kratos/examples/blog/internal/data/ent/client.go

// Code generated by entc, DO NOT EDIT.

package ent

import (
	"context"
	"fmt"
	"log"

	"github.com/go-kratos/kratos/examples/blog/internal/data/ent/migrate"

	"github.com/go-kratos/kratos/examples/blog/internal/data/ent/article"
	"github.com/go-kratos/kratos/examples/blog/internal/data/ent/comment"
	"github.com/go-kratos/kratos/examples/blog/internal/data/ent/tag"

	"entgo.io/ent/dialect"
	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/dialect/sql/sqlgraph"
)

// Client is the client that holds all ent builders.
type Client struct {
	config
	// Schema is the client for creating, migrating and dropping schema.
	Schema *migrate.Schema
	// Article is the client for interacting with the Article builders.
	Article *ArticleClient
	// Comment is the client for interacting with the Comment builders.
	Comment *CommentClient
	// Tag is the client for interacting with the Tag builders.
	Tag *TagClient
}

// NewClient creates a new client configured with the given options.
func NewClient(opts ...Option) *Client {
	cfg := config{log: log.Println, hooks: &hooks{}}
	cfg.options(opts...)
	client := &Client{config: cfg}
	client.init()
	return client
}

func (c *Client) init() {
	c.Schema = migrate.NewSchema(c.driver)
	c.Article = NewArticleClient(c.config)
	c.Comment = NewCommentClient(c.config)
	c.Tag = NewTagClient(c.config)
}

// Open opens a database/sql.DB specified by the driver name and
// the data source name, and returns a new client attached to it.
// Optional parameters can be added for configuring the client.
func Open(driverName, dataSourceName string, options ...Option) (*Client, error) {
	switch driverName {
	case dialect.MySQL, dialect.Postgres, dialect.SQLite:
		drv, err := sql.Open(driverName, dataSourceName)
		if err != nil {
			return nil, err
		}
		return NewClient(append(options, Driver(drv))...), nil
	default:
		return nil, fmt.Errorf("unsupported driver: %q", driverName)
	}
}

// Tx returns a new transactional client. The provided context
// is used until the transaction is committed or rolled back.
func (c *Client) Tx(ctx context.Context) (*Tx, error) {
	if _, ok := c.driver.(*txDriver); ok {
		return nil, fmt.Errorf("ent: cannot start a transaction within a transaction")
	}
	tx, err := newTx(ctx, c.driver)
	if err != nil {
		return nil, fmt.Errorf("ent: starting a transaction: %v", err)
	}
	cfg := c.config
	cfg.driver = tx
	return &Tx{
		ctx:     ctx,
		config:  cfg,
		Article: NewArticleClient(cfg),
		Comment: NewCommentClient(cfg),
		Tag:     NewTagClient(cfg),
	}, nil
}

// BeginTx returns a transactional client with specified options.
func (c *Client) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error) {
	if _, ok := c.driver.(*txDriver); ok {
		return nil, fmt.Errorf("ent: cannot start a transaction within a transaction")
	}
	tx, err := c.driver.(interface {
		BeginTx(context.Context, *sql.TxOptions) (dialect.Tx, error)
	}).BeginTx(ctx, opts)
	if err != nil {
		return nil, fmt.Errorf("ent: starting a transaction: %v", err)
	}
	cfg := c.config
	cfg.driver = &txDriver{tx: tx, drv: c.driver}
	return &Tx{
		config:  cfg,
		Article: NewArticleClient(cfg),
		Comment: NewCommentClient(cfg),
		Tag:     NewTagClient(cfg),
	}, nil
}

// Debug returns a new debug-client. It's used to get verbose logging on specific operations.
//
//	client.Debug().
//		Article.
//		Query().
//		Count(ctx)
//
func (c *Client) Debug() *Client {
	if c.debug {
		return c
	}
	cfg := c.config
	cfg.driver = dialect.Debug(c.driver, c.log)
	client := &Client{config: cfg}
	client.init()
	return client
}

