ent

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 Go to latest Published: Apr 2, 2021 License: MIT Imports: 17 Imported by: 0

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Index

Constants

View Source 
const (
	// Operation types.
	OpCreate    = ent.OpCreate
	OpDelete    = ent.OpDelete
	OpDeleteOne = ent.OpDeleteOne
	OpUpdate    = ent.OpUpdate
	OpUpdateOne = ent.OpUpdateOne

	// Node types.
	TypeProduct = "Product"
)

Variables

This section is empty.

Functions

func IsConstraintError 

func IsConstraintError(err error) bool

IsConstraintError returns a boolean indicating whether the error is a constraint failure.

func IsNotFound 

func IsNotFound(err error) bool

IsNotFound returns a boolean indicating whether the error is a not found error.

func IsNotLoaded 

func IsNotLoaded(err error) bool

IsNotLoaded returns a boolean indicating whether the error is a not loaded error.

func IsNotSingular 

func IsNotSingular(err error) bool

IsNotSingular returns a boolean indicating whether the error is a not singular error.

func IsValidationError 

func IsValidationError(err error) bool

IsValidationError returns a boolean indicating whether the error is a validaton error.

func MaskNotFound 

func MaskNotFound(err error) error

MaskNotFound masks not found error.

func NewContext 

func NewContext(parent context.Context, c *Client) context.Context

NewContext returns a new context with the given Client attached.

func NewTxContext 

func NewTxContext(parent context.Context, tx *Tx) context.Context

NewTxContext returns a new context with the given Tx attached.

Types

type AggregateFunc 

type AggregateFunc func(*sql.Selector, func(string) bool) string

AggregateFunc applies an aggregation step on the group-by traversal/selector.

func As 

func As(fn AggregateFunc, end string) AggregateFunc

As is a pseudo aggregation function for renaming another other functions with custom names. For example: 

GroupBy(field1, field2).
Aggregate(ent.As(ent.Sum(field1), "sum_field1"), (ent.As(ent.Sum(field2), "sum_field2")).
Scan(ctx, &v)

func Count 

func Count() AggregateFunc

Count applies the "count" aggregation function on each group.

func Max 

func Max(field string) AggregateFunc

Max applies the "max" aggregation function on the given field of each group.

func Mean 

func Mean(field string) AggregateFunc

Mean applies the "mean" aggregation function on the given field of each group.

func Min 

func Min(field string) AggregateFunc

Min applies the "min" aggregation function on the given field of each group.

func Sum 

func Sum(field string) AggregateFunc

Sum applies the "sum" aggregation function on the given field of each group.

type Client 

type Client struct {

	// Schema is the client for creating, migrating and dropping schema.
	Schema *migrate.Schema
	// Product is the client for interacting with the Product builders.
	Product *ProductClient
	// contains filtered or unexported fields
}

Client is the client that holds all ent builders.

func FromContext 

func FromContext(ctx context.Context) *Client

FromContext returns a Client stored inside a context, or nil if there isn't one.

func NewClient 

func NewClient(opts ...Option) *Client

NewClient creates a new client configured with the given options.

func Open 

func Open(driverName, dataSourceName string, options ...Option) (*Client, error)

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 (*Client) BeginTx 

func (c *Client) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error)

BeginTx returns a transactional client with specified options.

func (*Client) Close 

func (c *Client) Close() error

Close closes the database connection and prevents new queries from starting.

func (*Client) Debug 

func (c *Client) Debug() *Client

Debug returns a new debug-client. It's used to get verbose logging on specific operations. 

client.Debug().
	Product.
	Query().
	Count(ctx)

func (*Client) Tx 

func (c *Client) Tx(ctx context.Context) (*Tx, error)

Tx returns a new transactional client. The provided context is used until the transaction is committed or rolled back.

func (*Client) Use 

func (c *Client) Use(hooks ...Hook)

Use adds the mutation hooks to all the entity clients. In order to add hooks to a specific client, call: `client.Node.Use(...)`.

type CommitFunc 

type CommitFunc func(context.Context, *Tx) error

The CommitFunc type is an adapter to allow the use of ordinary function as a Committer. If f is a function with the appropriate signature, CommitFunc(f) is a Committer that calls f.

func (CommitFunc) Commit 

func (f CommitFunc) Commit(ctx context.Context, tx *Tx) error

Commit calls f(ctx, m).

type CommitHook 

type CommitHook func(Committer) Committer

CommitHook defines the "commit middleware". A function that gets a Committer and returns a Committer. For example: 

hook := func(next ent.Committer) ent.Committer {
	return ent.CommitFunc(func(context.Context, tx *ent.Tx) error {
		// Do some stuff before.
		if err := next.Commit(ctx, tx); err != nil {
			return err
		}
		// Do some stuff after.
		return nil
	})
}

type Committer 

type Committer interface {
	Commit(context.Context, *Tx) error
}

Committer is the interface that wraps the Committer method.

type ConstraintError 

type ConstraintError struct {
	// contains filtered or unexported fields
}

ConstraintError returns when trying to create/update one or more entities and one or more of their constraints failed. For example, violation of edge or field uniqueness.

func (ConstraintError) Error 

func (e ConstraintError) Error() string

Error implements the error interface.

func (*ConstraintError) Unwrap 

func (e *ConstraintError) Unwrap() error

Unwrap implements the errors.Wrapper interface.

type Hook 

type Hook = ent.Hook

ent aliases to avoid import conflicts in user's code.

type MutateFunc 

type MutateFunc = ent.MutateFunc

ent aliases to avoid import conflicts in user's code.

type Mutation 

type Mutation = ent.Mutation

ent aliases to avoid import conflicts in user's code.

