765 lines
22 KiB
Go
765 lines
22 KiB
Go
// Code generated by ent, DO NOT EDIT.
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package ent
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import (
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"context"
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"fmt"
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"math"
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"online-order/ent/business"
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"online-order/ent/predicate"
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"online-order/ent/product"
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"online-order/ent/productcategory"
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"online-order/ent/user"
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"entgo.io/ent/dialect/sql"
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"entgo.io/ent/dialect/sql/sqlgraph"
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"entgo.io/ent/schema/field"
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)
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// ProductQuery is the builder for querying Product entities.
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type ProductQuery struct {
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config
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ctx *QueryContext
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order []product.OrderOption
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inters []Interceptor
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predicates []predicate.Product
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withProductCategories *ProductCategoryQuery
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withBusinesses *BusinessQuery
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withUsers *UserQuery
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// intermediate query (i.e. traversal path).
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sql *sql.Selector
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path func(context.Context) (*sql.Selector, error)
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}
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// Where adds a new predicate for the ProductQuery builder.
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func (pq *ProductQuery) Where(ps ...predicate.Product) *ProductQuery {
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pq.predicates = append(pq.predicates, ps...)
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return pq
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}
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// Limit the number of records to be returned by this query.
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func (pq *ProductQuery) Limit(limit int) *ProductQuery {
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pq.ctx.Limit = &limit
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return pq
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}
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// Offset to start from.
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func (pq *ProductQuery) Offset(offset int) *ProductQuery {
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pq.ctx.Offset = &offset
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return pq
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}
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// Unique configures the query builder to filter duplicate records on query.
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// By default, unique is set to true, and can be disabled using this method.
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func (pq *ProductQuery) Unique(unique bool) *ProductQuery {
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pq.ctx.Unique = &unique
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return pq
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}
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// Order specifies how the records should be ordered.
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func (pq *ProductQuery) Order(o ...product.OrderOption) *ProductQuery {
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pq.order = append(pq.order, o...)
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return pq
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}
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// QueryProductCategories chains the current query on the "product_categories" edge.
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func (pq *ProductQuery) QueryProductCategories() *ProductCategoryQuery {
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query := (&ProductCategoryClient{config: pq.config}).Query()
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query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
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if err := pq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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selector := pq.sqlQuery(ctx)
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if err := selector.Err(); err != nil {
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return nil, err
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}
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step := sqlgraph.NewStep(
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sqlgraph.From(product.Table, product.FieldID, selector),
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sqlgraph.To(productcategory.Table, productcategory.FieldID),
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sqlgraph.Edge(sqlgraph.M2O, true, product.ProductCategoriesTable, product.ProductCategoriesColumn),
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)
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fromU = sqlgraph.SetNeighbors(pq.driver.Dialect(), step)
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return fromU, nil
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}
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return query
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}
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// QueryBusinesses chains the current query on the "businesses" edge.
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func (pq *ProductQuery) QueryBusinesses() *BusinessQuery {
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query := (&BusinessClient{config: pq.config}).Query()
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query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
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if err := pq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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selector := pq.sqlQuery(ctx)
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if err := selector.Err(); err != nil {
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return nil, err
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}
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step := sqlgraph.NewStep(
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sqlgraph.From(product.Table, product.FieldID, selector),
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sqlgraph.To(business.Table, business.FieldID),
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sqlgraph.Edge(sqlgraph.M2O, true, product.BusinessesTable, product.BusinessesColumn),
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)
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fromU = sqlgraph.SetNeighbors(pq.driver.Dialect(), step)
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return fromU, nil
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}
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return query
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}
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// QueryUsers chains the current query on the "users" edge.
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func (pq *ProductQuery) QueryUsers() *UserQuery {
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query := (&UserClient{config: pq.config}).Query()
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query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
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if err := pq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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selector := pq.sqlQuery(ctx)
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if err := selector.Err(); err != nil {
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return nil, err
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}
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step := sqlgraph.NewStep(
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sqlgraph.From(product.Table, product.FieldID, selector),
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sqlgraph.To(user.Table, user.FieldID),
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sqlgraph.Edge(sqlgraph.M2O, true, product.UsersTable, product.UsersColumn),
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)
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fromU = sqlgraph.SetNeighbors(pq.driver.Dialect(), step)
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return fromU, nil
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}
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return query
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}
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// First returns the first Product entity from the query.
