mirror of
https://github.com/hay-kot/homebox.git
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832 lines
23 KiB
Go
832 lines
23 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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"database/sql/driver"
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"fmt"
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"math"
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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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"github.com/hay-kot/content/backend/ent/group"
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"github.com/hay-kot/content/backend/ent/item"
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"github.com/hay-kot/content/backend/ent/label"
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"github.com/hay-kot/content/backend/ent/location"
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"github.com/hay-kot/content/backend/ent/predicate"
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"github.com/hay-kot/content/backend/ent/user"
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)
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// GroupQuery is the builder for querying Group entities.
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type GroupQuery struct {
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config
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limit *int
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offset *int
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unique *bool
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order []OrderFunc
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fields []string
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predicates []predicate.Group
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withUsers *UserQuery
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withLocations *LocationQuery
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withItems *ItemQuery
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withLabels *LabelQuery
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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 GroupQuery builder.
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func (gq *GroupQuery) Where(ps ...predicate.Group) *GroupQuery {
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gq.predicates = append(gq.predicates, ps...)
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return gq
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}
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// Limit adds a limit step to the query.
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func (gq *GroupQuery) Limit(limit int) *GroupQuery {
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gq.limit = &limit
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return gq
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}
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// Offset adds an offset step to the query.
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func (gq *GroupQuery) Offset(offset int) *GroupQuery {
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gq.offset = &offset
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return gq
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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 (gq *GroupQuery) Unique(unique bool) *GroupQuery {
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gq.unique = &unique
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return gq
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}
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// Order adds an order step to the query.
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func (gq *GroupQuery) Order(o ...OrderFunc) *GroupQuery {
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gq.order = append(gq.order, o...)
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return gq
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}
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// QueryUsers chains the current query on the "users" edge.
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func (gq *GroupQuery) QueryUsers() *UserQuery {
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query := &UserQuery{config: gq.config}
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query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
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if err := gq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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selector := gq.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(group.Table, group.FieldID, selector),
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sqlgraph.To(user.Table, user.FieldID),
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sqlgraph.Edge(sqlgraph.O2M, false, group.UsersTable, group.UsersColumn),
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)
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fromU = sqlgraph.SetNeighbors(gq.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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// QueryLocations chains the current query on the "locations" edge.
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func (gq *GroupQuery) QueryLocations() *LocationQuery {
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query := &LocationQuery{config: gq.config}
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query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
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if err := gq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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selector := gq.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(group.Table, group.FieldID, selector),
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sqlgraph.To(location.Table, location.FieldID),
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sqlgraph.Edge(sqlgraph.O2M, false, group.LocationsTable, group.LocationsColumn),
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)
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fromU = sqlgraph.SetNeighbors(gq.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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// QueryItems chains the current query on the "items" edge.
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func (gq *GroupQuery) QueryItems() *ItemQuery {
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query := &ItemQuery{config: gq.config}
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query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
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if err := gq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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selector := gq.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(group.Table, group.FieldID, selector),
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sqlgraph.To(item.Table, item.FieldID),
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sqlgraph.Edge(sqlgraph.O2M, false, group.ItemsTable, group.ItemsColumn),
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)
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fromU = sqlgraph.SetNeighbors(gq.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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// QueryLabels chains the current query on the "labels" edge.
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func (gq *GroupQuery) QueryLabels() *LabelQuery {
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query := &LabelQuery{config: gq.config}
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query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
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if err := gq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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selector := gq.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(group.Table, group.FieldID, selector),
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sqlgraph.To(label.Table, label.FieldID),
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sqlgraph.Edge(sqlgraph.O2M, false, group.LabelsTable, group.LabelsColumn),
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)
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fromU = sqlgraph.SetNeighbors(gq.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 Group entity from the query.
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// Returns a *NotFoundError when no Group was found.
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func (gq *GroupQuery) First(ctx context.Context) (*Group, error) {
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nodes, err := gq.Limit(1).All(ctx)
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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{group.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 (gq *GroupQuery) FirstX(ctx context.Context) *Group {
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node, err := gq.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 Group ID from the query.