type Mutator 

type Mutator = ent.Mutator

ent aliases to avoid import conflicts in user's code.

type NotFoundError 

type NotFoundError struct {
	// contains filtered or unexported fields
}

NotFoundError returns when trying to fetch a specific entity and it was not found in the database.

func (*NotFoundError) Error 

func (e *NotFoundError) Error() string

Error implements the error interface.

type NotLoadedError 

type NotLoadedError struct {
	// contains filtered or unexported fields
}

NotLoadedError returns when trying to get a node that was not loaded by the query.

func (*NotLoadedError) Error 

func (e *NotLoadedError) Error() string

Error implements the error interface.

type NotSingularError 

type NotSingularError struct {
	// contains filtered or unexported fields
}

NotSingularError returns when trying to fetch a singular entity and more then one was found in the database.

func (*NotSingularError) Error 

func (e *NotSingularError) Error() string

Error implements the error interface.

type Op 

type Op = ent.Op

ent aliases to avoid import conflicts in user's code.

type Option 

type Option func(*config)

Option function to configure the client.

func Debug 

func Debug() Option

Debug enables debug logging on the ent.Driver.

func Driver 

func Driver(driver dialect.Driver) Option

Driver configures the client driver.

func Log 

func Log(fn func(...interface{})) Option

Log sets the logging function for debug mode.

type OrderFunc 

type OrderFunc func(*sql.Selector, func(string) bool)

OrderFunc applies an ordering on the sql selector.

func Asc 

func Asc(fields ...string) OrderFunc

Asc applies the given fields in ASC order.

func Desc 

func Desc(fields ...string) OrderFunc

Desc applies the given fields in DESC order.

type Policy 

type Policy = ent.Policy

ent aliases to avoid import conflicts in user's code.

type Product 

type Product struct {

	// ID of the ent.
	ID string `json:"id,omitempty"`
	// Name holds the value of the "name" field.
	Name string `json:"name,omitempty"`
	// ImageURL holds the value of the "image_url" field.
	ImageURL string `json:"image_url,omitempty"`
	// Price holds the value of the "price" field.
	Price int `json:"price,omitempty"`
	// Qty holds the value of the "qty" field.
	Qty int `json:"qty,omitempty"`
	// CreatedAt holds the value of the "created_at" field.
	CreatedAt time.Time `json:"created_at,omitempty"`
	// UpdatedAt holds the value of the "updated_at" field.
	UpdatedAt time.Time `json:"updated_at,omitempty"`
	// contains filtered or unexported fields
}

Product is the model entity for the Product schema.

func (*Product) String 

func (pr *Product) String() string

String implements the fmt.Stringer.

func (*Product) Unwrap 

func (pr *Product) Unwrap() *Product

Unwrap unwraps the Product entity that was returned from a transaction after it was closed, so that all future queries will be executed through the driver which created the transaction.

func (*Product) Update 

func (pr *Product) Update() *ProductUpdateOne

Update returns a builder for updating this Product. Note that you need to call Product.Unwrap() before calling this method if this Product was returned from a transaction, and the transaction was committed or rolled back.

type ProductClient 

type ProductClient struct {
	// contains filtered or unexported fields
}

ProductClient is a client for the Product schema.

func NewProductClient 

func NewProductClient(c config) *ProductClient

NewProductClient returns a client for the Product from the given config.

func (*ProductClient) Create 

func (c *ProductClient) Create() *ProductCreate

Create returns a create builder for Product.

func (*ProductClient) CreateBulk 

func (c *ProductClient) CreateBulk(builders ...*ProductCreate) *ProductCreateBulk

CreateBulk returns a builder for creating a bulk of Product entities.

func (*ProductClient) Delete 

func (c *ProductClient) Delete() *ProductDelete

Delete returns a delete builder for Product.

func (*ProductClient) DeleteOne 

func (c *ProductClient) DeleteOne(pr *Product) *ProductDeleteOne

DeleteOne returns a delete builder for the given entity.

func (*ProductClient) DeleteOneID 

func (c *ProductClient) DeleteOneID(id string) *ProductDeleteOne

DeleteOneID returns a delete builder for the given id.

func (*ProductClient) Get 

func (c *ProductClient) Get(ctx context.Context, id string) (*Product, error)

Get returns a Product entity by its id.

func (*ProductClient) GetX 

func (c *ProductClient) GetX(ctx context.Context, id string) *Product

GetX is like Get, but panics if an error occurs.

func (*ProductClient) Hooks 

func (c *ProductClient) Hooks() []Hook

Hooks returns the client hooks.

func (*ProductClient) Query 

func (c *ProductClient) Query() *ProductQuery

Query returns a query builder for Product.

func (*ProductClient) Update 

func (c *ProductClient) Update() *ProductUpdate

Update returns an update builder for Product.

func (*ProductClient) UpdateOne 

func (c *ProductClient) UpdateOne(pr *Product) *ProductUpdateOne

UpdateOne returns an update builder for the given entity.

func (*ProductClient) UpdateOneID 

func (c *ProductClient) UpdateOneID(id string) *ProductUpdateOne

UpdateOneID returns an update builder for the given id.

func (*ProductClient) Use 

func (c *ProductClient) Use(hooks ...Hook)

Use adds a list of mutation hooks to the hooks stack. A call to `Use(f, g, h)` equals to `product.Hooks(f(g(h())))`.

type ProductCreate 

type ProductCreate struct {
	// contains filtered or unexported fields
}

ProductCreate is the builder for creating a Product entity.

func (*ProductCreate) Mutation 

func (pc *ProductCreate) Mutation() *ProductMutation

Mutation returns the ProductMutation object of the builder.

