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api/ent/group_query.go

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2022-08-31 07:49:08 +00:00
// Code generated by ent, DO NOT EDIT.
package ent
import (
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"api/ent/group"
"api/ent/predicate"
"api/ent/user"
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"context"
"database/sql/driver"
"fmt"
"math"
"entgo.io/ent/dialect/sql"
"entgo.io/ent/dialect/sql/sqlgraph"
"entgo.io/ent/schema/field"
)
// GroupQuery is the builder for querying Group entities.
type GroupQuery struct {
config
ctx *QueryContext
order []OrderFunc
inters []Interceptor
predicates []predicate.Group
withUsers *UserQuery
// intermediate query (i.e. traversal path).
sql *sql.Selector
path func(context.Context) (*sql.Selector, error)
}
// Where adds a new predicate for the GroupQuery builder.
func (gq *GroupQuery) Where(ps ...predicate.Group) *GroupQuery {
gq.predicates = append(gq.predicates, ps...)
return gq
}
// Limit the number of records to be returned by this query.
func (gq *GroupQuery) Limit(limit int) *GroupQuery {
gq.ctx.Limit = &limit
return gq
}
// Offset to start from.
func (gq *GroupQuery) Offset(offset int) *GroupQuery {
gq.ctx.Offset = &offset
return gq
}
// 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 (gq *GroupQuery) Unique(unique bool) *GroupQuery {
gq.ctx.Unique = &unique
return gq
}
// Order specifies how the records should be ordered.
func (gq *GroupQuery) Order(o ...OrderFunc) *GroupQuery {
gq.order = append(gq.order, o...)
return gq
}
// QueryUsers chains the current query on the "users" edge.
func (gq *GroupQuery) QueryUsers() *UserQuery {
query := (&UserClient{config: gq.config}).Query()
query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
if err := gq.prepareQuery(ctx); err != nil {
return nil, err
}
selector := gq.sqlQuery(ctx)
if err := selector.Err(); err != nil {
return nil, err
}
step := sqlgraph.NewStep(
sqlgraph.From(group.Table, group.FieldID, selector),
sqlgraph.To(user.Table, user.FieldID),
sqlgraph.Edge(sqlgraph.O2M, false, group.UsersTable, group.UsersColumn),
)
fromU = sqlgraph.SetNeighbors(gq.driver.Dialect(), step)
return fromU, nil
}
return query
}
// First returns the first Group entity from the query.
// Returns a *NotFoundError when no Group was found.
func (gq *GroupQuery) First(ctx context.Context) (*Group, error) {
nodes, err := gq.Limit(1).All(setContextOp(ctx, gq.ctx, "First"))
if err != nil {
return nil, err
}
if len(nodes) == 0 {
return nil, &NotFoundError{group.Label}
}
return nodes[0], nil
}
// FirstX is like First, but panics if an error occurs.
func (gq *GroupQuery) FirstX(ctx context.Context) *Group {
node, err := gq.First(ctx)
if err != nil && !IsNotFound(err) {
panic(err)
}
return node
}
// FirstID returns the first Group ID from the query.
// Returns a *NotFoundError when no Group ID was found.
func (gq *GroupQuery) FirstID(ctx context.Context) (id int, err error) {
var ids []int
if ids, err = gq.Limit(1).IDs(setContextOp(ctx, gq.ctx, "FirstID")); err != nil {
return
}
if len(ids) == 0 {
err = &NotFoundError{group.Label}
return
}
return ids[0], nil
}
// FirstIDX is like FirstID, but panics if an error occurs.
func (gq *GroupQuery) FirstIDX(ctx context.Context) int {
id, err := gq.FirstID(ctx)
if err != nil && !IsNotFound(err) {
panic(err)
}
return id
}
// Only returns a single Group entity found by the query, ensuring it only returns one.
// Returns a *NotSingularError when more than one Group entity is found.
// Returns a *NotFoundError when no Group entities are found.
func (gq *GroupQuery) Only(ctx context.Context) (*Group, error) {
nodes, err := gq.Limit(2).All(setContextOp(ctx, gq.ctx, "Only"))
if err != nil {
return nil, err
}
switch len(nodes) {
case 1:
return nodes[0], nil
case 0:
return nil, &NotFoundError{group.Label}
default:
return nil, &NotSingularError{group.Label}
}
}
// OnlyX is like Only, but panics if an error occurs.
func (gq *GroupQuery) OnlyX(ctx context.Context) *Group {
node, err := gq.Only(ctx)
if err != nil {
panic(err)
}
return node
}
// OnlyID is like Only, but returns the only Group ID in the query.
