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api/ent/card_query.go

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2022-08-31 07:49:08 +00:00
// Code generated by ent, DO NOT EDIT.
package ent
import (
"context"
"fmt"
"math"
"t/ent/card"
"t/ent/predicate"
"t/ent/user"
"entgo.io/ent/dialect/sql"
"entgo.io/ent/dialect/sql/sqlgraph"
"entgo.io/ent/schema/field"
)
// CardQuery is the builder for querying Card entities.
type CardQuery struct {
config
ctx *QueryContext
order []OrderFunc
inters []Interceptor
predicates []predicate.Card
withOwner *UserQuery
withFKs bool
// intermediate query (i.e. traversal path).
sql *sql.Selector
path func(context.Context) (*sql.Selector, error)
}
// Where adds a new predicate for the CardQuery builder.
func (cq *CardQuery) Where(ps ...predicate.Card) *CardQuery {
cq.predicates = append(cq.predicates, ps...)
return cq
}
// Limit the number of records to be returned by this query.
func (cq *CardQuery) Limit(limit int) *CardQuery {
cq.ctx.Limit = &limit
return cq
}
// Offset to start from.
func (cq *CardQuery) Offset(offset int) *CardQuery {
cq.ctx.Offset = &offset
return cq
}
// Unique configures the query builder to filter duplicate records on query.
// By default, unique is set to true, and can be disabled using this method.
func (cq *CardQuery) Unique(unique bool) *CardQuery {
cq.ctx.Unique = &unique
return cq
}
// Order specifies how the records should be ordered.
func (cq *CardQuery) Order(o ...OrderFunc) *CardQuery {
cq.order = append(cq.order, o...)
return cq
}
// QueryOwner chains the current query on the "owner" edge.
func (cq *CardQuery) QueryOwner() *UserQuery {
query := (&UserClient{config: cq.config}).Query()
query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
if err := cq.prepareQuery(ctx); err != nil {
return nil, err
}
selector := cq.sqlQuery(ctx)
if err := selector.Err(); err != nil {
return nil, err
}
step := sqlgraph.NewStep(
sqlgraph.From(card.Table, card.FieldID, selector),
sqlgraph.To(user.Table, user.FieldID),
sqlgraph.Edge(sqlgraph.M2O, true, card.OwnerTable, card.OwnerColumn),
)
fromU = sqlgraph.SetNeighbors(cq.driver.Dialect(), step)
return fromU, nil
}
return query
}
// First returns the first Card entity from the query.
// Returns a *NotFoundError when no Card was found.
func (cq *CardQuery) First(ctx context.Context) (*Card, error) {
nodes, err := cq.Limit(1).All(setContextOp(ctx, cq.ctx, "First"))
if err != nil {
return nil, err
}
if len(nodes) == 0 {
return nil, &NotFoundError{card.Label}
}
return nodes[0], nil
}
// FirstX is like First, but panics if an error occurs.
func (cq *CardQuery) FirstX(ctx context.Context) *Card {
node, err := cq.First(ctx)
if err != nil && !IsNotFound(err) {
panic(err)
}
return node
}
// FirstID returns the first Card ID from the query.
// Returns a *NotFoundError when no Card ID was found.
func (cq *CardQuery) FirstID(ctx context.Context) (id int, err error) {
var ids []int
if ids, err = cq.Limit(1).IDs(setContextOp(ctx, cq.ctx, "FirstID")); err != nil {
return
}
if len(ids) == 0 {
err = &NotFoundError{card.Label}
return
}
return ids[0], nil
}
// FirstIDX is like FirstID, but panics if an error occurs.
func (cq *CardQuery) FirstIDX(ctx context.Context) int {
id, err := cq.FirstID(ctx)
if err != nil && !IsNotFound(err) {
panic(err)
}
return id
}
// Only returns a single Card entity found by the query, ensuring it only returns one.
// Returns a *NotSingularError when more than one Card entity is found.
// Returns a *NotFoundError when no Card entities are found.
func (cq *CardQuery) Only(ctx context.Context) (*Card, error) {
nodes, err := cq.Limit(2).All(setContextOp(ctx, cq.ctx, "Only"))
if err != nil {
return nil, err
}
switch len(nodes) {
case 1:
return nodes[0], nil
case 0:
return nil, &NotFoundError{card.Label}
default:
return nil, &NotSingularError{card.Label}
}
}
// OnlyX is like Only, but panics if an error occurs.
func (cq *CardQuery) OnlyX(ctx context.Context) *Card {
node, err := cq.Only(ctx)
if err != nil {
panic(err)
}
return node
}
// OnlyID is like Only, but returns the only Card ID in the query.