func (*ProductCreate) Save 

func (pc *ProductCreate) Save(ctx context.Context) (*Product, error)

Save creates the Product in the database.

func (*ProductCreate) SaveX 

func (pc *ProductCreate) SaveX(ctx context.Context) *Product

SaveX calls Save and panics if Save returns an error.

func (*ProductCreate) SetCreatedAt 

func (pc *ProductCreate) SetCreatedAt(t time.Time) *ProductCreate

SetCreatedAt sets the "created_at" field.

func (*ProductCreate) SetID 

func (pc *ProductCreate) SetID(s string) *ProductCreate

SetID sets the "id" field.

func (*ProductCreate) SetImageURL 

func (pc *ProductCreate) SetImageURL(s string) *ProductCreate

SetImageURL sets the "image_url" field.

func (*ProductCreate) SetName 

func (pc *ProductCreate) SetName(s string) *ProductCreate

SetName sets the "name" field.

func (*ProductCreate) SetNillableCreatedAt 

func (pc *ProductCreate) SetNillableCreatedAt(t *time.Time) *ProductCreate

SetNillableCreatedAt sets the "created_at" field if the given value is not nil.

func (*ProductCreate) SetNillableUpdatedAt 

func (pc *ProductCreate) SetNillableUpdatedAt(t *time.Time) *ProductCreate

SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.

func (*ProductCreate) SetPrice 

func (pc *ProductCreate) SetPrice(i int) *ProductCreate

SetPrice sets the "price" field.

func (*ProductCreate) SetQty 

func (pc *ProductCreate) SetQty(i int) *ProductCreate

SetQty sets the "qty" field.

func (*ProductCreate) SetUpdatedAt 

func (pc *ProductCreate) SetUpdatedAt(t time.Time) *ProductCreate

SetUpdatedAt sets the "updated_at" field.

type ProductCreateBulk 

type ProductCreateBulk struct {
	// contains filtered or unexported fields
}

ProductCreateBulk is the builder for creating many Product entities in bulk.

func (*ProductCreateBulk) Save 

func (pcb *ProductCreateBulk) Save(ctx context.Context) ([]*Product, error)

Save creates the Product entities in the database.

func (*ProductCreateBulk) SaveX 

func (pcb *ProductCreateBulk) SaveX(ctx context.Context) []*Product

SaveX is like Save, but panics if an error occurs.

type ProductDelete 

type ProductDelete struct {
	// contains filtered or unexported fields
}

ProductDelete is the builder for deleting a Product entity.

func (*ProductDelete) Exec 

func (pd *ProductDelete) Exec(ctx context.Context) (int, error)

Exec executes the deletion query and returns how many vertices were deleted.

func (*ProductDelete) ExecX 

func (pd *ProductDelete) ExecX(ctx context.Context) int

ExecX is like Exec, but panics if an error occurs.

func (*ProductDelete) Where 

func (pd *ProductDelete) Where(ps ...predicate.Product) *ProductDelete

Where adds a new predicate to the ProductDelete builder.

type ProductDeleteOne 

type ProductDeleteOne struct {
	// contains filtered or unexported fields
}

ProductDeleteOne is the builder for deleting a single Product entity.

func (*ProductDeleteOne) Exec 

func (pdo *ProductDeleteOne) Exec(ctx context.Context) error

Exec executes the deletion query.

func (*ProductDeleteOne) ExecX 

func (pdo *ProductDeleteOne) ExecX(ctx context.Context)

ExecX is like Exec, but panics if an error occurs.

type ProductGroupBy 

type ProductGroupBy struct {
	// contains filtered or unexported fields
}

ProductGroupBy is the group-by builder for Product entities.

func (*ProductGroupBy) Aggregate 

func (pgb *ProductGroupBy) Aggregate(fns ...AggregateFunc) *ProductGroupBy

Aggregate adds the given aggregation functions to the group-by query.

func (*ProductGroupBy) Bool 

func (pgb *ProductGroupBy) Bool(ctx context.Context) (_ bool, err error)

Bool returns a single bool from a group-by query. It is only allowed when executing a group-by query with one field.

func (*ProductGroupBy) BoolX 

func (pgb *ProductGroupBy) BoolX(ctx context.Context) bool

BoolX is like Bool, but panics if an error occurs.

func (*ProductGroupBy) Bools 

func (pgb *ProductGroupBy) Bools(ctx context.Context) ([]bool, error)

Bools returns list of bools from group-by. It is only allowed when executing a group-by query with one field.

func (*ProductGroupBy) BoolsX 

func (pgb *ProductGroupBy) BoolsX(ctx context.Context) []bool

BoolsX is like Bools, but panics if an error occurs.

func (*ProductGroupBy) Float64 

func (pgb *ProductGroupBy) Float64(ctx context.Context) (_ float64, err error)

Float64 returns a single float64 from a group-by query. It is only allowed when executing a group-by query with one field.

func (*ProductGroupBy) Float64X 

func (pgb *ProductGroupBy) Float64X(ctx context.Context) float64

Float64X is like Float64, but panics if an error occurs.

func (*ProductGroupBy) Float64s 

func (pgb *ProductGroupBy) Float64s(ctx context.Context) ([]float64, error)

Float64s returns list of float64s from group-by. It is only allowed when executing a group-by query with one field.

func (*ProductGroupBy) Float64sX 

func (pgb *ProductGroupBy) Float64sX(ctx context.Context) []float64

Float64sX is like Float64s, but panics if an error occurs.

func (*ProductGroupBy) Int 

func (pgb *ProductGroupBy) Int(ctx context.Context) (_ int, err error)