// Close closes the database connection and prevents new queries from starting.
func (c *Client) Close() error {
	return c.driver.Close()
}

// Use adds the mutation hooks to all the entity clients.
// In order to add hooks to a specific client, call: `client.Node.Use(...)`.
func (c *Client) Use(hooks ...Hook) {
	c.Article.Use(hooks...)
	c.Comment.Use(hooks...)
	c.Tag.Use(hooks...)
}

// ArticleClient is a client for the Article schema.
type ArticleClient struct {
	config
}

// NewArticleClient returns a client for the Article from the given config.
func NewArticleClient(c config) *ArticleClient {
	return &ArticleClient{config: c}
}

// Use adds a list of mutation hooks to the hooks stack.
// A call to `Use(f, g, h)` equals to `article.Hooks(f(g(h())))`.
func (c *ArticleClient) Use(hooks ...Hook) {
	c.hooks.Article = append(c.hooks.Article, hooks...)
}

// Create returns a create builder for Article.
func (c *ArticleClient) Create() *ArticleCreate {
	mutation := newArticleMutation(c.config, OpCreate)
	return &ArticleCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// CreateBulk returns a builder for creating a bulk of Article entities.
func (c *ArticleClient) CreateBulk(builders ...*ArticleCreate) *ArticleCreateBulk {
	return &ArticleCreateBulk{config: c.config, builders: builders}
}

// Update returns an update builder for Article.
func (c *ArticleClient) Update() *ArticleUpdate {
	mutation := newArticleMutation(c.config, OpUpdate)
	return &ArticleUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// UpdateOne returns an update builder for the given entity.
func (c *ArticleClient) UpdateOne(a *Article) *ArticleUpdateOne {
	mutation := newArticleMutation(c.config, OpUpdateOne, withArticle(a))
	return &ArticleUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// UpdateOneID returns an update builder for the given id.
func (c *ArticleClient) UpdateOneID(id int64) *ArticleUpdateOne {
	mutation := newArticleMutation(c.config, OpUpdateOne, withArticleID(id))
	return &ArticleUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// Delete returns a delete builder for Article.
func (c *ArticleClient) Delete() *ArticleDelete {
	mutation := newArticleMutation(c.config, OpDelete)
	return &ArticleDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// DeleteOne returns a delete builder for the given entity.
func (c *ArticleClient) DeleteOne(a *Article) *ArticleDeleteOne {
	return c.DeleteOneID(a.ID)
}

// DeleteOneID returns a delete builder for the given id.
func (c *ArticleClient) DeleteOneID(id int64) *ArticleDeleteOne {
	builder := c.Delete().Where(article.ID(id))
	builder.mutation.id = &id
	builder.mutation.op = OpDeleteOne
	return &ArticleDeleteOne{builder}
}

// Query returns a query builder for Article.
func (c *ArticleClient) Query() *ArticleQuery {
	return &ArticleQuery{config: c.config}
}

// Get returns a Article entity by its id.
func (c *ArticleClient) Get(ctx context.Context, id int64) (*Article, error) {
	return c.Query().Where(article.ID(id)).Only(ctx)
}

// GetX is like Get, but panics if an error occurs.
func (c *ArticleClient) GetX(ctx context.Context, id int64) *Article {
	obj, err := c.Get(ctx, id)
	if err != nil {
		panic(err)
	}
	return obj
}

// QueryComments queries the comments edge of a Article.
func (c *ArticleClient) QueryComments(a *Article) *CommentQuery {
	query := &CommentQuery{config: c.config}
	query.path = func(ctx context.Context) (fromV *sql.Selector, _ error) {
		id := a.ID
		step := sqlgraph.NewStep(
			sqlgraph.From(article.Table, article.FieldID, id),
			sqlgraph.To(comment.Table, comment.FieldID),
			sqlgraph.Edge(sqlgraph.O2M, false, article.CommentsTable, article.CommentsColumn),
		)
		fromV = sqlgraph.Neighbors(a.driver.Dialect(), step)
		return fromV, nil
	}
	return query
}

