Первый прототип с основными возможностями
This commit is contained in:
638
ent/link_query.go
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638
ent/link_query.go
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@@ -0,0 +1,638 @@
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// 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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"database/sql/driver"
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"fmt"
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"math"
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"code.gurenya.net/carlsmei/muninn-aio/ent/link"
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"code.gurenya.net/carlsmei/muninn-aio/ent/predicate"
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"code.gurenya.net/carlsmei/muninn-aio/ent/user"
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"entgo.io/ent"
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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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"github.com/google/uuid"
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)
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// LinkQuery is the builder for querying Link entities.
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type LinkQuery struct {
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config
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ctx *QueryContext
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order []link.OrderOption
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inters []Interceptor
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predicates []predicate.Link
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withOwner *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 LinkQuery builder.
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func (lq *LinkQuery) Where(ps ...predicate.Link) *LinkQuery {
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lq.predicates = append(lq.predicates, ps...)
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return lq
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}
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// Limit the number of records to be returned by this query.
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func (lq *LinkQuery) Limit(limit int) *LinkQuery {
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lq.ctx.Limit = &limit
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return lq
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}
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// Offset to start from.
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func (lq *LinkQuery) Offset(offset int) *LinkQuery {
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lq.ctx.Offset = &offset
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return lq
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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 (lq *LinkQuery) Unique(unique bool) *LinkQuery {
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lq.ctx.Unique = &unique
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return lq
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}
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// Order specifies how the records should be ordered.
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func (lq *LinkQuery) Order(o ...link.OrderOption) *LinkQuery {
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lq.order = append(lq.order, o...)
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return lq
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}
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// QueryOwner chains the current query on the "owner" edge.
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func (lq *LinkQuery) QueryOwner() *UserQuery {
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query := (&UserClient{config: lq.config}).Query()
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query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
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if err := lq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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selector := lq.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(link.Table, link.FieldID, selector),
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sqlgraph.To(user.Table, user.FieldID),
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sqlgraph.Edge(sqlgraph.M2M, true, link.OwnerTable, link.OwnerPrimaryKey...),
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)
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fromU = sqlgraph.SetNeighbors(lq.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 Link entity from the query.
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// Returns a *NotFoundError when no Link was found.
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func (lq *LinkQuery) First(ctx context.Context) (*Link, error) {
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nodes, err := lq.Limit(1).All(setContextOp(ctx, lq.ctx, ent.OpQueryFirst))
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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{link.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 (lq *LinkQuery) FirstX(ctx context.Context) *Link {
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node, err := lq.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 Link ID from the query.
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// Returns a *NotFoundError when no Link ID was found.
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func (lq *LinkQuery) FirstID(ctx context.Context) (id uuid.UUID, err error) {
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var ids []uuid.UUID
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if ids, err = lq.Limit(1).IDs(setContextOp(ctx, lq.ctx, ent.OpQueryFirstID)); 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{link.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 (lq *LinkQuery) FirstIDX(ctx context.Context) uuid.UUID {
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id, err := lq.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 Link entity found by the query, ensuring it only returns one.
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// Returns a *NotSingularError when more than one Link entity is found.
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// Returns a *NotFoundError when no Link entities are found.
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func (lq *LinkQuery) Only(ctx context.Context) (*Link, error) {
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nodes, err := lq.Limit(2).All(setContextOp(ctx, lq.ctx, ent.OpQueryOnly))
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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{link.Label}
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default:
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return nil, &NotSingularError{link.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 (lq *LinkQuery) OnlyX(ctx context.Context) *Link {
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node, err := lq.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 Link ID in the query.
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// Returns a *NotSingularError when more than one Link ID is found.
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// Returns a *NotFoundError when no entities are found.
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func (lq *LinkQuery) OnlyID(ctx context.Context) (id uuid.UUID, err error) {
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var ids []uuid.UUID
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if ids, err = lq.Limit(2).IDs(setContextOp(ctx, lq.ctx, ent.OpQueryOnlyID)); 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{link.Label}
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default:
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err = &NotSingularError{link.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 (lq *LinkQuery) OnlyIDX(ctx context.Context) uuid.UUID {
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id, err := lq.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 Links.
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func (lq *LinkQuery) All(ctx context.Context) ([]*Link, error) {
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ctx = setContextOp(ctx, lq.ctx, ent.OpQueryAll)
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if err := lq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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qr := querierAll[[]*Link, *LinkQuery]()
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return withInterceptors[[]*Link](ctx, lq, qr, lq.inters)
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}
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// AllX is like All, but panics if an error occurs.
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func (lq *LinkQuery) AllX(ctx context.Context) []*Link {
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nodes, err := lq.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 Link IDs.