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// Returns a *NotFoundError when no Product was found.
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func (pq *ProductQuery) First(ctx context.Context) (*Product, error) {
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nodes, err := pq.Limit(1).All(setContextOp(ctx, pq.ctx, "First"))
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if err != nil {
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return nil, err
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}
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if len(nodes) == 0 {
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return nil, &NotFoundError{product.Label}
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}
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return nodes[0], nil
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}
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// FirstX is like First, but panics if an error occurs.
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func (pq *ProductQuery) FirstX(ctx context.Context) *Product {
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node, err := pq.First(ctx)
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if err != nil && !IsNotFound(err) {
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panic(err)
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}
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return node
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}
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// FirstID returns the first Product ID from the query.
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// Returns a *NotFoundError when no Product ID was found.
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func (pq *ProductQuery) FirstID(ctx context.Context) (id int, err error) {
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var ids []int
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if ids, err = pq.Limit(1).IDs(setContextOp(ctx, pq.ctx, "FirstID")); err != nil {
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return
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}
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if len(ids) == 0 {
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err = &NotFoundError{product.Label}
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return
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}
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return ids[0], nil
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}
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// FirstIDX is like FirstID, but panics if an error occurs.
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func (pq *ProductQuery) FirstIDX(ctx context.Context) int {
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id, err := pq.FirstID(ctx)
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if err != nil && !IsNotFound(err) {
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panic(err)
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}
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return id
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}
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// Only returns a single Product entity found by the query, ensuring it only returns one.
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// Returns a *NotSingularError when more than one Product entity is found.
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// Returns a *NotFoundError when no Product entities are found.
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func (pq *ProductQuery) Only(ctx context.Context) (*Product, error) {
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nodes, err := pq.Limit(2).All(setContextOp(ctx, pq.ctx, "Only"))
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if err != nil {
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return nil, err
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}
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switch len(nodes) {
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case 1:
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return nodes[0], nil
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case 0:
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return nil, &NotFoundError{product.Label}
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default:
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return nil, &NotSingularError{product.Label}
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}
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}
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// OnlyX is like Only, but panics if an error occurs.
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func (pq *ProductQuery) OnlyX(ctx context.Context) *Product {
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node, err := pq.Only(ctx)
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if err != nil {
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panic(err)
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}
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return node
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}
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// OnlyID is like Only, but returns the only Product ID in the query.
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// Returns a *NotSingularError when more than one Product ID is found.
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// Returns a *NotFoundError when no entities are found.
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func (pq *ProductQuery) OnlyID(ctx context.Context) (id int, err error) {
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var ids []int
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if ids, err = pq.Limit(2).IDs(setContextOp(ctx, pq.ctx, "OnlyID")); err != nil {
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return
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}
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switch len(ids) {
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case 1:
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id = ids[0]
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case 0:
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err = &NotFoundError{product.Label}
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default:
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err = &NotSingularError{product.Label}
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}
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return
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}
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// OnlyIDX is like OnlyID, but panics if an error occurs.
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func (pq *ProductQuery) OnlyIDX(ctx context.Context) int {
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id, err := pq.OnlyID(ctx)
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if err != nil {
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panic(err)
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}
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return id
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}
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// All executes the query and returns a list of Products.
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func (pq *ProductQuery) All(ctx context.Context) ([]*Product, error) {
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ctx = setContextOp(ctx, pq.ctx, "All")
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if err := pq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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qr := querierAll[[]*Product, *ProductQuery]()
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return withInterceptors[[]*Product](ctx, pq, qr, pq.inters)
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}
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// AllX is like All, but panics if an error occurs.
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func (pq *ProductQuery) AllX(ctx context.Context) []*Product {
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nodes, err := pq.All(ctx)
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if err != nil {
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panic(err)
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}
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return nodes
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}
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// IDs executes the query and returns a list of Product IDs.
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func (pq *ProductQuery) IDs(ctx context.Context) (ids []int, err error) {
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if pq.ctx.Unique == nil && pq.path != nil {
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pq.Unique(true)
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}
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ctx = setContextOp(ctx, pq.ctx, "IDs")
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if err = pq.Select(product.FieldID).Scan(ctx, &ids); err != nil {
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return nil, err
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}
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return ids, nil
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}
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// IDsX is like IDs, but panics if an error occurs.
