ent

package
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 Go to latest Published: Jun 11, 2021 License: MIT Imports: 16 Imported by: 0

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Index

Constants

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

	// Node types.
	TypeOrder = "Order"
)

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) 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
	// Order is the client for interacting with the Order builders.
	Order *OrderClient
	// 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().
	Order.
	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 Order 

type Order struct {

	// ID of the ent.
	ID int64 `json:"id,omitempty"`
	// ExchangeID holds the value of the "exchange_id" field.
	ExchangeID int64 `json:"exchange_id,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"`
	// Symbol holds the value of the "symbol" field.
	Symbol string `json:"symbol,omitempty"`
	// Side holds the value of the "side" field.
	Side string `json:"side,omitempty"`
	// Type holds the value of the "type" field.
	Type string `json:"type,omitempty"`
	// Status holds the value of the "status" field.
	Status string `json:"status,omitempty"`
	// Price holds the value of the "price" field.
	Price float64 `json:"price,omitempty"`
	// Quantity holds the value of the "quantity" field.
	Quantity float64 `json:"quantity,omitempty"`
	// GroupID holds the value of the "group_id" field.
	GroupID int64 `json:"group_id,omitempty"`
	// Stop holds the value of the "stop" field.
	Stop float64 `json:"stop,omitempty"`
	// contains filtered or unexported fields
}

Order is the model entity for the Order schema.

func (*Order) String 

func (o *Order) String() string

String implements the fmt.Stringer.

func (*Order) Unwrap 

func (o *Order) Unwrap() *Order

Unwrap unwraps the Order 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 (*Order) Update 

func (o *Order) Update() *OrderUpdateOne

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

type OrderClient 

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

OrderClient is a client for the Order schema.

func NewOrderClient 

func NewOrderClient(c config) *OrderClient

NewOrderClient returns a client for the Order from the given config.

func (*OrderClient) Create 

func (c *OrderClient) Create() *OrderCreate

Create returns a create builder for Order.

func (*OrderClient) CreateBulk 

func (c *OrderClient) CreateBulk(builders ...*OrderCreate) *OrderCreateBulk

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

func (*OrderClient) Delete 

func (c *OrderClient) Delete() *OrderDelete

Delete returns a delete builder for Order.

func (*OrderClient) DeleteOne 

func (c *OrderClient) DeleteOne(o *Order) *OrderDeleteOne

DeleteOne returns a delete builder for the given entity.

func (*OrderClient) DeleteOneID 

func (c *OrderClient) DeleteOneID(id int64) *OrderDeleteOne

DeleteOneID returns a delete builder for the given id.

func (*OrderClient) Get 

func (c *OrderClient) Get(ctx context.Context, id int64) (*Order, error)

Get returns a Order entity by its id.

func (*OrderClient) GetX 

func (c *OrderClient) GetX(ctx context.Context, id int64) *Order

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

func (*OrderClient) Hooks 

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

Hooks returns the client hooks.

func (*OrderClient) Query 

func (c *OrderClient) Query() *OrderQuery

Query returns a query builder for Order.

func (*OrderClient) Update 

func (c *OrderClient) Update() *OrderUpdate

Update returns an update builder for Order.

func (*OrderClient) UpdateOne 

func (c *OrderClient) UpdateOne(o *Order) *OrderUpdateOne

UpdateOne returns an update builder for the given entity.

func (*OrderClient) UpdateOneID 

func (c *OrderClient) UpdateOneID(id int64) *OrderUpdateOne

UpdateOneID returns an update builder for the given id.

func (*OrderClient) Use 

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

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

type OrderCreate 

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

OrderCreate is the builder for creating a Order entity.

func (*OrderCreate) Mutation 

func (oc *OrderCreate) Mutation() *OrderMutation

Mutation returns the OrderMutation object of the builder.

func (*OrderCreate) Save 

func (oc *OrderCreate) Save(ctx context.Context) (*Order, error)

Save creates the Order in the database.

func (*OrderCreate) SaveX 

func (oc *OrderCreate) SaveX(ctx context.Context) *Order

SaveX calls Save and panics if Save returns an error.

func (*OrderCreate) SetCreatedAt 

func (oc *OrderCreate) SetCreatedAt(t time.Time) *OrderCreate

SetCreatedAt sets the "created_at" field.

func (*OrderCreate) SetExchangeID 

func (oc *OrderCreate) SetExchangeID(i int64) *OrderCreate

SetExchangeID sets the "exchange_id" field.

func (*OrderCreate) SetGroupID 

func (oc *OrderCreate) SetGroupID(i int64) *OrderCreate

SetGroupID sets the "group_id" field.

func (*OrderCreate) SetID 

func (oc *OrderCreate) SetID(i int64) *OrderCreate

SetID sets the "id" field.