// Returns a *NotSingularError when more than one Group ID is found.
// Returns a *NotFoundError when no entities are found.
func (gq *GroupQuery) OnlyID(ctx context.Context) (id int, err error) {
var ids []int
if ids, err = gq.Limit(2).IDs(setContextOp(ctx, gq.ctx, "OnlyID")); err != nil {
return
}
switch len(ids) {
case 1:
id = ids[0]
case 0:
err = &NotFoundError{group.Label}
default:
err = &NotSingularError{group.Label}
}
return
}
// OnlyIDX is like OnlyID, but panics if an error occurs.
func (gq *GroupQuery) OnlyIDX(ctx context.Context) int {
id, err := gq.OnlyID(ctx)
if err != nil {
panic(err)
}
return id
}
// All executes the query and returns a list of Groups.
func (gq *GroupQuery) All(ctx context.Context) ([]*Group, error) {
ctx = setContextOp(ctx, gq.ctx, "All")
if err := gq.prepareQuery(ctx); err != nil {
return nil, err
}
qr := querierAll[[]*Group, *GroupQuery]()
return withInterceptors[[]*Group](ctx, gq, qr, gq.inters)
}
// AllX is like All, but panics if an error occurs.
func (gq *GroupQuery) AllX(ctx context.Context) []*Group {
nodes, err := gq.All(ctx)
if err != nil {
panic(err)
}
return nodes
}
// IDs executes the query and returns a list of Group IDs.
func (gq *GroupQuery) IDs(ctx context.Context) (ids []int, err error) {
if gq.ctx.Unique == nil && gq.path != nil {
gq.Unique(true)
}
ctx = setContextOp(ctx, gq.ctx, "IDs")
if err = gq.Select(group.FieldID).Scan(ctx, &ids); err != nil {
return nil, err
}
return ids, nil
}
// IDsX is like IDs, but panics if an error occurs.
func (gq *GroupQuery) IDsX(ctx context.Context) []int {
ids, err := gq.IDs(ctx)
if err != nil {
panic(err)
}
return ids
}
// Count returns the count of the given query.
func (gq *GroupQuery) Count(ctx context.Context) (int, error) {
ctx = setContextOp(ctx, gq.ctx, "Count")
if err := gq.prepareQuery(ctx); err != nil {
return 0, err
}
return withInterceptors[int](ctx, gq, querierCount[*GroupQuery](), gq.inters)
}
// CountX is like Count, but panics if an error occurs.
func (gq *GroupQuery) CountX(ctx context.Context) int {
count, err := gq.Count(ctx)
if err != nil {
panic(err)
}
return count
}
// Exist returns true if the query has elements in the graph.
func (gq *GroupQuery) Exist(ctx context.Context) (bool, error) {
ctx = setContextOp(ctx, gq.ctx, "Exist")
switch _, err := gq.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 (gq *GroupQuery) ExistX(ctx context.Context) bool {
exist, err := gq.Exist(ctx)
if err != nil {
panic(err)
}
return exist
}
// Clone returns a duplicate of the GroupQuery builder, including all associated steps. It can be
// used to prepare common query builders and use them differently after the clone is made.
func (gq *GroupQuery) Clone() *GroupQuery {
if gq == nil {
return nil
}
return &GroupQuery{
config: gq.config,
ctx: gq.ctx.Clone(),
order: append([]OrderFunc{}, gq.order...),
inters: append([]Interceptor{}, gq.inters...),
predicates: append([]predicate.Group{}, gq.predicates...),
withUsers: gq.withUsers.Clone(),
// clone intermediate query.
sql: gq.sql.Clone(),
path: gq.path,
}
}
// WithUsers tells the query-builder to eager-load the nodes that are connected to
// the "users" edge. The optional arguments are used to configure the query builder of the edge.
func (gq *GroupQuery) WithUsers(opts ...func(*UserQuery)) *GroupQuery {
query := (&UserClient{config: gq.config}).Query()
for _, opt := range opts {
opt(query)
}
gq.withUsers = query
return gq
}
// 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 {
// Name string `json:"name,omitempty"`
// Count int `json:"count,omitempty"`
// }
//
// client.Group.Query().