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func (pq *ProductQuery) IDsX(ctx context.Context) []int {
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ids, err := pq.IDs(ctx)
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if err != nil {
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panic(err)
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}
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return ids
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}
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// Count returns the count of the given query.
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func (pq *ProductQuery) Count(ctx context.Context) (int, error) {
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ctx = setContextOp(ctx, pq.ctx, "Count")
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if err := pq.prepareQuery(ctx); err != nil {
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return 0, err
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}
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return withInterceptors[int](ctx, pq, querierCount[*ProductQuery](), pq.inters)
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}
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// CountX is like Count, but panics if an error occurs.
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func (pq *ProductQuery) CountX(ctx context.Context) int {
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count, err := pq.Count(ctx)
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if err != nil {
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panic(err)
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}
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return count
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}
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// Exist returns true if the query has elements in the graph.
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func (pq *ProductQuery) Exist(ctx context.Context) (bool, error) {
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ctx = setContextOp(ctx, pq.ctx, "Exist")
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switch _, err := pq.FirstID(ctx); {
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case IsNotFound(err):
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return false, nil
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case err != nil:
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return false, fmt.Errorf("ent: check existence: %w", err)
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default:
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return true, nil
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}
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}
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// ExistX is like Exist, but panics if an error occurs.
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func (pq *ProductQuery) ExistX(ctx context.Context) bool {
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exist, err := pq.Exist(ctx)
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if err != nil {
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panic(err)
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}
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return exist
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}
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// Clone returns a duplicate of the ProductQuery builder, including all associated steps. It can be
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// used to prepare common query builders and use them differently after the clone is made.
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func (pq *ProductQuery) Clone() *ProductQuery {
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if pq == nil {
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return nil
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}
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return &ProductQuery{
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config: pq.config,
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ctx: pq.ctx.Clone(),
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order: append([]product.OrderOption{}, pq.order...),
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inters: append([]Interceptor{}, pq.inters...),
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predicates: append([]predicate.Product{}, pq.predicates...),
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withProductCategories: pq.withProductCategories.Clone(),
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withBusinesses: pq.withBusinesses.Clone(),
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withUsers: pq.withUsers.Clone(),
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// clone intermediate query.
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sql: pq.sql.Clone(),
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path: pq.path,
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}
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}
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// WithProductCategories tells the query-builder to eager-load the nodes that are connected to
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// the "product_categories" edge. The optional arguments are used to configure the query builder of the edge.
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func (pq *ProductQuery) WithProductCategories(opts ...func(*ProductCategoryQuery)) *ProductQuery {
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query := (&ProductCategoryClient{config: pq.config}).Query()
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for _, opt := range opts {
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opt(query)
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}
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pq.withProductCategories = query
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return pq
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}
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// WithBusinesses tells the query-builder to eager-load the nodes that are connected to
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// the "businesses" edge. The optional arguments are used to configure the query builder of the edge.
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func (pq *ProductQuery) WithBusinesses(opts ...func(*BusinessQuery)) *ProductQuery {
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query := (&BusinessClient{config: pq.config}).Query()
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for _, opt := range opts {
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opt(query)
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}
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pq.withBusinesses = query
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return pq
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}
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// WithUsers tells the query-builder to eager-load the nodes that are connected to
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// the "users" edge. The optional arguments are used to configure the query builder of the edge.
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func (pq *ProductQuery) WithUsers(opts ...func(*UserQuery)) *ProductQuery {
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query := (&UserClient{config: pq.config}).Query()
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for _, opt := range opts {
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opt(query)
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}
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pq.withUsers = query
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return pq
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}
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// GroupBy is used to group vertices by one or more fields/columns.
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// It is often used with aggregate functions, like: count, max, mean, min, sum.
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//
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// Example:
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//
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// var v []struct {
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// Name string `json:"name,omitempty"`
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// Count int `json:"count,omitempty"`
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// }
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//
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// client.Product.Query().
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// GroupBy(product.FieldName).
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// Aggregate(ent.Count()).
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// Scan(ctx, &v)
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func (pq *ProductQuery) GroupBy(field string, fields ...string) *ProductGroupBy {
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pq.ctx.Fields = append([]string{field}, fields...)
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grbuild := &ProductGroupBy{build: pq}
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grbuild.flds = &pq.ctx.Fields
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grbuild.label = product.Label
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grbuild.scan = grbuild.Scan
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return grbuild
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}
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// Select allows the selection one or more fields/columns for the given query,
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// instead of selecting all fields in the entity.
