return nil, errors.New("ent: CardSelect.Strings is not achievable when selecting more than 1 field")
}
var v []string
if err := cs.Scan(ctx, &v); err != nil {
return nil, err
}
return v, nil
}
// StringsX is like Strings, but panics if an error occurs.
func (cs *CardSelect) StringsX(ctx context.Context) []string {
v, err := cs.Strings(ctx)
if err != nil {
panic(err)
}
return v
}
// Ints returns list of ints from selector. It is only allowed when selecting one field.
func (cs *CardSelect) Ints(ctx context.Context) ([]int, error) {
if len(cs.fields) > 1 {
return nil, errors.New("ent: CardSelect.Ints is not achievable when selecting more than 1 field")
}
var v []int
if err := cs.Scan(ctx, &v); err != nil {
return nil, err
}
return v, nil
}
// IntsX is like Ints, but panics if an error occurs.
func (cs *CardSelect) IntsX(ctx context.Context) []int {
v, err := cs.Ints(ctx)
if err != nil {
panic(err)
}
return v
}
// Float64s returns list of float64s from selector. It is only allowed when selecting one field.
func (cs *CardSelect) Float64s(ctx context.Context) ([]float64, error) {
if len(cs.fields) > 1 {
return nil, errors.New("ent: CardSelect.Float64s is not achievable when selecting more than 1 field")
}
var v []float64
if err := cs.Scan(ctx, &v); err != nil {
return nil, err
}
return v, nil
}
// Float64sX is like Float64s, but panics if an error occurs.
func (cs *CardSelect) Float64sX(ctx context.Context) []float64 {
v, err := cs.Float64s(ctx)
if err != nil {
panic(err)
}
return v
}
// Bools returns list of bools from selector. It is only allowed when selecting one field.
func (cs *CardSelect) Bools(ctx context.Context) ([]bool, error) {
if len(cs.fields) > 1 {
return nil, errors.New("ent: CardSelect.Bools is not achievable when selecting more than 1 field")
}
var v []bool
if err := cs.Scan(ctx, &v); err != nil {
return nil, err
}
return v, nil
}
// BoolsX is like Bools, but panics if an error occurs.
func (cs *CardSelect) BoolsX(ctx context.Context) []bool {
v, err := cs.Bools(ctx)
if err != nil {
panic(err)
}
return v
}
func (cs *CardSelect) sqlScan(ctx context.Context, v interface{}) error {
rows := &sql.Rows{}
query, args := cs.sqlQuery().Query()
if err := cs.driver.Query(ctx, query, args, rows); err != nil {
return err
}
defer rows.Close()
return sql.ScanSlice(rows, v)
}
func (cs *CardSelect) sqlQuery() sql.Querier {
view := "card_view"
return sql.Dialect(cs.driver.Dialect()).
Select(cs.fields...).From(cs.sql.As(view))
}
func (cs *CardSelect) gremlinScan(ctx context.Context, v interface{}) error {
var (
traversal *dsl.Traversal
res = &gremlin.Response{}
)
if len(cs.fields) == 1 {
if cs.fields[0] != card.FieldID {
traversal = cs.gremlin.Values(cs.fields...)
} else {
traversal = cs.gremlin.ID()
}
} else {
fields := make([]interface{}, len(cs.fields))
for i, f := range cs.fields {
fields[i] = f
}
traversal = cs.gremlin.ValueMap(fields...)
}
query, bindings := traversal.Query()
if err := cs.driver.Exec(ctx, query, bindings, res); err != nil {
return err
}
if len(cs.fields) == 1 {
return res.ReadVal(v)
}
vm, err := res.ReadValueMap()
if err != nil {
return err
}
return vm.Decode(v)
}
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