func (*OrderCreate) SetNillableGroupID 

func (oc *OrderCreate) SetNillableGroupID(i *int64) *OrderCreate

SetNillableGroupID sets the "group_id" field if the given value is not nil.

func (*OrderCreate) SetNillableStop 

func (oc *OrderCreate) SetNillableStop(f *float64) *OrderCreate

SetNillableStop sets the "stop" field if the given value is not nil.

func (*OrderCreate) SetPrice 

func (oc *OrderCreate) SetPrice(f float64) *OrderCreate

SetPrice sets the "price" field.

func (*OrderCreate) SetQuantity 

func (oc *OrderCreate) SetQuantity(f float64) *OrderCreate

SetQuantity sets the "quantity" field.

func (*OrderCreate) SetSide 

func (oc *OrderCreate) SetSide(s string) *OrderCreate

SetSide sets the "side" field.

func (*OrderCreate) SetStatus 

func (oc *OrderCreate) SetStatus(s string) *OrderCreate

SetStatus sets the "status" field.

func (*OrderCreate) SetStop 

func (oc *OrderCreate) SetStop(f float64) *OrderCreate

SetStop sets the "stop" field.

func (*OrderCreate) SetSymbol 

func (oc *OrderCreate) SetSymbol(s string) *OrderCreate

SetSymbol sets the "symbol" field.

func (*OrderCreate) SetType 

func (oc *OrderCreate) SetType(s string) *OrderCreate

SetType sets the "type" field.

func (*OrderCreate) SetUpdatedAt 

func (oc *OrderCreate) SetUpdatedAt(t time.Time) *OrderCreate

SetUpdatedAt sets the "updated_at" field.

type OrderCreateBulk 

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

OrderCreateBulk is the builder for creating many Order entities in bulk.

func (*OrderCreateBulk) Save 

func (ocb *OrderCreateBulk) Save(ctx context.Context) ([]*Order, error)

Save creates the Order entities in the database.

func (*OrderCreateBulk) SaveX 

func (ocb *OrderCreateBulk) SaveX(ctx context.Context) []*Order

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

type OrderDelete 

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

OrderDelete is the builder for deleting a Order entity.

func (*OrderDelete) Exec 

func (od *OrderDelete) Exec(ctx context.Context) (int, error)

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

func (*OrderDelete) ExecX 

func (od *OrderDelete) ExecX(ctx context.Context) int

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

func (*OrderDelete) Where 

func (od *OrderDelete) Where(ps ...predicate.Order) *OrderDelete

Where adds a new predicate to the OrderDelete builder.

type OrderDeleteOne 

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

OrderDeleteOne is the builder for deleting a single Order entity.

func (*OrderDeleteOne) Exec 

func (odo *OrderDeleteOne) Exec(ctx context.Context) error

Exec executes the deletion query.

func (*OrderDeleteOne) ExecX 

func (odo *OrderDeleteOne) ExecX(ctx context.Context)

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

type OrderFunc 

type OrderFunc func(*sql.Selector)

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 OrderGroupBy 

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

OrderGroupBy is the group-by builder for Order entities.

func (*OrderGroupBy) Aggregate 

func (ogb *OrderGroupBy) Aggregate(fns ...AggregateFunc) *OrderGroupBy

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

func (*OrderGroupBy) Bool 

func (ogb *OrderGroupBy) 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 (*OrderGroupBy) BoolX 

func (ogb *OrderGroupBy) BoolX(ctx context.Context) bool

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

func (*OrderGroupBy) Bools 

func (ogb *OrderGroupBy) 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 (*OrderGroupBy) BoolsX 

func (ogb *OrderGroupBy) BoolsX(ctx context.Context) []bool

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

func (*OrderGroupBy) Float64 

func (ogb *OrderGroupBy) 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 (*OrderGroupBy) Float64X 

func (ogb *OrderGroupBy) Float64X(ctx context.Context) float64

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

func (*OrderGroupBy) Float64s 

func (ogb *OrderGroupBy) 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 (*OrderGroupBy) Float64sX 

func (ogb *OrderGroupBy) Float64sX(ctx context.Context) []float64

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

func (*OrderGroupBy) Int 

func (ogb *OrderGroupBy) 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 (*OrderGroupBy) IntX 

func (ogb *OrderGroupBy) IntX(ctx context.Context) int

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

func (*OrderGroupBy) Ints 

func (ogb *OrderGroupBy) 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 (*OrderGroupBy) IntsX 

func (ogb *OrderGroupBy) IntsX(ctx context.Context) []int

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

func (*OrderGroupBy) Scan 

func (ogb *OrderGroupBy) Scan(ctx context.Context, v interface{}) error

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

func (*OrderGroupBy) ScanX 

func (ogb *OrderGroupBy) ScanX(ctx context.Context, v interface{})