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//
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// Example:
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//
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// var v []struct {
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// Name string `json:"name,omitempty"`
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// }
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//
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// client.Product.Query().
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// Select(product.FieldName).
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// Scan(ctx, &v)
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func (pq *ProductQuery) Select(fields ...string) *ProductSelect {
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pq.ctx.Fields = append(pq.ctx.Fields, fields...)
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sbuild := &ProductSelect{ProductQuery: pq}
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sbuild.label = product.Label
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sbuild.flds, sbuild.scan = &pq.ctx.Fields, sbuild.Scan
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return sbuild
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}
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// Aggregate returns a ProductSelect configured with the given aggregations.
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func (pq *ProductQuery) Aggregate(fns ...AggregateFunc) *ProductSelect {
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return pq.Select().Aggregate(fns...)
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}
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func (pq *ProductQuery) prepareQuery(ctx context.Context) error {
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for _, inter := range pq.inters {
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if inter == nil {
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return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
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}
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if trv, ok := inter.(Traverser); ok {
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if err := trv.Traverse(ctx, pq); err != nil {
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return err
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}
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}
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}
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for _, f := range pq.ctx.Fields {
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if !product.ValidColumn(f) {
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return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
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}
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}
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if pq.path != nil {
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prev, err := pq.path(ctx)
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if err != nil {
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return err
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}
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pq.sql = prev
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}
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return nil
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}
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func (pq *ProductQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Product, error) {
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var (
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nodes = []*Product{}
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_spec = pq.querySpec()
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loadedTypes = [3]bool{
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pq.withProductCategories != nil,
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pq.withBusinesses != nil,
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pq.withUsers != nil,
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}
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)
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_spec.ScanValues = func(columns []string) ([]any, error) {
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return (*Product).scanValues(nil, columns)
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}
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_spec.Assign = func(columns []string, values []any) error {
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node := &Product{config: pq.config}
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nodes = append(nodes, node)
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node.Edges.loadedTypes = loadedTypes
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return node.assignValues(columns, values)
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}
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for i := range hooks {
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hooks[i](ctx, _spec)
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}
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if err := sqlgraph.QueryNodes(ctx, pq.driver, _spec); err != nil {
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return nil, err
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}
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if len(nodes) == 0 {
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return nodes, nil
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}
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if query := pq.withProductCategories; query != nil {
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if err := pq.loadProductCategories(ctx, query, nodes, nil,
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func(n *Product, e *ProductCategory) { n.Edges.ProductCategories = e }); err != nil {
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return nil, err
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}
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}
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if query := pq.withBusinesses; query != nil {
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if err := pq.loadBusinesses(ctx, query, nodes, nil,
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func(n *Product, e *Business) { n.Edges.Businesses = e }); err != nil {
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return nil, err
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}
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}
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if query := pq.withUsers; query != nil {
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if err := pq.loadUsers(ctx, query, nodes, nil,
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func(n *Product, e *User) { n.Edges.Users = e }); err != nil {
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return nil, err
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}
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}
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return nodes, nil
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}
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func (pq *ProductQuery) loadProductCategories(ctx context.Context, query *ProductCategoryQuery, nodes []*Product, init func(*Product), assign func(*Product, *ProductCategory)) error {
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ids := make([]int, 0, len(nodes))
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nodeids := make(map[int][]*Product)
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for i := range nodes {
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if nodes[i].ProductCategoryID == nil {
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continue
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}
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fk := *nodes[i].ProductCategoryID
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if _, ok := nodeids[fk]; !ok {
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ids = append(ids, fk)
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}
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nodeids[fk] = append(nodeids[fk], nodes[i])
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}
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if len(ids) == 0 {
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return nil
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}
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query.Where(productcategory.IDIn(ids...))