// Returns a *NotSingularError when more than one Card ID is found.
// Returns a *NotFoundError when no entities are found.
func (cq *CardQuery) OnlyID(ctx context.Context) (id int, err error) {
var ids []int
if ids, err = cq.Limit(2).IDs(setContextOp(ctx, cq.ctx, "OnlyID")); err != nil {
return
}
switch len(ids) {
case 1:
id = ids[0]
case 0:
err = &NotFoundError{card.Label}
default:
err = &NotSingularError{card.Label}
}
return
}
// OnlyIDX is like OnlyID, but panics if an error occurs.
func (cq *CardQuery) OnlyIDX(ctx context.Context) int {
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) {
ctx = setContextOp(ctx, cq.ctx, "All")
if err := cq.prepareQuery(ctx); err != nil {
return nil, err
}
qr := querierAll[[]*Card, *CardQuery]()
return withInterceptors[[]*Card](ctx, cq, qr, cq.inters)
}
// AllX is like All, but panics if an error occurs.
func (cq *CardQuery) AllX(ctx context.Context) []*Card {
nodes, err := cq.All(ctx)
if err != nil {
panic(err)
}
return nodes
}
// IDs executes the query and returns a list of Card IDs.
func (cq *CardQuery) IDs(ctx context.Context) (ids []int, err error) {
if cq.ctx.Unique == nil && cq.path != nil {
cq.Unique(true)
}
ctx = setContextOp(ctx, cq.ctx, "IDs")
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) []int {
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) {
ctx = setContextOp(ctx, cq.ctx, "Count")
if err := cq.prepareQuery(ctx); err != nil {
return 0, err
}
return withInterceptors[int](ctx, cq, querierCount[*CardQuery](), cq.inters)
}
// 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) {
ctx = setContextOp(ctx, cq.ctx, "Exist")
switch _, err := cq.FirstID(ctx); {
case IsNotFound(err):
return false, nil
case err != nil:
return false, fmt.Errorf("ent: check existence: %w", err)
default:
return true, nil
}
}
// 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 CardQuery 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 {
if cq == nil {
return nil
}
return &CardQuery{
config: cq.config,
ctx: cq.ctx.Clone(),
order: append([]OrderFunc{}, cq.order...),
inters: append([]Interceptor{}, cq.inters...),
predicates: append([]predicate.Card{}, cq.predicates...),
withOwner: cq.withOwner.Clone(),
// clone intermediate query.
sql: cq.sql.Clone(),
path: cq.path,
}
}
// WithOwner tells the query-builder to eager-load the nodes that are connected to
// the "owner" edge. The optional arguments are used to configure the query builder of the edge.
func (cq *CardQuery) WithOwner(opts ...func(*UserQuery)) *CardQuery {
query := (&UserClient{config: cq.config}).Query()
for _, opt := range opts {
opt(query)
}
cq.withOwner = query
return cq
}
// GroupBy is 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 {
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// Password string `json:"password,omitempty"`
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// Count int `json:"count,omitempty"`
// }
//
// client.Card.Query().
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// GroupBy(card.FieldPassword).
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// Aggregate(ent.Count()).
// Scan(ctx, &v)
func (cq *CardQuery) GroupBy(field string, fields ...string) *CardGroupBy {
cq.ctx.Fields = append([]string{field}, fields...)
grbuild := &CardGroupBy{build: cq}
grbuild.flds = &cq.ctx.Fields
grbuild.label = card.Label
grbuild.scan = grbuild.Scan
return grbuild
}
// Select allows the selection one or more fields/columns for the given query,
// instead of selecting all fields in the entity.
//
// Example:
//
// var v []struct {
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// Password string `json:"password,omitempty"`
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// }
//
// client.Card.Query().
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// Select(card.FieldPassword).