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func (lq *LinkQuery) IDs(ctx context.Context) (ids []uuid.UUID, err error) {
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if lq.ctx.Unique == nil && lq.path != nil {
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lq.Unique(true)
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}
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ctx = setContextOp(ctx, lq.ctx, ent.OpQueryIDs)
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if err = lq.Select(link.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 (lq *LinkQuery) IDsX(ctx context.Context) []uuid.UUID {
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ids, err := lq.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 (lq *LinkQuery) Count(ctx context.Context) (int, error) {
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ctx = setContextOp(ctx, lq.ctx, ent.OpQueryCount)
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if err := lq.prepareQuery(ctx); err != nil {
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return 0, err
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}
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return withInterceptors[int](ctx, lq, querierCount[*LinkQuery](), lq.inters)
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}
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// CountX is like Count, but panics if an error occurs.
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func (lq *LinkQuery) CountX(ctx context.Context) int {
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count, err := lq.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 (lq *LinkQuery) Exist(ctx context.Context) (bool, error) {
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ctx = setContextOp(ctx, lq.ctx, ent.OpQueryExist)
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switch _, err := lq.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 (lq *LinkQuery) ExistX(ctx context.Context) bool {
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exist, err := lq.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 LinkQuery 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 (lq *LinkQuery) Clone() *LinkQuery {
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if lq == nil {
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return nil
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}
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return &LinkQuery{
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config: lq.config,
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ctx: lq.ctx.Clone(),
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order: append([]link.OrderOption{}, lq.order...),
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inters: append([]Interceptor{}, lq.inters...),
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predicates: append([]predicate.Link{}, lq.predicates...),
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withOwner: lq.withOwner.Clone(),
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// clone intermediate query.
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sql: lq.sql.Clone(),
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path: lq.path,
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}
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}
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// WithOwner tells the query-builder to eager-load the nodes that are connected to
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// the "owner" edge. The optional arguments are used to configure the query builder of the edge.
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func (lq *LinkQuery) WithOwner(opts ...func(*UserQuery)) *LinkQuery {
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query := (&UserClient{config: lq.config}).Query()
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for _, opt := range opts {
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opt(query)
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}
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lq.withOwner = query
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return lq
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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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// Key string `json:"key,omitempty"`
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// Count int `json:"count,omitempty"`
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// }
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//
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// client.Link.Query().
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// GroupBy(link.FieldKey).
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// Aggregate(ent.Count()).
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// Scan(ctx, &v)
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func (lq *LinkQuery) GroupBy(field string, fields ...string) *LinkGroupBy {
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lq.ctx.Fields = append([]string{field}, fields...)
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grbuild := &LinkGroupBy{build: lq}
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grbuild.flds = &lq.ctx.Fields
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grbuild.label = link.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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// Key string `json:"key,omitempty"`
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// }
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//
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// client.Link.Query().
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// Select(link.FieldKey).
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// Scan(ctx, &v)
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func (lq *LinkQuery) Select(fields ...string) *LinkSelect {
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lq.ctx.Fields = append(lq.ctx.Fields, fields...)
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sbuild := &LinkSelect{LinkQuery: lq}
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sbuild.label = link.Label
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sbuild.flds, sbuild.scan = &lq.ctx.Fields, sbuild.Scan
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return sbuild
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}
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// Aggregate returns a LinkSelect configured with the given aggregations.
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func (lq *LinkQuery) Aggregate(fns ...AggregateFunc) *LinkSelect {
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return lq.Select().Aggregate(fns...)
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}
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func (lq *LinkQuery) prepareQuery(ctx context.Context) error {
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for _, inter := range lq.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, lq); 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 lq.ctx.Fields {
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if !link.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 lq.path != nil {
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prev, err := lq.path(ctx)
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if err != nil {
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return err
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}
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lq.sql = prev
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}
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return nil
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}
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func (lq *LinkQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Link, error) {
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var (
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nodes = []*Link{}
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_spec = lq.querySpec()
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loadedTypes = [1]bool{
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lq.withOwner != 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 (*Link).scanValues(nil, columns)
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}
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_spec.Assign = func(columns []string, values []any) error {
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node := &Link{config: lq.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, lq.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 := lq.withOwner; query != nil {
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if err := lq.loadOwner(ctx, query, nodes,
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func(n *Link) { n.Edges.Owner = []*User{} },
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func(n *Link, e *User) { n.Edges.Owner = append(n.Edges.Owner, 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 (lq *LinkQuery) loadOwner(ctx context.Context, query *UserQuery, nodes []*Link, init func(*Link), assign func(*Link, *User)) error {
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edgeIDs := make([]driver.Value, len(nodes))
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byID := make(map[uuid.UUID]*Link)
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nids := make(map[uuid.UUID]map[*Link]struct{})
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for i, node := range nodes {
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edgeIDs[i] = node.ID
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byID[node.ID] = node
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if init != nil {
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init(node)
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}
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}
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query.Where(func(s *sql.Selector) {
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joinT := sql.Table(link.OwnerTable)
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s.Join(joinT).On(s.C(user.FieldID), joinT.C(link.OwnerPrimaryKey[0]))
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s.Where(sql.InValues(joinT.C(link.OwnerPrimaryKey[1]), edgeIDs...))