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// Returns a *NotFoundError when no Group ID was found.
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func (gq *GroupQuery) FirstID(ctx context.Context) (id uuid.UUID, err error) {
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var ids []uuid.UUID
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if ids, err = gq.Limit(1).IDs(ctx); 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{group.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 (gq *GroupQuery) FirstIDX(ctx context.Context) uuid.UUID {
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id, err := gq.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 Group entity found by the query, ensuring it only returns one.
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// Returns a *NotSingularError when more than one Group entity is found.
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// Returns a *NotFoundError when no Group entities are found.
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func (gq *GroupQuery) Only(ctx context.Context) (*Group, error) {
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nodes, err := gq.Limit(2).All(ctx)
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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{group.Label}
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default:
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return nil, &NotSingularError{group.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 (gq *GroupQuery) OnlyX(ctx context.Context) *Group {
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node, err := gq.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 Group ID in the query.
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// Returns a *NotSingularError when more than one Group ID is found.
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// Returns a *NotFoundError when no entities are found.
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func (gq *GroupQuery) OnlyID(ctx context.Context) (id uuid.UUID, err error) {
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var ids []uuid.UUID
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if ids, err = gq.Limit(2).IDs(ctx); 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{group.Label}
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default:
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err = &NotSingularError{group.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 (gq *GroupQuery) OnlyIDX(ctx context.Context) uuid.UUID {
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id, err := gq.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 Groups.
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func (gq *GroupQuery) All(ctx context.Context) ([]*Group, error) {
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if err := gq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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return gq.sqlAll(ctx)
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}
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// AllX is like All, but panics if an error occurs.
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func (gq *GroupQuery) AllX(ctx context.Context) []*Group {
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nodes, err := gq.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 Group IDs.
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func (gq *GroupQuery) IDs(ctx context.Context) ([]uuid.UUID, error) {
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var ids []uuid.UUID
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if err := gq.Select(group.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 (gq *GroupQuery) IDsX(ctx context.Context) []uuid.UUID {
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ids, err := gq.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 (gq *GroupQuery) Count(ctx context.Context) (int, error) {
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if err := gq.prepareQuery(ctx); err != nil {
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return 0, err
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}
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return gq.sqlCount(ctx)
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}
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// CountX is like Count, but panics if an error occurs.
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func (gq *GroupQuery) CountX(ctx context.Context) int {
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count, err := gq.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 (gq *GroupQuery) Exist(ctx context.Context) (bool, error) {
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if err := gq.prepareQuery(ctx); err != nil {
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return false, err
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}
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return gq.sqlExist(ctx)
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}
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// ExistX is like Exist, but panics if an error occurs.
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func (gq *GroupQuery) ExistX(ctx context.Context) bool {
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exist, err := gq.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 GroupQuery 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 (gq *GroupQuery) Clone() *GroupQuery {
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if gq == nil {
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return nil
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}
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return &GroupQuery{
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config: gq.config,
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limit: gq.limit,
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offset: gq.offset,
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order: append([]OrderFunc{}, gq.order...),
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predicates: append([]predicate.Group{}, gq.predicates...),
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withUsers: gq.withUsers.Clone(),
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withLocations: gq.withLocations.Clone(),
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withItems: gq.withItems.Clone(),
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withLabels: gq.withLabels.Clone(),
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// clone intermediate query.
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sql: gq.sql.Clone(),
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path: gq.path,
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unique: gq.unique,
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}
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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 (gq *GroupQuery) WithUsers(opts ...func(*UserQuery)) *GroupQuery {
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query := &UserQuery{config: gq.config}
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for _, opt := range opts {
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opt(query)
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}
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gq.withUsers = query
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return gq
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}
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// WithLocations tells the query-builder to eager-load the nodes that are connected to
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// the "locations" edge. The optional arguments are used to configure the query builder of the edge.