Int returns a single int from a group-by query. It is only allowed when executing a group-by query with one field.

func (*ProductGroupBy) IntX 

func (pgb *ProductGroupBy) IntX(ctx context.Context) int

IntX is like Int, but panics if an error occurs.

func (*ProductGroupBy) Ints 

func (pgb *ProductGroupBy) Ints(ctx context.Context) ([]int, error)

Ints returns list of ints from group-by. It is only allowed when executing a group-by query with one field.

func (*ProductGroupBy) IntsX 

func (pgb *ProductGroupBy) IntsX(ctx context.Context) []int

IntsX is like Ints, but panics if an error occurs.

func (*ProductGroupBy) Scan 

func (pgb *ProductGroupBy) Scan(ctx context.Context, v interface{}) error

Scan applies the group-by query and scans the result into the given value.

func (*ProductGroupBy) ScanX 

func (pgb *ProductGroupBy) ScanX(ctx context.Context, v interface{})

ScanX is like Scan, but panics if an error occurs.

func (*ProductGroupBy) String 

func (pgb *ProductGroupBy) String(ctx context.Context) (_ string, err error)

String returns a single string from a group-by query. It is only allowed when executing a group-by query with one field.

func (*ProductGroupBy) StringX 

func (pgb *ProductGroupBy) StringX(ctx context.Context) string

StringX is like String, but panics if an error occurs.

func (*ProductGroupBy) Strings 

func (pgb *ProductGroupBy) Strings(ctx context.Context) ([]string, error)

Strings returns list of strings from group-by. It is only allowed when executing a group-by query with one field.

func (*ProductGroupBy) StringsX 

func (pgb *ProductGroupBy) StringsX(ctx context.Context) []string

StringsX is like Strings, but panics if an error occurs.

type ProductMutation 

type ProductMutation struct {
	// contains filtered or unexported fields
}

ProductMutation represents an operation that mutates the Product nodes in the graph.

func (*ProductMutation) AddField 

func (m *ProductMutation) AddField(name string, value ent.Value) error

AddField adds the value to the field with the given name. It returns an error if the field is not defined in the schema, or if the type mismatched the field type.

func (*ProductMutation) AddPrice 

func (m *ProductMutation) AddPrice(i int)

AddPrice adds i to the "price" field.

func (*ProductMutation) AddQty 

func (m *ProductMutation) AddQty(i int)

AddQty adds i to the "qty" field.

func (*ProductMutation) AddedEdges 

func (m *ProductMutation) AddedEdges() []string

AddedEdges returns all edge names that were set/added in this mutation.

func (*ProductMutation) AddedField 

func (m *ProductMutation) AddedField(name string) (ent.Value, bool)

AddedField returns the numeric value that was incremented/decremented on a field with the given name. The second boolean return value indicates that this field was not set, or was not defined in the schema.

func (*ProductMutation) AddedFields 

func (m *ProductMutation) AddedFields() []string

AddedFields returns all numeric fields that were incremented/decremented during this mutation.

func (*ProductMutation) AddedIDs 

func (m *ProductMutation) AddedIDs(name string) []ent.Value

AddedIDs returns all IDs (to other nodes) that were added for the given edge name in this mutation.

func (*ProductMutation) AddedPrice 

func (m *ProductMutation) AddedPrice() (r int, exists bool)

AddedPrice returns the value that was added to the "price" field in this mutation.

func (*ProductMutation) AddedQty 

func (m *ProductMutation) AddedQty() (r int, exists bool)

AddedQty returns the value that was added to the "qty" field in this mutation.

func (*ProductMutation) ClearEdge 

func (m *ProductMutation) ClearEdge(name string) error

ClearEdge clears the value of the edge with the given name. It returns an error if that edge is not defined in the schema.

func (*ProductMutation) ClearField 

func (m *ProductMutation) ClearField(name string) error

ClearField clears the value of the field with the given name. It returns an error if the field is not defined in the schema.

func (*ProductMutation) ClearedEdges 

func (m *ProductMutation) ClearedEdges() []string

ClearedEdges returns all edge names that were cleared in this mutation.

func (*ProductMutation) ClearedFields 

func (m *ProductMutation) ClearedFields() []string

ClearedFields returns all nullable fields that were cleared during this mutation.

func (ProductMutation) Client 

func (m ProductMutation) Client() *Client

Client returns a new `ent.Client` from the mutation. If the mutation was executed in a transaction (ent.Tx), a transactional client is returned.

func (*ProductMutation) CreatedAt 

func (m *ProductMutation) CreatedAt() (r time.Time, exists bool)

CreatedAt returns the value of the "created_at" field in the mutation.

func (*ProductMutation) EdgeCleared 

func (m *ProductMutation) EdgeCleared(name string) bool

EdgeCleared returns a boolean which indicates if the edge with the given name was cleared in this mutation.

func (*ProductMutation) Field 

func (m *ProductMutation) Field(name string) (ent.Value, bool)

Field returns the value of a field with the given name. The second boolean return value indicates that this field was not set, or was not defined in the schema.

func (*ProductMutation) FieldCleared 

func (m *ProductMutation) FieldCleared(name string) bool

FieldCleared returns a boolean indicating if a field with the given name was cleared in this mutation.

func (*ProductMutation) Fields 

func (m *ProductMutation) Fields() []string

Fields returns all fields that were changed during this mutation. Note that in order to get all numeric fields that were incremented/decremented, call AddedFields().

func (*ProductMutation) ID 

func (m *ProductMutation) ID() (id string, exists bool)

ID returns the ID value in the mutation. Note that the ID is only available if it was provided to the builder.