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columns := s.SelectedColumns()
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s.Select(joinT.C(link.OwnerPrimaryKey[1]))
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s.AppendSelect(columns...)
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s.SetDistinct(false)
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})
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if err := query.prepareQuery(ctx); err != nil {
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return err
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}
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qr := QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
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return query.sqlAll(ctx, func(_ context.Context, spec *sqlgraph.QuerySpec) {
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assign := spec.Assign
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values := spec.ScanValues
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spec.ScanValues = func(columns []string) ([]any, error) {
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values, err := values(columns[1:])
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if err != nil {
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return nil, err
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}
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return append([]any{new(uuid.UUID)}, values...), nil
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}
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spec.Assign = func(columns []string, values []any) error {
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outValue := *values[0].(*uuid.UUID)
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inValue := *values[1].(*uuid.UUID)
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if nids[inValue] == nil {
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nids[inValue] = map[*Link]struct{}{byID[outValue]: {}}
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return assign(columns[1:], values[1:])
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}
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nids[inValue][byID[outValue]] = struct{}{}
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return nil
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}
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})
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})
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neighbors, err := withInterceptors[[]*User](ctx, query, qr, query.inters)
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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 {
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nodes, ok := nids[n.ID]
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if !ok {
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return fmt.Errorf(`unexpected "owner" node returned %v`, n.ID)
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}
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for kn := range nodes {
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assign(kn, n)
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}
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}
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return nil
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}
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func (lq *LinkQuery) sqlCount(ctx context.Context) (int, error) {
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_spec := lq.querySpec()
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_spec.Node.Columns = lq.ctx.Fields
|
||||
if len(lq.ctx.Fields) > 0 {
|
||||
_spec.Unique = lq.ctx.Unique != nil && *lq.ctx.Unique
|
||||
}
|
||||
return sqlgraph.CountNodes(ctx, lq.driver, _spec)
|
||||
}
|
||||
|
||||
func (lq *LinkQuery) querySpec() *sqlgraph.QuerySpec {
|
||||
_spec := sqlgraph.NewQuerySpec(link.Table, link.Columns, sqlgraph.NewFieldSpec(link.FieldID, field.TypeUUID))
|
||||
_spec.From = lq.sql
|
||||
if unique := lq.ctx.Unique; unique != nil {
|
||||
_spec.Unique = *unique
|
||||
} else if lq.path != nil {
|
||||
_spec.Unique = true
|
||||
}
|
||||
if fields := lq.ctx.Fields; len(fields) > 0 {
|
||||
_spec.Node.Columns = make([]string, 0, len(fields))
|
||||
_spec.Node.Columns = append(_spec.Node.Columns, link.FieldID)
|
||||
for i := range fields {
|
||||
if fields[i] != link.FieldID {
|
||||
_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
|
||||
}
|
||||
}
|
||||
}
|
||||
if ps := lq.predicates; len(ps) > 0 {
|
||||
_spec.Predicate = func(selector *sql.Selector) {
|
||||
for i := range ps {
|
||||
ps[i](selector)
|
||||
}
|
||||
}
|
||||
}
|
||||
if limit := lq.ctx.Limit; limit != nil {
|
||||
_spec.Limit = *limit
|
||||
}
|
||||
if offset := lq.ctx.Offset; offset != nil {
|
||||
_spec.Offset = *offset
|
||||
}
|
||||
if ps := lq.order; len(ps) > 0 {
|
||||
_spec.Order = func(selector *sql.Selector) {
|
||||
for i := range ps {
|
||||
ps[i](selector)
|
||||
}
|
||||
}
|
||||
}
|
||||
return _spec
|
||||
}
|
||||
|
||||
func (lq *LinkQuery) sqlQuery(ctx context.Context) *sql.Selector {
|
||||
builder := sql.Dialect(lq.driver.Dialect())
|
||||
t1 := builder.Table(link.Table)
|
||||
columns := lq.ctx.Fields
|
||||
if len(columns) == 0 {
|
||||
columns = link.Columns
|
||||
}
|
||||
selector := builder.Select(t1.Columns(columns...)...).From(t1)
|
||||
if lq.sql != nil {
|
||||
selector = lq.sql
|
||||
selector.Select(selector.Columns(columns...)...)