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func (gq *GroupQuery) WithLocations(opts ...func(*LocationQuery)) *GroupQuery {
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query := &LocationQuery{config: gq.config}
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for _, opt := range opts {
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opt(query)
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}
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gq.withLocations = query
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return gq
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}
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// WithItems tells the query-builder to eager-load the nodes that are connected to
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// the "items" edge. The optional arguments are used to configure the query builder of the edge.
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func (gq *GroupQuery) WithItems(opts ...func(*ItemQuery)) *GroupQuery {
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query := &ItemQuery{config: gq.config}
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for _, opt := range opts {
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opt(query)
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}
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gq.withItems = query
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return gq
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}
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// WithLabels tells the query-builder to eager-load the nodes that are connected to
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// the "labels" edge. The optional arguments are used to configure the query builder of the edge.
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func (gq *GroupQuery) WithLabels(opts ...func(*LabelQuery)) *GroupQuery {
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query := &LabelQuery{config: gq.config}
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for _, opt := range opts {
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opt(query)
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}
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gq.withLabels = query
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return gq
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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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// CreatedAt time.Time `json:"created_at,omitempty"`
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// Count int `json:"count,omitempty"`
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// }
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//
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// client.Group.Query().
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// GroupBy(group.FieldCreatedAt).
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// Aggregate(ent.Count()).
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// Scan(ctx, &v)
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func (gq *GroupQuery) GroupBy(field string, fields ...string) *GroupGroupBy {
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grbuild := &GroupGroupBy{config: gq.config}
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grbuild.fields = append([]string{field}, fields...)
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grbuild.path = func(ctx context.Context) (prev *sql.Selector, err error) {
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if err := gq.prepareQuery(ctx); err != nil {
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return nil, err
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}
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return gq.sqlQuery(ctx), nil
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}
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grbuild.label = group.Label
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grbuild.flds, grbuild.scan = &grbuild.fields, 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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// CreatedAt time.Time `json:"created_at,omitempty"`
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// }
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//
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// client.Group.Query().
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// Select(group.FieldCreatedAt).
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// Scan(ctx, &v)
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func (gq *GroupQuery) Select(fields ...string) *GroupSelect {
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gq.fields = append(gq.fields, fields...)
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selbuild := &GroupSelect{GroupQuery: gq}
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selbuild.label = group.Label
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selbuild.flds, selbuild.scan = &gq.fields, selbuild.Scan
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return selbuild
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}
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func (gq *GroupQuery) prepareQuery(ctx context.Context) error {
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for _, f := range gq.fields {
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if !group.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 gq.path != nil {
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prev, err := gq.path(ctx)
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if err != nil {
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return err
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}
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gq.sql = prev
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}
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return nil
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}
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func (gq *GroupQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Group, error) {
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var (
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nodes = []*Group{}
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_spec = gq.querySpec()
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loadedTypes = [4]bool{
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gq.withUsers != nil,
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gq.withLocations != nil,
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gq.withItems != nil,
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gq.withLabels != nil,
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}
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)
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_spec.ScanValues = func(columns []string) ([]interface{}, error) {
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return (*Group).scanValues(nil, columns)
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}
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_spec.Assign = func(columns []string, values []interface{}) error {
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node := &Group{config: gq.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, gq.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 := gq.withUsers; query != nil {
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if err := gq.loadUsers(ctx, query, nodes,
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func(n *Group) { n.Edges.Users = []*User{} },
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func(n *Group, e *User) { n.Edges.Users = append(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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if query := gq.withLocations; query != nil {
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if err := gq.loadLocations(ctx, query, nodes,
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func(n *Group) { n.Edges.Locations = []*Location{} },
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func(n *Group, e *Location) { n.Edges.Locations = append(n.Edges.Locations, e) }); err != nil {
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return nil, err
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}
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}
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if query := gq.withItems; query != nil {
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if err := gq.loadItems(ctx, query, nodes,
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func(n *Group) { n.Edges.Items = []*Item{} },
|
|
func(n *Group, e *Item) { n.Edges.Items = append(n.Edges.Items, e) }); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
if query := gq.withLabels; query != nil {
|
|
if err := gq.loadLabels(ctx, query, nodes,
|
|
func(n *Group) { n.Edges.Labels = []*Label{} },
|
|
func(n *Group, e *Label) { n.Edges.Labels = append(n.Edges.Labels, 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[uuid.UUID]*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) loadLocations(ctx context.Context, query *LocationQuery, nodes []*Group, init func(*Group), assign func(*Group, *Location)) error {
|
|
fks := make([]driver.Value, 0, len(nodes))
|
|
nodeids := make(map[uuid.UUID]*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.Location(func(s *sql.Selector) {
|
|
s.Where(sql.InValues(group.LocationsColumn, fks...))