func (*ProductMutation) ImageURL 

func (m *ProductMutation) ImageURL() (r string, exists bool)

ImageURL returns the value of the "image_url" field in the mutation.

func (*ProductMutation) Name 

func (m *ProductMutation) Name() (r string, exists bool)

Name returns the value of the "name" field in the mutation.

func (*ProductMutation) OldCreatedAt 

func (m *ProductMutation) OldCreatedAt(ctx context.Context) (v time.Time, err error)

OldCreatedAt returns the old "created_at" field's value of the Product entity. If the Product object wasn't provided to the builder, the object is fetched from the database. An error is returned if the mutation operation is not UpdateOne, or the database query fails.

func (*ProductMutation) OldField 

func (m *ProductMutation) OldField(ctx context.Context, name string) (ent.Value, error)

OldField returns the old value of the field from the database. An error is returned if the mutation operation is not UpdateOne, or the query to the database failed.

func (*ProductMutation) OldImageURL 

func (m *ProductMutation) OldImageURL(ctx context.Context) (v string, err error)

OldImageURL returns the old "image_url" field's value of the Product entity. If the Product object wasn't provided to the builder, the object is fetched from the database. An error is returned if the mutation operation is not UpdateOne, or the database query fails.

func (*ProductMutation) OldName 

func (m *ProductMutation) OldName(ctx context.Context) (v string, err error)

OldName returns the old "name" field's value of the Product entity. If the Product object wasn't provided to the builder, the object is fetched from the database. An error is returned if the mutation operation is not UpdateOne, or the database query fails.

func (*ProductMutation) OldPrice 

func (m *ProductMutation) OldPrice(ctx context.Context) (v int, err error)

OldPrice returns the old "price" field's value of the Product entity. If the Product object wasn't provided to the builder, the object is fetched from the database. An error is returned if the mutation operation is not UpdateOne, or the database query fails.

func (*ProductMutation) OldQty 

func (m *ProductMutation) OldQty(ctx context.Context) (v int, err error)

OldQty returns the old "qty" field's value of the Product entity. If the Product object wasn't provided to the builder, the object is fetched from the database. An error is returned if the mutation operation is not UpdateOne, or the database query fails.

func (*ProductMutation) OldUpdatedAt 

func (m *ProductMutation) OldUpdatedAt(ctx context.Context) (v time.Time, err error)

OldUpdatedAt returns the old "updated_at" field's value of the Product entity. If the Product object wasn't provided to the builder, the object is fetched from the database. An error is returned if the mutation operation is not UpdateOne, or the database query fails.

func (*ProductMutation) Op 

func (m *ProductMutation) Op() Op

Op returns the operation name.

func (*ProductMutation) Price 

func (m *ProductMutation) Price() (r int, exists bool)

Price returns the value of the "price" field in the mutation.

func (*ProductMutation) Qty 

func (m *ProductMutation) Qty() (r int, exists bool)

Qty returns the value of the "qty" field in the mutation.

func (*ProductMutation) RemovedEdges 

func (m *ProductMutation) RemovedEdges() []string

RemovedEdges returns all edge names that were removed in this mutation.

func (*ProductMutation) RemovedIDs 

func (m *ProductMutation) RemovedIDs(name string) []ent.Value

RemovedIDs returns all IDs (to other nodes) that were removed for the edge with the given name in this mutation.

func (*ProductMutation) ResetCreatedAt 

func (m *ProductMutation) ResetCreatedAt()

ResetCreatedAt resets all changes to the "created_at" field.

func (*ProductMutation) ResetEdge 

func (m *ProductMutation) ResetEdge(name string) error

ResetEdge resets all changes to the edge with the given name in this mutation. It returns an error if the edge is not defined in the schema.

func (*ProductMutation) ResetField 

func (m *ProductMutation) ResetField(name string) error

ResetField resets all changes in the mutation for the field with the given name. It returns an error if the field is not defined in the schema.

func (*ProductMutation) ResetImageURL 

func (m *ProductMutation) ResetImageURL()

ResetImageURL resets all changes to the "image_url" field.

func (*ProductMutation) ResetName 

func (m *ProductMutation) ResetName()

ResetName resets all changes to the "name" field.

func (*ProductMutation) ResetPrice 

func (m *ProductMutation) ResetPrice()

ResetPrice resets all changes to the "price" field.

func (*ProductMutation) ResetQty 

func (m *ProductMutation) ResetQty()

ResetQty resets all changes to the "qty" field.

func (*ProductMutation) ResetUpdatedAt 

func (m *ProductMutation) ResetUpdatedAt()

ResetUpdatedAt resets all changes to the "updated_at" field.

func (*ProductMutation) SetCreatedAt 

func (m *ProductMutation) SetCreatedAt(t time.Time)

SetCreatedAt sets the "created_at" field.

func (*ProductMutation) SetField 

func (m *ProductMutation) SetField(name string, value ent.Value) error

SetField sets the value of a field with the given name. It returns an error if the field is not defined in the schema, or if the type mismatched the field type.

func (*ProductMutation) SetID 

func (m *ProductMutation) SetID(id string)

SetID sets the value of the id field. Note that this operation is only accepted on creation of Product entities.

func (*ProductMutation) SetImageURL 

func (m *ProductMutation) SetImageURL(s string)

SetImageURL sets the "image_url" field.

func (*ProductMutation) SetName 

func (m *ProductMutation) SetName(s string)

SetName sets the "name" field.

func (*ProductMutation) SetPrice 

func (m *ProductMutation) SetPrice(i int)

SetPrice sets the "price" field.

func (*ProductMutation) SetQty 

func (m *ProductMutation) SetQty(i int)