|
||||
}
|
||||
if lq.ctx.Unique != nil && *lq.ctx.Unique {
|
||||
selector.Distinct()
|
||||
}
|
||||
for _, p := range lq.predicates {
|
||||
p(selector)
|
||||
}
|
||||
for _, p := range lq.order {
|
||||
p(selector)
|
||||
}
|
||||
if offset := lq.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 := lq.ctx.Limit; limit != nil {
|
||||
selector.Limit(*limit)
|
||||
}
|
||||
return selector
|
||||
}
|
||||
|
||||
// LinkGroupBy is the group-by builder for Link entities.
|
||||
type LinkGroupBy struct {
|
||||
selector
|
||||
build *LinkQuery
|
||||
}
|
||||
|
||||
// Aggregate adds the given aggregation functions to the group-by query.
|
||||
func (lgb *LinkGroupBy) Aggregate(fns ...AggregateFunc) *LinkGroupBy {
|
||||
lgb.fns = append(lgb.fns, fns...)
|
||||
return lgb
|
||||
}
|
||||
|
||||
// Scan applies the selector query and scans the result into the given value.
|
||||
func (lgb *LinkGroupBy) Scan(ctx context.Context, v any) error {
|
||||
ctx = setContextOp(ctx, lgb.build.ctx, ent.OpQueryGroupBy)
|
||||
if err := lgb.build.prepareQuery(ctx); err != nil {
|
||||
return err
|
||||
}
|
||||
return scanWithInterceptors[*LinkQuery, *LinkGroupBy](ctx, lgb.build, lgb, lgb.build.inters, v)
|
||||
}
|
||||
|
||||
func (lgb *LinkGroupBy) sqlScan(ctx context.Context, root *LinkQuery, v any) error {
|
||||
selector := root.sqlQuery(ctx).Select()
|
||||
aggregation := make([]string, 0, len(lgb.fns))
|
||||
for _, fn := range lgb.fns {
|
||||
aggregation = append(aggregation, fn(selector))
|
||||
}
|
||||
if len(selector.SelectedColumns()) == 0 {
|
||||
columns := make([]string, 0, len(*lgb.flds)+len(lgb.fns))
|
||||
for _, f := range *lgb.flds {
|
||||
columns = append(columns, selector.C(f))
|
||||
}
|
||||
columns = append(columns, aggregation...)
|
||||
selector.Select(columns...)
|
||||
}
|
||||
selector.GroupBy(selector.Columns(*lgb.flds...)...)
|
||||
if err := selector.Err(); err != nil {
|
||||
return err
|
||||
}
|
||||
rows := &sql.Rows{}
|
||||
query, args := selector.Query()
|
||||
if err := lgb.build.driver.Query(ctx, query, args, rows); err != nil {
|
||||
return err
|
||||
}
|
||||
defer rows.Close()
|
||||
return sql.ScanSlice(rows, v)
|
||||
}
|
||||
|
||||
// LinkSelect is the builder for selecting fields of Link entities.
|
||||
type LinkSelect struct {
|
||||
*LinkQuery
|
||||
selector
|
||||
}
|
||||
|
||||
// Aggregate adds the given aggregation functions to the selector query.
|
||||
func (ls *LinkSelect) Aggregate(fns ...AggregateFunc) *LinkSelect {
|
||||
ls.fns = append(ls.fns, fns...)
|
||||
return ls
|
||||
}
|
||||
|
||||
// Scan applies the selector query and scans the result into the given value.
|
||||
func (ls *LinkSelect) Scan(ctx context.Context, v any) error {
|
||||
ctx = setContextOp(ctx, ls.ctx, ent.OpQuerySelect)
|
||||
if err := ls.prepareQuery(ctx); err != nil {
|
||||
return err
|
||||
}
|
||||
return scanWithInterceptors[*LinkQuery, *LinkSelect](ctx, ls.LinkQuery, ls, ls.inters, v)
|
||||
}
|
||||
|
||||
func (ls *LinkSelect) sqlScan(ctx context.Context, root *LinkQuery, v any) error {
|
||||
selector := root.sqlQuery(ctx)
|
||||
aggregation := make([]string, 0, len(ls.fns))
|
||||
for _, fn := range ls.fns {
|
||||
aggregation = append(aggregation, fn(selector))
|
||||
}
|
||||
switch n := len(*ls.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 := ls.driver.Query(ctx, query, args, rows); err != nil {
|
||||
return err
|
||||
}
|
||||
defer rows.Close()
|
||||
return sql.ScanSlice(rows, v)
|
||||
}
|
||||
Reference in New Issue
Block a user