|
|
}))
|
|
neighbors, err := query.All(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, n := range neighbors {
|
|
fk := n.group_locations
|
|
if fk == nil {
|
|
return fmt.Errorf(`foreign-key "group_locations" is nil for node %v`, n.ID)
|
|
}
|
|
node, ok := nodeids[*fk]
|
|
if !ok {
|
|
return fmt.Errorf(`unexpected foreign-key "group_locations" returned %v for node %v`, *fk, n.ID)
|
|
}
|
|
assign(node, n)
|
|
}
|
|
return nil
|
|
}
|
|
func (gq *GroupQuery) loadItems(ctx context.Context, query *ItemQuery, nodes []*Group, init func(*Group), assign func(*Group, *Item)) error {
|
|
fks := make([]driver.Value, 0, len(nodes))
|
|
nodeids := make(map[uuid.UUID]*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.Item(func(s *sql.Selector) {
|
|
s.Where(sql.InValues(group.ItemsColumn, fks...))
|
|
}))
|
|
neighbors, err := query.All(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, n := range neighbors {
|
|
fk := n.group_items
|
|
if fk == nil {
|
|
return fmt.Errorf(`foreign-key "group_items" is nil for node %v`, n.ID)
|
|
}
|
|
node, ok := nodeids[*fk]
|
|
if !ok {
|
|
return fmt.Errorf(`unexpected foreign-key "group_items" returned %v for node %v`, *fk, n.ID)
|
|
}
|
|
assign(node, n)
|
|
}
|
|
return nil
|
|
}
|
|
func (gq *GroupQuery) loadLabels(ctx context.Context, query *LabelQuery, nodes []*Group, init func(*Group), assign func(*Group, *Label)) error {
|
|
fks := make([]driver.Value, 0, len(nodes))
|
|
nodeids := make(map[uuid.UUID]*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.Label(func(s *sql.Selector) {
|
|
s.Where(sql.InValues(group.LabelsColumn, fks...))
|
|
}))
|
|
neighbors, err := query.All(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, n := range neighbors {
|
|
fk := n.group_labels
|
|
if fk == nil {
|
|
return fmt.Errorf(`foreign-key "group_labels" is nil for node %v`, n.ID)
|
|
}
|
|
node, ok := nodeids[*fk]
|
|
if !ok {
|
|
return fmt.Errorf(`unexpected foreign-key "group_labels" 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.fields
|
|
if len(gq.fields) > 0 {
|
|
_spec.Unique = gq.unique != nil && *gq.unique
|
|
}
|
|
return sqlgraph.CountNodes(ctx, gq.driver, _spec)
|
|
}
|
|
|
|
func (gq *GroupQuery) sqlExist(ctx context.Context) (bool, error) {
|
|
n, err := gq.sqlCount(ctx)
|
|
if err != nil {
|
|
return false, fmt.Errorf("ent: check existence: %w", err)
|
|
}
|
|
return n > 0, nil
|
|
}
|
|
|
|
func (gq *GroupQuery) querySpec() *sqlgraph.QuerySpec {
|
|
_spec := &sqlgraph.QuerySpec{
|
|
Node: &sqlgraph.NodeSpec{
|
|
Table: group.Table,
|
|
Columns: group.Columns,
|
|
ID: &sqlgraph.FieldSpec{
|
|
Type: field.TypeUUID,
|
|
Column: group.FieldID,
|
|
},
|
|
},
|
|
From: gq.sql,
|
|
Unique: true,
|
|
}
|
|
if unique := gq.unique; unique != nil {
|
|
_spec.Unique = *unique
|
|
}
|
|
if fields := gq.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.limit; limit != nil {
|
|
_spec.Limit = *limit
|
|
}
|
|
if offset := gq.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.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.unique != nil && *gq.unique {
|
|
selector.Distinct()
|
|
}
|
|
for _, p := range gq.predicates {
|
|
p(selector)
|
|
}
|
|
for _, p := range gq.order {
|
|
p(selector)
|
|
}
|
|
if offset := gq.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.limit; limit != nil {
|
|
selector.Limit(*limit)
|
|
}
|
|
return selector
|
|
}
|
|
|
|
// GroupGroupBy is the group-by builder for Group entities.