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// Scan(ctx, &v)
func (cq *CardQuery) Select(fields ...string) *CardSelect {
cq.ctx.Fields = append(cq.ctx.Fields, fields...)
sbuild := &CardSelect{CardQuery: cq}
sbuild.label = card.Label
sbuild.flds, sbuild.scan = &cq.ctx.Fields, sbuild.Scan
return sbuild
}
// Aggregate returns a CardSelect configured with the given aggregations.
func (cq *CardQuery) Aggregate(fns ...AggregateFunc) *CardSelect {
return cq.Select().Aggregate(fns...)
}
func (cq *CardQuery) prepareQuery(ctx context.Context) error {
for _, inter := range cq.inters {
if inter == nil {
return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
}
if trv, ok := inter.(Traverser); ok {
if err := trv.Traverse(ctx, cq); err != nil {
return err
}
}
}
for _, f := range cq.ctx.Fields {
if !card.ValidColumn(f) {
return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
}
}
if cq.path != nil {
prev, err := cq.path(ctx)
if err != nil {
return err
}
cq.sql = prev
}
return nil
}
func (cq *CardQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Card, error) {
var (
nodes = []*Card{}
withFKs = cq.withFKs
_spec = cq.querySpec()
loadedTypes = [1]bool{
cq.withOwner != nil,
}
)
if cq.withOwner != nil {
withFKs = true
}
if withFKs {
_spec.Node.Columns = append(_spec.Node.Columns, card.ForeignKeys...)
}
_spec.ScanValues = func(columns []string) ([]any, error) {
return (*Card).scanValues(nil, columns)
}
_spec.Assign = func(columns []string, values []any) error {
node := &Card{config: cq.config}
nodes = append(nodes, node)
node.Edges.loadedTypes = loadedTypes
return node.assignValues(columns, values)
}
for i := range hooks {
hooks[i](ctx, _spec)
}
if err := sqlgraph.QueryNodes(ctx, cq.driver, _spec); err != nil {
return nil, err
}
if len(nodes) == 0 {
return nodes, nil
}
if query := cq.withOwner; query != nil {
if err := cq.loadOwner(ctx, query, nodes, nil,
func(n *Card, e *User) { n.Edges.Owner = e }); err != nil {
return nil, err
}
}
return nodes, nil
}
func (cq *CardQuery) loadOwner(ctx context.Context, query *UserQuery, nodes []*Card, init func(*Card), assign func(*Card, *User)) error {
ids := make([]int, 0, len(nodes))
nodeids := make(map[int][]*Card)
for i := range nodes {
if nodes[i].user_card == nil {
continue
}
fk := *nodes[i].user_card
if _, ok := nodeids[fk]; !ok {
ids = append(ids, fk)
}
nodeids[fk] = append(nodeids[fk], nodes[i])
}
if len(ids) == 0 {
return nil
}
query.Where(user.IDIn(ids...))
neighbors, err := query.All(ctx)
if err != nil {
return err
}
for _, n := range neighbors {
nodes, ok := nodeids[n.ID]
if !ok {
return fmt.Errorf(`unexpected foreign-key "user_card" returned %v`, n.ID)
}
for i := range nodes {
assign(nodes[i], n)
}
}
return nil
}
func (cq *CardQuery) sqlCount(ctx context.Context) (int, error) {
_spec := cq.querySpec()
_spec.Node.Columns = cq.ctx.Fields
if len(cq.ctx.Fields) > 0 {
_spec.Unique = cq.ctx.Unique != nil && *cq.ctx.Unique
}
return sqlgraph.CountNodes(ctx, cq.driver, _spec)
}
func (cq *CardQuery) querySpec() *sqlgraph.QuerySpec {
_spec := sqlgraph.NewQuerySpec(card.Table, card.Columns, sqlgraph.NewFieldSpec(card.FieldID, field.TypeInt))
_spec.From = cq.sql
if unique := cq.ctx.Unique; unique != nil {
_spec.Unique = *unique
} else if cq.path != nil {
_spec.Unique = true
}
if fields := cq.ctx.Fields; len(fields) > 0 {
_spec.Node.Columns = make([]string, 0, len(fields))
_spec.Node.Columns = append(_spec.Node.Columns, card.FieldID)
for i := range fields {
if fields[i] != card.FieldID {
_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
}
}
}
if ps := cq.predicates; len(ps) > 0 {
_spec.Predicate = func(selector *sql.Selector) {
for i := range ps {
ps[i](selector)
}
}
}
if limit := cq.ctx.Limit; limit != nil {
_spec.Limit = *limit
}
if offset := cq.ctx.Offset; offset != nil {
_spec.Offset = *offset
}
if ps := cq.order; len(ps) > 0 {
_spec.Order = func(selector *sql.Selector) {
for i := range ps {
ps[i](selector)
}
}
}
return _spec
}
func (cq *CardQuery) sqlQuery(ctx context.Context) *sql.Selector {
builder := sql.Dialect(cq.driver.Dialect())
t1 := builder.Table(card.Table)
columns := cq.ctx.Fields
if len(columns) == 0 {
columns = card.Columns
}
selector := builder.Select(t1.Columns(columns...)...).From(t1)
if cq.sql != nil {
selector = cq.sql
selector.Select(selector.Columns(columns...)...)