// QueryTags queries the tags edge of a Article.
func (c *ArticleClient) QueryTags(a *Article) *TagQuery {
	query := &TagQuery{config: c.config}
	query.path = func(ctx context.Context) (fromV *sql.Selector, _ error) {
		id := a.ID
		step := sqlgraph.NewStep(
			sqlgraph.From(article.Table, article.FieldID, id),
			sqlgraph.To(tag.Table, tag.FieldID),
			sqlgraph.Edge(sqlgraph.M2M, true, article.TagsTable, article.TagsPrimaryKey...),
		)
		fromV = sqlgraph.Neighbors(a.driver.Dialect(), step)
		return fromV, nil
	}
	return query
}

// Hooks returns the client hooks.
func (c *ArticleClient) Hooks() []Hook {
	return c.hooks.Article
}

// CommentClient is a client for the Comment schema.
type CommentClient struct {
	config
}

// NewCommentClient returns a client for the Comment from the given config.
func NewCommentClient(c config) *CommentClient {
	return &CommentClient{config: c}
}

// Use adds a list of mutation hooks to the hooks stack.
// A call to `Use(f, g, h)` equals to `comment.Hooks(f(g(h())))`.
func (c *CommentClient) Use(hooks ...Hook) {
	c.hooks.Comment = append(c.hooks.Comment, hooks...)
}

// Create returns a create builder for Comment.
func (c *CommentClient) Create() *CommentCreate {
	mutation := newCommentMutation(c.config, OpCreate)
	return &CommentCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// CreateBulk returns a builder for creating a bulk of Comment entities.
func (c *CommentClient) CreateBulk(builders ...*CommentCreate) *CommentCreateBulk {
	return &CommentCreateBulk{config: c.config, builders: builders}
}

// Update returns an update builder for Comment.
func (c *CommentClient) Update() *CommentUpdate {
	mutation := newCommentMutation(c.config, OpUpdate)
	return &CommentUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// UpdateOne returns an update builder for the given entity.
func (c *CommentClient) UpdateOne(co *Comment) *CommentUpdateOne {
	mutation := newCommentMutation(c.config, OpUpdateOne, withComment(co))
	return &CommentUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// UpdateOneID returns an update builder for the given id.
func (c *CommentClient) UpdateOneID(id int64) *CommentUpdateOne {
	mutation := newCommentMutation(c.config, OpUpdateOne, withCommentID(id))
	return &CommentUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// Delete returns a delete builder for Comment.
func (c *CommentClient) Delete() *CommentDelete {
	mutation := newCommentMutation(c.config, OpDelete)
	return &CommentDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// DeleteOne returns a delete builder for the given entity.
func (c *CommentClient) DeleteOne(co *Comment) *CommentDeleteOne {
	return c.DeleteOneID(co.ID)
}

// DeleteOneID returns a delete builder for the given id.
func (c *CommentClient) DeleteOneID(id int64) *CommentDeleteOne {
	builder := c.Delete().Where(comment.ID(id))
	builder.mutation.id = &id
	builder.mutation.op = OpDeleteOne
	return &CommentDeleteOne{builder}
}

// Query returns a query builder for Comment.
func (c *CommentClient) Query() *CommentQuery {
	return &CommentQuery{config: c.config}
}

// Get returns a Comment entity by its id.
func (c *CommentClient) Get(ctx context.Context, id int64) (*Comment, error) {
	return c.Query().Where(comment.ID(id)).Only(ctx)
}

// GetX is like Get, but panics if an error occurs.
func (c *CommentClient) GetX(ctx context.Context, id int64) *Comment {
	obj, err := c.Get(ctx, id)
	if err != nil {
		panic(err)
	}
	return obj
}

// QueryPost queries the post edge of a Comment.
func (c *CommentClient) QueryPost(co *Comment) *ArticleQuery {
	query := &ArticleQuery{config: c.config}
	query.path = func(ctx context.Context) (fromV *sql.Selector, _ error) {
		id := co.ID
		step := sqlgraph.NewStep(
			sqlgraph.From(comment.Table, comment.FieldID, id),
			sqlgraph.To(article.Table, article.FieldID),
			sqlgraph.Edge(sqlgraph.M2O, true, comment.PostTable, comment.PostColumn),
		)
		fromV = sqlgraph.Neighbors(co.driver.Dialect(), step)
		return fromV, nil
	}
	return query
}