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neighbors, err := query.All(ctx)
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if err != nil {
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return err
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}
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for _, n := range neighbors {
|
|
nodes, ok := nodeids[n.ID]
|
|
if !ok {
|
|
return fmt.Errorf(`unexpected foreign-key "product_category_id" returned %v`, n.ID)
|
|
}
|
|
for i := range nodes {
|
|
assign(nodes[i], n)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
func (pq *ProductQuery) loadBusinesses(ctx context.Context, query *BusinessQuery, nodes []*Product, init func(*Product), assign func(*Product, *Business)) error {
|
|
ids := make([]int, 0, len(nodes))
|
|
nodeids := make(map[int][]*Product)
|
|
for i := range nodes {
|
|
if nodes[i].BusinessID == nil {
|
|
continue
|
|
}
|
|
fk := *nodes[i].BusinessID
|
|
if _, ok := nodeids[fk]; !ok {
|
|
ids = append(ids, fk)
|
|
}
|
|
nodeids[fk] = append(nodeids[fk], nodes[i])
|
|
}
|
|
if len(ids) == 0 {
|
|
return nil
|
|
}
|
|
query.Where(business.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 "business_id" returned %v`, n.ID)
|
|
}
|
|
for i := range nodes {
|
|
assign(nodes[i], n)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
func (pq *ProductQuery) loadUsers(ctx context.Context, query *UserQuery, nodes []*Product, init func(*Product), assign func(*Product, *User)) error {
|
|
ids := make([]int, 0, len(nodes))
|
|
nodeids := make(map[int][]*Product)
|
|
for i := range nodes {
|
|
if nodes[i].UserID == nil {
|
|
continue
|
|
}
|
|
fk := *nodes[i].UserID
|
|
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_id" returned %v`, n.ID)
|
|
}
|
|
for i := range nodes {
|
|
assign(nodes[i], n)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (pq *ProductQuery) sqlCount(ctx context.Context) (int, error) {
|
|
_spec := pq.querySpec()
|
|
_spec.Node.Columns = pq.ctx.Fields
|
|
if len(pq.ctx.Fields) > 0 {
|
|
_spec.Unique = pq.ctx.Unique != nil && *pq.ctx.Unique
|
|
}
|
|
return sqlgraph.CountNodes(ctx, pq.driver, _spec)
|
|
}
|
|
|
|
func (pq *ProductQuery) querySpec() *sqlgraph.QuerySpec {
|
|
_spec := sqlgraph.NewQuerySpec(product.Table, product.Columns, sqlgraph.NewFieldSpec(product.FieldID, field.TypeInt))
|
|
_spec.From = pq.sql
|
|
if unique := pq.ctx.Unique; unique != nil {
|
|
_spec.Unique = *unique
|
|
} else if pq.path != nil {
|
|
_spec.Unique = true
|
|
}
|
|
if fields := pq.ctx.Fields; len(fields) > 0 {
|
|
_spec.Node.Columns = make([]string, 0, len(fields))
|
|
_spec.Node.Columns = append(_spec.Node.Columns, product.FieldID)
|
|
for i := range fields {
|
|
if fields[i] != product.FieldID {
|
|
_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
|
|
}
|
|
}
|
|
if pq.withProductCategories != nil {
|
|
_spec.Node.AddColumnOnce(product.FieldProductCategoryID)
|
|
}
|
|
if pq.withBusinesses != nil {
|
|
_spec.Node.AddColumnOnce(product.FieldBusinessID)
|
|
}
|
|
if pq.withUsers != nil {
|
|
_spec.Node.AddColumnOnce(product.FieldUserID)
|
|
}
|
|
}
|
|
if ps := pq.predicates; len(ps) > 0 {
|
|
_spec.Predicate = func(selector *sql.Selector) {
|
|
for i := range ps {
|
|
ps[i](selector)
|
|
}
|
|
}
|
|
}
|
|
if limit := pq.ctx.Limit; limit != nil {
|
|
_spec.Limit = *limit
|
|
}
|
|
if offset := pq.ctx.Offset; offset != nil {
|
|
_spec.Offset = *offset
|
|
}
|
|
if ps := pq.order; len(ps) > 0 {
|
|
_spec.Order = func(selector *sql.Selector) {
|
|
for i := range ps {
|
|
ps[i](selector)
|
|
}
|
|
}
|
|
}
|
|
return _spec
|
|
}
|
|
|
|
func (pq *ProductQuery) sqlQuery(ctx context.Context) *sql.Selector {
|
|
builder := sql.Dialect(pq.driver.Dialect())
|
|
t1 := builder.Table(product.Table)
|
|
columns := pq.ctx.Fields
|
|
if len(columns) == 0 {
|
|
columns = product.Columns
|
|
}
|
|
selector := builder.Select(t1.Columns(columns...)...).From(t1)
|
|
if pq.sql != nil {
|
|
selector = pq.sql
|
|
selector.Select(selector.Columns(columns...)...)