}
if cq.ctx.Unique != nil && *cq.ctx.Unique {
selector.Distinct()
}
for _, p := range cq.predicates {
p(selector)
}
for _, p := range cq.order {
p(selector)
}
if offset := cq.ctx.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.ctx.Limit; limit != nil {
selector.Limit(*limit)
}
return selector
}
// CardGroupBy is the group-by builder for Card entities.
type CardGroupBy struct {
selector
build *CardQuery
}
// Aggregate adds the given aggregation functions to the group-by query.
func (cgb *CardGroupBy) Aggregate(fns ...AggregateFunc) *CardGroupBy {
cgb.fns = append(cgb.fns, fns...)
return cgb
}
// Scan applies the selector query and scans the result into the given value.
func (cgb *CardGroupBy) Scan(ctx context.Context, v any) error {
ctx = setContextOp(ctx, cgb.build.ctx, "GroupBy")
if err := cgb.build.prepareQuery(ctx); err != nil {
return err
}
return scanWithInterceptors[*CardQuery, *CardGroupBy](ctx, cgb.build, cgb, cgb.build.inters, v)
}
func (cgb *CardGroupBy) sqlScan(ctx context.Context, root *CardQuery, v any) error {
selector := root.sqlQuery(ctx).Select()
aggregation := make([]string, 0, len(cgb.fns))
for _, fn := range cgb.fns {
aggregation = append(aggregation, fn(selector))
}
if len(selector.SelectedColumns()) == 0 {
columns := make([]string, 0, len(*cgb.flds)+len(cgb.fns))
for _, f := range *cgb.flds {
columns = append(columns, selector.C(f))
}
columns = append(columns, aggregation...)
selector.Select(columns...)
}
selector.GroupBy(selector.Columns(*cgb.flds...)...)
if err := selector.Err(); err != nil {
return err
}
rows := &sql.Rows{}
query, args := selector.Query()
if err := cgb.build.driver.Query(ctx, query, args, rows); err != nil {
return err
}
defer rows.Close()
return sql.ScanSlice(rows, v)
}
// CardSelect is the builder for selecting fields of Card entities.
type CardSelect struct {
*CardQuery
selector
}
// Aggregate adds the given aggregation functions to the selector query.
func (cs *CardSelect) Aggregate(fns ...AggregateFunc) *CardSelect {
cs.fns = append(cs.fns, fns...)
return cs
}
// Scan applies the selector query and scans the result into the given value.
func (cs *CardSelect) Scan(ctx context.Context, v any) error {
ctx = setContextOp(ctx, cs.ctx, "Select")
if err := cs.prepareQuery(ctx); err != nil {
return err
}
return scanWithInterceptors[*CardQuery, *CardSelect](ctx, cs.CardQuery, cs, cs.inters, v)
}
func (cs *CardSelect) sqlScan(ctx context.Context, root *CardQuery, v any) error {
selector := root.sqlQuery(ctx)
aggregation := make([]string, 0, len(cs.fns))
for _, fn := range cs.fns {
aggregation = append(aggregation, fn(selector))
}
switch n := len(*cs.selector.flds); {
case n == 0 && len(aggregation) > 0:
selector.Select(aggregation...)
case n != 0 && len(aggregation) > 0:
selector.AppendSelect(aggregation...)
}
rows := &sql.Rows{}
query, args := selector.Query()
if err := cs.driver.Query(ctx, query, args, rows); err != nil {
return err
}
defer rows.Close()
return sql.ScanSlice(rows, v)
}