// GroupBy(group.FieldName).
// Aggregate(ent.Count()).
// Scan(ctx, &v)
func (gq *GroupQuery) GroupBy(field string, fields ...string) *GroupGroupBy {
gq.ctx.Fields = append([]string{field}, fields...)
grbuild := &GroupGroupBy{build: gq}
grbuild.flds = &gq.ctx.Fields
grbuild.label = group.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 {
// Name string `json:"name,omitempty"`
// }
//
// client.Group.Query().
// Select(group.FieldName).
// Scan(ctx, &v)
func (gq *GroupQuery) Select(fields ...string) *GroupSelect {
gq.ctx.Fields = append(gq.ctx.Fields, fields...)
sbuild := &GroupSelect{GroupQuery: gq}
sbuild.label = group.Label
sbuild.flds, sbuild.scan = &gq.ctx.Fields, sbuild.Scan
return sbuild
}
// Aggregate returns a GroupSelect configured with the given aggregations.
func (gq *GroupQuery) Aggregate(fns ...AggregateFunc) *GroupSelect {
return gq.Select().Aggregate(fns...)
}
func (gq *GroupQuery) prepareQuery(ctx context.Context) error {
for _, inter := range gq.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, gq); err != nil {
return err
}
}
}
for _, f := range gq.ctx.Fields {
if !group.ValidColumn(f) {
return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
}
}
if gq.path != nil {
prev, err := gq.path(ctx)
if err != nil {
return err
}
gq.sql = prev
}
return nil
}
func (gq *GroupQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Group, error) {
var (
nodes = []*Group{}
_spec = gq.querySpec()
loadedTypes = [1]bool{
gq.withUsers != nil,
}
)
_spec.ScanValues = func(columns []string) ([]any, error) {
return (*Group).scanValues(nil, columns)
}
_spec.Assign = func(columns []string, values []any) error {
node := &Group{config: gq.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, gq.driver, _spec); err != nil {
return nil, err
}
if len(nodes) == 0 {
return nodes, nil
}
if query := gq.withUsers; query != nil {
if err := gq.loadUsers(ctx, query, nodes,
func(n *Group) { n.Edges.Users = []*User{} },
func(n *Group, e *User) { n.Edges.Users = append(n.Edges.Users, e) }); err != nil {
return nil, err
}
}
return nodes, nil
}
func (gq *GroupQuery) loadUsers(ctx context.Context, query *UserQuery, nodes []*Group, init func(*Group), assign func(*Group, *User)) error {
fks := make([]driver.Value, 0, len(nodes))
nodeids := make(map[int]*Group)
for i := range nodes {
fks = append(fks, nodes[i].ID)
nodeids[nodes[i].ID] = nodes[i]
if init != nil {
init(nodes[i])
}
}
query.withFKs = true
query.Where(predicate.User(func(s *sql.Selector) {
s.Where(sql.InValues(group.UsersColumn, fks...))
}))
neighbors, err := query.All(ctx)
if err != nil {
return err
}
for _, n := range neighbors {
fk := n.group_users
if fk == nil {
return fmt.Errorf(`foreign-key "group_users" is nil for node %v`, n.ID)
}
node, ok := nodeids[*fk]
if !ok {
return fmt.Errorf(`unexpected foreign-key "group_users" returned %v for node %v`, *fk, n.ID)
}
assign(node, n)
}
return nil
}
func (gq *GroupQuery) sqlCount(ctx context.Context) (int, error) {
_spec := gq.querySpec()
_spec.Node.Columns = gq.ctx.Fields
if len(gq.ctx.Fields) > 0 {
_spec.Unique = gq.ctx.Unique != nil && *gq.ctx.Unique
}
return sqlgraph.CountNodes(ctx, gq.driver, _spec)
}
func (gq *GroupQuery) querySpec() *sqlgraph.QuerySpec {
_spec := sqlgraph.NewQuerySpec(group.Table, group.Columns, sqlgraph.NewFieldSpec(group.FieldID, field.TypeInt))
_spec.From = gq.sql
if unique := gq.ctx.Unique; unique != nil {
_spec.Unique = *unique
} else if gq.path != nil {
_spec.Unique = true
}
if fields := gq.ctx.Fields; len(fields) > 0 {
_spec.Node.Columns = make([]string, 0, len(fields))
_spec.Node.Columns = append(_spec.Node.Columns, group.FieldID)
for i := range fields {
if fields[i] != group.FieldID {
_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
}
}
}
if ps := gq.predicates; len(ps) > 0 {
_spec.Predicate = func(selector *sql.Selector) {
for i := range ps {
ps[i](selector)
}
}
}
if limit := gq.ctx.Limit; limit != nil {
_spec.Limit = *limit
}
if offset := gq.ctx.Offset; offset != nil {
_spec.Offset = *offset
}
if ps := gq.order; len(ps) > 0 {
_spec.Order = func(selector *sql.Selector) {
for i := range ps {
ps[i](selector)
}
}
}
return _spec
}
func (gq *GroupQuery) sqlQuery(ctx context.Context) *sql.Selector {
builder := sql.Dialect(gq.driver.Dialect())
t1 := builder.Table(group.Table)
columns := gq.ctx.Fields
if len(columns) == 0 {
columns = group.Columns
}
selector := builder.Select(t1.Columns(columns...)...).From(t1)
if gq.sql != nil {
selector = gq.sql
selector.Select(selector.Columns(columns...)...)