SetQty sets the "qty" field.

func (*ProductMutation) SetUpdatedAt 

func (m *ProductMutation) SetUpdatedAt(t time.Time)

SetUpdatedAt sets the "updated_at" field.

func (ProductMutation) Tx 

func (m ProductMutation) Tx() (*Tx, error)

Tx returns an `ent.Tx` for mutations that were executed in transactions; it returns an error otherwise.

func (*ProductMutation) Type 

func (m *ProductMutation) Type() string

Type returns the node type of this mutation (Product).

func (*ProductMutation) UpdatedAt 

func (m *ProductMutation) UpdatedAt() (r time.Time, exists bool)

UpdatedAt returns the value of the "updated_at" field in the mutation.

type ProductQuery 

type ProductQuery struct {
	// contains filtered or unexported fields
}

ProductQuery is the builder for querying Product entities.

func (*ProductQuery) All 

func (pq *ProductQuery) All(ctx context.Context) ([]*Product, error)

All executes the query and returns a list of Products.

func (*ProductQuery) AllX 

func (pq *ProductQuery) AllX(ctx context.Context) []*Product

AllX is like All, but panics if an error occurs.

func (*ProductQuery) Clone 

func (pq *ProductQuery) Clone() *ProductQuery

Clone returns a duplicate of the ProductQuery builder, including all associated steps. It can be used to prepare common query builders and use them differently after the clone is made.

func (*ProductQuery) Count 

func (pq *ProductQuery) Count(ctx context.Context) (int, error)

Count returns the count of the given query.

func (*ProductQuery) CountX 

func (pq *ProductQuery) CountX(ctx context.Context) int

CountX is like Count, but panics if an error occurs.

func (*ProductQuery) Exist 

func (pq *ProductQuery) Exist(ctx context.Context) (bool, error)

Exist returns true if the query has elements in the graph.

func (*ProductQuery) ExistX 

func (pq *ProductQuery) ExistX(ctx context.Context) bool

ExistX is like Exist, but panics if an error occurs.

func (*ProductQuery) First 

func (pq *ProductQuery) First(ctx context.Context) (*Product, error)

First returns the first Product entity from the query. Returns a *NotFoundError when no Product was found.

func (*ProductQuery) FirstID 

func (pq *ProductQuery) FirstID(ctx context.Context) (id string, err error)

FirstID returns the first Product ID from the query. Returns a *NotFoundError when no Product ID was found.

func (*ProductQuery) FirstIDX 

func (pq *ProductQuery) FirstIDX(ctx context.Context) string

FirstIDX is like FirstID, but panics if an error occurs.

func (*ProductQuery) FirstX 

func (pq *ProductQuery) FirstX(ctx context.Context) *Product

FirstX is like First, but panics if an error occurs.

func (*ProductQuery) GroupBy 

func (pq *ProductQuery) GroupBy(field string, fields ...string) *ProductGroupBy

GroupBy is used to group vertices by one or more fields/columns. It is often used with aggregate functions, like: count, max, mean, min, sum.

Example: 

var v []struct {
	Name string `json:"name,omitempty"`
	Count int `json:"count,omitempty"`
}

client.Product.Query().
	GroupBy(product.FieldName).
	Aggregate(ent.Count()).
	Scan(ctx, &v)

func (*ProductQuery) IDs 

func (pq *ProductQuery) IDs(ctx context.Context) ([]string, error)

IDs executes the query and returns a list of Product IDs.

func (*ProductQuery) IDsX 

func (pq *ProductQuery) IDsX(ctx context.Context) []string

IDsX is like IDs, but panics if an error occurs.

func (*ProductQuery) Limit 

func (pq *ProductQuery) Limit(limit int) *ProductQuery

Limit adds a limit step to the query.

func (*ProductQuery) Offset 

func (pq *ProductQuery) Offset(offset int) *ProductQuery

Offset adds an offset step to the query.

func (*ProductQuery) Only 

func (pq *ProductQuery) Only(ctx context.Context) (*Product, error)

Only returns a single Product entity found by the query, ensuring it only returns one. Returns a *NotSingularError when exactly one Product entity is not found. Returns a *NotFoundError when no Product entities are found.

func (*ProductQuery) OnlyID 

func (pq *ProductQuery) OnlyID(ctx context.Context) (id string, err error)

OnlyID is like Only, but returns the only Product ID in the query. Returns a *NotSingularError when exactly one Product ID is not found. Returns a *NotFoundError when no entities are found.

func (*ProductQuery) OnlyIDX 

func (pq *ProductQuery) OnlyIDX(ctx context.Context) string

OnlyIDX is like OnlyID, but panics if an error occurs.

func (*ProductQuery) OnlyX 

func (pq *ProductQuery) OnlyX(ctx context.Context) *Product

OnlyX is like Only, but panics if an error occurs.

func (*ProductQuery) Order 

func (pq *ProductQuery) Order(o ...OrderFunc) *ProductQuery

Order adds an order step to the query.

func (*ProductQuery) Select 

func (pq *ProductQuery) Select(field string, fields ...string) *ProductSelect

Select allows the selection one or more fields/columns for the given query, instead of selecting all fields in the entity.