|
|
}
|
|
if pq.ctx.Unique != nil && *pq.ctx.Unique {
|
|
selector.Distinct()
|
|
}
|
|
for _, p := range pq.predicates {
|
|
p(selector)
|
|
}
|
|
for _, p := range pq.order {
|
|
p(selector)
|
|
}
|
|
if offset := pq.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 := pq.ctx.Limit; limit != nil {
|
|
selector.Limit(*limit)
|
|
}
|
|
return selector
|
|
}
|
|
|
|
// ProductGroupBy is the group-by builder for Product entities.
|
|
type ProductGroupBy struct {
|
|
selector
|
|
build *ProductQuery
|
|
}
|
|
|
|
// Aggregate adds the given aggregation functions to the group-by query.
|
|
func (pgb *ProductGroupBy) Aggregate(fns ...AggregateFunc) *ProductGroupBy {
|
|
pgb.fns = append(pgb.fns, fns...)
|
|
return pgb
|
|
}
|
|
|
|
// Scan applies the selector query and scans the result into the given value.
|
|
func (pgb *ProductGroupBy) Scan(ctx context.Context, v any) error {
|
|
ctx = setContextOp(ctx, pgb.build.ctx, "GroupBy")
|
|
if err := pgb.build.prepareQuery(ctx); err != nil {
|
|
return err
|
|
}
|
|
return scanWithInterceptors[*ProductQuery, *ProductGroupBy](ctx, pgb.build, pgb, pgb.build.inters, v)
|
|
}
|
|
|
|
func (pgb *ProductGroupBy) sqlScan(ctx context.Context, root *ProductQuery, v any) error {
|
|
selector := root.sqlQuery(ctx).Select()
|
|
aggregation := make([]string, 0, len(pgb.fns))
|
|
for _, fn := range pgb.fns {
|
|
aggregation = append(aggregation, fn(selector))
|
|
}
|
|
if len(selector.SelectedColumns()) == 0 {
|
|
columns := make([]string, 0, len(*pgb.flds)+len(pgb.fns))
|
|
for _, f := range *pgb.flds {
|
|
columns = append(columns, selector.C(f))
|
|
}
|
|
columns = append(columns, aggregation...)
|
|
selector.Select(columns...)
|
|
}
|
|
selector.GroupBy(selector.Columns(*pgb.flds...)...)
|
|
if err := selector.Err(); err != nil {
|
|
return err
|
|
}
|
|
rows := &sql.Rows{}
|
|
query, args := selector.Query()
|
|
if err := pgb.build.driver.Query(ctx, query, args, rows); err != nil {
|
|
return err
|
|
}
|
|
defer rows.Close()
|
|
return sql.ScanSlice(rows, v)
|
|
}
|
|
|
|
// ProductSelect is the builder for selecting fields of Product entities.
|
|
type ProductSelect struct {
|
|
*ProductQuery
|
|
selector
|
|
}
|
|
|
|
// Aggregate adds the given aggregation functions to the selector query.
|
|
func (ps *ProductSelect) Aggregate(fns ...AggregateFunc) *ProductSelect {
|
|
ps.fns = append(ps.fns, fns...)
|
|
return ps
|
|
}
|
|
|
|
// Scan applies the selector query and scans the result into the given value.
|
|
func (ps *ProductSelect) Scan(ctx context.Context, v any) error {
|
|
ctx = setContextOp(ctx, ps.ctx, "Select")
|
|
if err := ps.prepareQuery(ctx); err != nil {
|
|
return err
|
|
}
|
|
return scanWithInterceptors[*ProductQuery, *ProductSelect](ctx, ps.ProductQuery, ps, ps.inters, v)
|
|
}
|
|
|
|
func (ps *ProductSelect) sqlScan(ctx context.Context, root *ProductQuery, v any) error {
|
|
selector := root.sqlQuery(ctx)
|
|
aggregation := make([]string, 0, len(ps.fns))
|
|
for _, fn := range ps.fns {
|
|
aggregation = append(aggregation, fn(selector))
|
|
}
|
|
switch n := len(*ps.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 := ps.driver.Query(ctx, query, args, rows); err != nil {
|
|
return err
|
|
}
|
|
defer rows.Close()
|
|
return sql.ScanSlice(rows, v)
|
|
}
|