// Hooks returns the client hooks.
func (c *CommentClient) Hooks() []Hook {
	return c.hooks.Comment
}

// TagClient is a client for the Tag schema.
type TagClient struct {
	config
}

// NewTagClient returns a client for the Tag from the given config.
func NewTagClient(c config) *TagClient {
	return &TagClient{config: c}
}

// Use adds a list of mutation hooks to the hooks stack.
// A call to `Use(f, g, h)` equals to `tag.Hooks(f(g(h())))`.
func (c *TagClient) Use(hooks ...Hook) {
	c.hooks.Tag = append(c.hooks.Tag, hooks...)
}

// Create returns a create builder for Tag.
func (c *TagClient) Create() *TagCreate {
	mutation := newTagMutation(c.config, OpCreate)
	return &TagCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// CreateBulk returns a builder for creating a bulk of Tag entities.
func (c *TagClient) CreateBulk(builders ...*TagCreate) *TagCreateBulk {
	return &TagCreateBulk{config: c.config, builders: builders}
}

// Update returns an update builder for Tag.
func (c *TagClient) Update() *TagUpdate {
	mutation := newTagMutation(c.config, OpUpdate)
	return &TagUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// UpdateOne returns an update builder for the given entity.
func (c *TagClient) UpdateOne(t *Tag) *TagUpdateOne {
	mutation := newTagMutation(c.config, OpUpdateOne, withTag(t))
	return &TagUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// UpdateOneID returns an update builder for the given id.
func (c *TagClient) UpdateOneID(id int64) *TagUpdateOne {
	mutation := newTagMutation(c.config, OpUpdateOne, withTagID(id))
	return &TagUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// Delete returns a delete builder for Tag.
func (c *TagClient) Delete() *TagDelete {
	mutation := newTagMutation(c.config, OpDelete)
	return &TagDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
}

// DeleteOne returns a delete builder for the given entity.
func (c *TagClient) DeleteOne(t *Tag) *TagDeleteOne {
	return c.DeleteOneID(t.ID)
}

// DeleteOneID returns a delete builder for the given id.
func (c *TagClient) DeleteOneID(id int64) *TagDeleteOne {
	builder := c.Delete().Where(tag.ID(id))
	builder.mutation.id = &id
	builder.mutation.op = OpDeleteOne
	return &TagDeleteOne{builder}
}

// Query returns a query builder for Tag.
func (c *TagClient) Query() *TagQuery {
	return &TagQuery{config: c.config}
}

// Get returns a Tag entity by its id.
func (c *TagClient) Get(ctx context.Context, id int64) (*Tag, error) {
	return c.Query().Where(tag.ID(id)).Only(ctx)
}

// GetX is like Get, but panics if an error occurs.
func (c *TagClient) GetX(ctx context.Context, id int64) *Tag {
	obj, err := c.Get(ctx, id)
	if err != nil {
		panic(err)
	}
	return obj
}

// QueryPosts queries the posts edge of a Tag.
func (c *TagClient) QueryPosts(t *Tag) *ArticleQuery {
	query := &ArticleQuery{config: c.config}
	query.path = func(ctx context.Context) (fromV *sql.Selector, _ error) {
		id := t.ID
		step := sqlgraph.NewStep(
			sqlgraph.From(tag.Table, tag.FieldID, id),
			sqlgraph.To(article.Table, article.FieldID),
			sqlgraph.Edge(sqlgraph.M2M, false, tag.PostsTable, tag.PostsPrimaryKey...),
		)
		fromV = sqlgraph.Neighbors(t.driver.Dialect(), step)
		return fromV, nil
	}
	return query
}

// Hooks returns the client hooks.
func (c *TagClient) Hooks() []Hook {
	return c.hooks.Tag
}