}
if gq.ctx.Unique != nil && *gq.ctx.Unique {
selector.Distinct()
}
for _, p := range gq.predicates {
p(selector)
}
for _, p := range gq.order {
p(selector)
}
if offset := gq.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 := gq.ctx.Limit; limit != nil {
selector.Limit(*limit)
}
return selector
}
// GroupGroupBy is the group-by builder for Group entities.
type GroupGroupBy struct {
selector
build *GroupQuery
}
// Aggregate adds the given aggregation functions to the group-by query.
func (ggb *GroupGroupBy) Aggregate(fns ...AggregateFunc) *GroupGroupBy {
ggb.fns = append(ggb.fns, fns...)
return ggb
}
// Scan applies the selector query and scans the result into the given value.
func (ggb *GroupGroupBy) Scan(ctx context.Context, v any) error {
ctx = setContextOp(ctx, ggb.build.ctx, "GroupBy")
if err := ggb.build.prepareQuery(ctx); err != nil {
return err
}
return scanWithInterceptors[*GroupQuery, *GroupGroupBy](ctx, ggb.build, ggb, ggb.build.inters, v)
}
func (ggb *GroupGroupBy) sqlScan(ctx context.Context, root *GroupQuery, v any) error {
selector := root.sqlQuery(ctx).Select()
aggregation := make([]string, 0, len(ggb.fns))
for _, fn := range ggb.fns {
aggregation = append(aggregation, fn(selector))
}
if len(selector.SelectedColumns()) == 0 {
columns := make([]string, 0, len(*ggb.flds)+len(ggb.fns))
for _, f := range *ggb.flds {
columns = append(columns, selector.C(f))
}
columns = append(columns, aggregation...)
selector.Select(columns...)
}
selector.GroupBy(selector.Columns(*ggb.flds...)...)
if err := selector.Err(); err != nil {
return err
}
rows := &sql.Rows{}
query, args := selector.Query()
if err := ggb.build.driver.Query(ctx, query, args, rows); err != nil {
return err
}
defer rows.Close()
return sql.ScanSlice(rows, v)
}
// GroupSelect is the builder for selecting fields of Group entities.
type GroupSelect struct {
*GroupQuery
selector
}
// Aggregate adds the given aggregation functions to the selector query.
func (gs *GroupSelect) Aggregate(fns ...AggregateFunc) *GroupSelect {
gs.fns = append(gs.fns, fns...)
return gs
}
// Scan applies the selector query and scans the result into the given value.
func (gs *GroupSelect) Scan(ctx context.Context, v any) error {
ctx = setContextOp(ctx, gs.ctx, "Select")
if err := gs.prepareQuery(ctx); err != nil {
return err
}
return scanWithInterceptors[*GroupQuery, *GroupSelect](ctx, gs.GroupQuery, gs, gs.inters, v)
}
func (gs *GroupSelect) sqlScan(ctx context.Context, root *GroupQuery, v any) error {
selector := root.sqlQuery(ctx)
aggregation := make([]string, 0, len(gs.fns))
for _, fn := range gs.fns {
aggregation = append(aggregation, fn(selector))
}
switch n := len(*gs.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 := gs.driver.Query(ctx, query, args, rows); err != nil {
return err
}
defer rows.Close()
return sql.ScanSlice(rows, v)
}