|
|
type GroupGroupBy struct {
|
|
config
|
|
selector
|
|
fields []string
|
|
fns []AggregateFunc
|
|
// intermediate query (i.e. traversal path).
|
|
sql *sql.Selector
|
|
path func(context.Context) (*sql.Selector, error)
|
|
}
|
|
|
|
// 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 group-by query and scans the result into the given value.
|
|
func (ggb *GroupGroupBy) Scan(ctx context.Context, v interface{}) error {
|
|
query, err := ggb.path(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
ggb.sql = query
|
|
return ggb.sqlScan(ctx, v)
|
|
}
|
|
|
|
func (ggb *GroupGroupBy) sqlScan(ctx context.Context, v interface{}) error {
|
|
for _, f := range ggb.fields {
|
|
if !group.ValidColumn(f) {
|
|
return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
|
|
}
|
|
}
|
|
selector := ggb.sqlQuery()
|
|
if err := selector.Err(); err != nil {
|
|
return err
|
|
}
|
|
rows := &sql.Rows{}
|
|
query, args := selector.Query()
|
|
if err := ggb.driver.Query(ctx, query, args, rows); err != nil {
|
|
return err
|
|
}
|
|
defer rows.Close()
|
|
return sql.ScanSlice(rows, v)
|
|
}
|
|
|
|
func (ggb *GroupGroupBy) sqlQuery() *sql.Selector {
|
|
selector := ggb.sql.Select()
|
|
aggregation := make([]string, 0, len(ggb.fns))
|
|
for _, fn := range ggb.fns {
|
|
aggregation = append(aggregation, fn(selector))
|
|
}
|
|
// If no columns were selected in a custom aggregation function, the default
|
|
// selection is the fields used for "group-by", and the aggregation functions.
|
|
if len(selector.SelectedColumns()) == 0 {
|
|
columns := make([]string, 0, len(ggb.fields)+len(ggb.fns))
|
|
for _, f := range ggb.fields {
|
|
columns = append(columns, selector.C(f))
|
|
}
|
|
columns = append(columns, aggregation...)
|
|
selector.Select(columns...)
|
|
}
|
|
return selector.GroupBy(selector.Columns(ggb.fields...)...)
|
|
}
|
|
|
|
// GroupSelect is the builder for selecting fields of Group entities.
|
|
type GroupSelect struct {
|
|
*GroupQuery
|
|
selector
|
|
// intermediate query (i.e. traversal path).
|
|
sql *sql.Selector
|
|
}
|
|
|
|
// Scan applies the selector query and scans the result into the given value.
|
|
func (gs *GroupSelect) Scan(ctx context.Context, v interface{}) error {
|
|
if err := gs.prepareQuery(ctx); err != nil {
|
|
return err
|
|
}
|
|
gs.sql = gs.GroupQuery.sqlQuery(ctx)
|
|
return gs.sqlScan(ctx, v)
|
|
}
|
|
|
|
func (gs *GroupSelect) sqlScan(ctx context.Context, v interface{}) error {
|
|
rows := &sql.Rows{}
|
|
query, args := gs.sql.Query()
|
|
if err := gs.driver.Query(ctx, query, args, rows); err != nil {
|
|
return err
|
|
}
|
|
defer rows.Close()
|
|
return sql.ScanSlice(rows, v)
|
|
}
|