Example: 

var v []struct {
	Name string `json:"name,omitempty"`
}

client.Product.Query().
	Select(product.FieldName).
	Scan(ctx, &v)

func (*ProductQuery) Where 

func (pq *ProductQuery) Where(ps ...predicate.Product) *ProductQuery

Where adds a new predicate for the ProductQuery builder.

type ProductSelect 

type ProductSelect struct {
	*ProductQuery
	// contains filtered or unexported fields
}

ProductSelect is the builder for selecting fields of Product entities.

func (*ProductSelect) Bool 

func (ps *ProductSelect) Bool(ctx context.Context) (_ bool, err error)

Bool returns a single bool from a selector. It is only allowed when selecting one field.

func (*ProductSelect) BoolX 

func (ps *ProductSelect) BoolX(ctx context.Context) bool

BoolX is like Bool, but panics if an error occurs.

func (*ProductSelect) Bools 

func (ps *ProductSelect) Bools(ctx context.Context) ([]bool, error)

Bools returns list of bools from a selector. It is only allowed when selecting one field.

func (*ProductSelect) BoolsX 

func (ps *ProductSelect) BoolsX(ctx context.Context) []bool

BoolsX is like Bools, but panics if an error occurs.

func (*ProductSelect) Float64 

func (ps *ProductSelect) Float64(ctx context.Context) (_ float64, err error)

Float64 returns a single float64 from a selector. It is only allowed when selecting one field.

func (*ProductSelect) Float64X 

func (ps *ProductSelect) Float64X(ctx context.Context) float64

Float64X is like Float64, but panics if an error occurs.

func (*ProductSelect) Float64s 

func (ps *ProductSelect) Float64s(ctx context.Context) ([]float64, error)

Float64s returns list of float64s from a selector. It is only allowed when selecting one field.

func (*ProductSelect) Float64sX 

func (ps *ProductSelect) Float64sX(ctx context.Context) []float64

Float64sX is like Float64s, but panics if an error occurs.

func (*ProductSelect) Int 

func (ps *ProductSelect) Int(ctx context.Context) (_ int, err error)

Int returns a single int from a selector. It is only allowed when selecting one field.

func (*ProductSelect) IntX 

func (ps *ProductSelect) IntX(ctx context.Context) int

IntX is like Int, but panics if an error occurs.

func (*ProductSelect) Ints 

func (ps *ProductSelect) Ints(ctx context.Context) ([]int, error)

Ints returns list of ints from a selector. It is only allowed when selecting one field.

func (*ProductSelect) IntsX 

func (ps *ProductSelect) IntsX(ctx context.Context) []int

IntsX is like Ints, but panics if an error occurs.

func (*ProductSelect) Scan 

func (ps *ProductSelect) Scan(ctx context.Context, v interface{}) error

Scan applies the selector query and scans the result into the given value.

func (*ProductSelect) ScanX 

func (ps *ProductSelect) ScanX(ctx context.Context, v interface{})

ScanX is like Scan, but panics if an error occurs.

func (*ProductSelect) String 

func (ps *ProductSelect) String(ctx context.Context) (_ string, err error)

String returns a single string from a selector. It is only allowed when selecting one field.

func (*ProductSelect) StringX 

func (ps *ProductSelect) StringX(ctx context.Context) string

StringX is like String, but panics if an error occurs.

func (*ProductSelect) Strings 

func (ps *ProductSelect) Strings(ctx context.Context) ([]string, error)

Strings returns list of strings from a selector. It is only allowed when selecting one field.

func (*ProductSelect) StringsX 

func (ps *ProductSelect) StringsX(ctx context.Context) []string

StringsX is like Strings, but panics if an error occurs.

type ProductUpdate 

type ProductUpdate struct {
	// contains filtered or unexported fields
}

ProductUpdate is the builder for updating Product entities.

func (*ProductUpdate) AddPrice 

func (pu *ProductUpdate) AddPrice(i int) *ProductUpdate

AddPrice adds i to the "price" field.

func (*ProductUpdate) AddQty 

func (pu *ProductUpdate) AddQty(i int) *ProductUpdate

AddQty adds i to the "qty" field.

func (*ProductUpdate) Exec 

func (pu *ProductUpdate) Exec(ctx context.Context) error

Exec executes the query.

func (*ProductUpdate) ExecX 

func (pu *ProductUpdate) ExecX(ctx context.Context)

ExecX is like Exec, but panics if an error occurs.

func (*ProductUpdate) Mutation 

func (pu *ProductUpdate) Mutation() *ProductMutation

Mutation returns the ProductMutation object of the builder.

func (*ProductUpdate) Save 

func (pu *ProductUpdate) Save(ctx context.Context) (int, error)

Save executes the query and returns the number of nodes affected by the update operation.

func (*ProductUpdate) SaveX 

func (pu *ProductUpdate) SaveX(ctx context.Context) int

SaveX is like Save, but panics if an error occurs.

func (*ProductUpdate) SetCreatedAt 

func (pu *ProductUpdate) SetCreatedAt(t time.Time) *ProductUpdate

SetCreatedAt sets the "created_at" field.

func (*ProductUpdate) SetImageURL 

func (pu *ProductUpdate) SetImageURL(s string) *ProductUpdate

SetImageURL sets the "image_url" field.

func (*ProductUpdate) SetName 

func (pu *ProductUpdate) SetName(s string) *ProductUpdate

SetName sets the "name" field.

func (*ProductUpdate) SetNillableCreatedAt 

func (pu *ProductUpdate) SetNillableCreatedAt(t *time.Time) *ProductUpdate

SetNillableCreatedAt sets the "created_at" field if the given value is not nil.

func (*ProductUpdate) SetPrice 

func (pu *ProductUpdate) SetPrice(i int) *ProductUpdate

SetPrice sets the "price" field.

func (*ProductUpdate) SetQty 

func (pu *ProductUpdate) SetQty(i int) *ProductUpdate

SetQty sets the "qty" field.

func (*ProductUpdate) SetUpdatedAt 

func (pu *ProductUpdate) SetUpdatedAt(t time.Time) *ProductUpdate

SetUpdatedAt sets the "updated_at" field.

func (*ProductUpdate) Where 

func (pu *ProductUpdate) Where(ps ...predicate.Product) *ProductUpdate

Where adds a new predicate for the ProductUpdate builder.

type ProductUpdateOne 

type ProductUpdateOne struct {
	// contains filtered or unexported fields
}

ProductUpdateOne is the builder for updating a single Product entity.

func (*ProductUpdateOne) AddPrice 

func (puo *ProductUpdateOne) AddPrice(i int) *ProductUpdateOne

AddPrice adds i to the "price" field.

func (*ProductUpdateOne) AddQty 

func (puo *ProductUpdateOne) AddQty(i int) *ProductUpdateOne

AddQty adds i to the "qty" field.

func (*ProductUpdateOne) Exec 

func (puo *ProductUpdateOne) Exec(ctx context.Context) error

Exec executes the query on the entity.

func (*ProductUpdateOne) ExecX 

func (puo *ProductUpdateOne) ExecX(ctx context.Context)

ExecX is like Exec, but panics if an error occurs.

func (*ProductUpdateOne) Mutation 

func (puo *ProductUpdateOne) Mutation() *ProductMutation

Mutation returns the ProductMutation object of the builder.

func (*ProductUpdateOne) Save 

func (puo *ProductUpdateOne) Save(ctx context.Context) (*Product, error)

Save executes the query and returns the updated Product entity.

func (*ProductUpdateOne) SaveX 

func (puo *ProductUpdateOne) SaveX(ctx context.Context) *Product

SaveX is like Save, but panics if an error occurs.

func (*ProductUpdateOne) SetCreatedAt 

func (puo *ProductUpdateOne) SetCreatedAt(t time.Time) *ProductUpdateOne

SetCreatedAt sets the "created_at" field.

func (*ProductUpdateOne) SetImageURL 

func (puo *ProductUpdateOne) SetImageURL(s string) *ProductUpdateOne

SetImageURL sets the "image_url" field.

func (*ProductUpdateOne) SetName 

func (puo *ProductUpdateOne) SetName(s string) *ProductUpdateOne

SetName sets the "name" field.

func (*ProductUpdateOne) SetNillableCreatedAt 

func (puo *ProductUpdateOne) SetNillableCreatedAt(t *time.Time) *ProductUpdateOne

SetNillableCreatedAt sets the "created_at" field if the given value is not nil.

func (*ProductUpdateOne) SetPrice 

func (puo *ProductUpdateOne) SetPrice(i int) *ProductUpdateOne

SetPrice sets the "price" field.

func (*ProductUpdateOne) SetQty 

func (puo *ProductUpdateOne) SetQty(i int) *ProductUpdateOne

SetQty sets the "qty" field.

func (*ProductUpdateOne) SetUpdatedAt 

func (puo *ProductUpdateOne) SetUpdatedAt(t time.Time) *ProductUpdateOne

SetUpdatedAt sets the "updated_at" field.

type Products 

type Products []*Product

Products is a parsable slice of Product.

type Query 

type Query = ent.Query

ent aliases to avoid import conflicts in user's code.

type RollbackFunc 

type RollbackFunc func(context.Context, *Tx) error

The RollbackFunc type is an adapter to allow the use of ordinary function as a Rollbacker. If f is a function with the appropriate signature, RollbackFunc(f) is a Rollbacker that calls f.

func (RollbackFunc) Rollback 

func (f RollbackFunc) Rollback(ctx context.Context, tx *Tx) error

Rollback calls f(ctx, m).

type RollbackHook 

type RollbackHook func(Rollbacker) Rollbacker

RollbackHook defines the "rollback middleware". A function that gets a Rollbacker and returns a Rollbacker. For example: 

hook := func(next ent.Rollbacker) ent.Rollbacker {
	return ent.RollbackFunc(func(context.Context, tx *ent.Tx) error {
		// Do some stuff before.
		if err := next.Rollback(ctx, tx); err != nil {
			return err
		}
		// Do some stuff after.
		return nil
	})
}

type Rollbacker 

type Rollbacker interface {
	Rollback(context.Context, *Tx) error
}

Rollbacker is the interface that wraps the Rollbacker method.

type Tx 

type Tx struct {

	// Product is the client for interacting with the Product builders.
	Product *ProductClient
	// contains filtered or unexported fields
}

Tx is a transactional client that is created by calling Client.Tx().

func TxFromContext 

func TxFromContext(ctx context.Context) *Tx

TxFromContext returns a Tx stored inside a context, or nil if there isn't one.

func (*Tx) Client 

func (tx *Tx) Client() *Client

Client returns a Client that binds to current transaction.

func (*Tx) Commit 

func (tx *Tx) Commit() error

Commit commits the transaction.

func (*Tx) OnCommit 

func (tx *Tx) OnCommit(f CommitHook)

OnCommit adds a hook to call on commit.

func (*Tx) OnRollback 

func (tx *Tx) OnRollback(f RollbackHook)

OnRollback adds a hook to call on rollback.

func (*Tx) Rollback 

func (tx *Tx) Rollback() error

Rollback rollbacks the transaction.

type ValidationError 

type ValidationError struct {
	Name string // Field or edge name.
	// contains filtered or unexported fields
}

ValidationError returns when validating a field fails.

func (*ValidationError) Error 

func (e *ValidationError) Error() string

Error implements the error interface.

func (*ValidationError) Unwrap 

func (e *ValidationError) Unwrap() error

Unwrap implements the errors.Wrapper interface.

type Value 

type Value = ent.Value

ent aliases to avoid import conflicts in user's code.

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