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

func (*OrderGroupBy) String 

func (ogb *OrderGroupBy) 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 (*OrderGroupBy) StringX 

func (ogb *OrderGroupBy) StringX(ctx context.Context) string

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

func (*OrderGroupBy) Strings 

func (ogb *OrderGroupBy) 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 (*OrderGroupBy) StringsX 

func (ogb *OrderGroupBy) StringsX(ctx context.Context) []string

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

type OrderMutation 

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

OrderMutation represents an operation that mutates the Order nodes in the graph.

func (*OrderMutation) AddExchangeID 

func (m *OrderMutation) AddExchangeID(i int64)

AddExchangeID adds i to the "exchange_id" field.

func (*OrderMutation) AddField 

func (m *OrderMutation) 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 (*OrderMutation) AddGroupID 

func (m *OrderMutation) AddGroupID(i int64)

AddGroupID adds i to the "group_id" field.

func (*OrderMutation) AddPrice 

func (m *OrderMutation) AddPrice(f float64)

AddPrice adds f to the "price" field.

func (*OrderMutation) AddQuantity 

func (m *OrderMutation) AddQuantity(f float64)

AddQuantity adds f to the "quantity" field.

func (*OrderMutation) AddStop 

func (m *OrderMutation) AddStop(f float64)

AddStop adds f to the "stop" field.

func (*OrderMutation) AddedEdges 

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

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

func (*OrderMutation) AddedExchangeID 

func (m *OrderMutation) AddedExchangeID() (r int64, exists bool)

AddedExchangeID returns the value that was added to the "exchange_id" field in this mutation.

func (*OrderMutation) AddedField 

func (m *OrderMutation) 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 (*OrderMutation) AddedFields 

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

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

func (*OrderMutation) AddedGroupID 

func (m *OrderMutation) AddedGroupID() (r int64, exists bool)

AddedGroupID returns the value that was added to the "group_id" field in this mutation.

func (*OrderMutation) AddedIDs 

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

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

func (*OrderMutation) AddedPrice 

func (m *OrderMutation) AddedPrice() (r float64, exists bool)

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

func (*OrderMutation) AddedQuantity 

func (m *OrderMutation) AddedQuantity() (r float64, exists bool)

AddedQuantity returns the value that was added to the "quantity" field in this mutation.

func (*OrderMutation) AddedStop 

func (m *OrderMutation) AddedStop() (r float64, exists bool)

AddedStop returns the value that was added to the "stop" field in this mutation.

func (*OrderMutation) ClearEdge 

func (m *OrderMutation) 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 (*OrderMutation) ClearField 

func (m *OrderMutation) 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 (*OrderMutation) ClearGroupID 

func (m *OrderMutation) ClearGroupID()

ClearGroupID clears the value of the "group_id" field.

func (*OrderMutation) ClearStop 

func (m *OrderMutation) ClearStop()

ClearStop clears the value of the "stop" field.

func (*OrderMutation) ClearedEdges 

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

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

func (*OrderMutation) ClearedFields 

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

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

func (OrderMutation) Client 

func (m OrderMutation) 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 (*OrderMutation) CreatedAt 

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

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

func (*OrderMutation) EdgeCleared 

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

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

func (*OrderMutation) ExchangeID 

func (m *OrderMutation) ExchangeID() (r int64, exists bool)

ExchangeID returns the value of the "exchange_id" field in the mutation.

func (*OrderMutation) Field 

func (m *OrderMutation) 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 (*OrderMutation) FieldCleared 

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

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

func (*OrderMutation) Fields 

func (m *OrderMutation) 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 (*OrderMutation) GetType 

func (m *OrderMutation) GetType() (r string, exists bool)

GetType returns the value of the "type" field in the mutation.

func (*OrderMutation) GroupID 

func (m *OrderMutation) GroupID() (r int64, exists bool)

GroupID returns the value of the "group_id" field in the mutation.

func (*OrderMutation) GroupIDCleared 

func (m *OrderMutation) GroupIDCleared() bool

GroupIDCleared returns if the "group_id" field was cleared in this mutation.

func (*OrderMutation) ID 

func (m *OrderMutation) ID() (id int64, 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 (*OrderMutation) OldCreatedAt 

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

OldCreatedAt returns the old "created_at" field's value of the Order entity. If the Order 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 (*OrderMutation) OldExchangeID 

func (m *OrderMutation) OldExchangeID(ctx context.Context) (v int64, err error)

OldExchangeID returns the old "exchange_id" field's value of the Order entity. If the Order 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 (*OrderMutation) OldField 

func (m *OrderMutation) 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 (*OrderMutation) OldGroupID 

func (m *OrderMutation) OldGroupID(ctx context.Context) (v int64, err error)

OldGroupID returns the old "group_id" field's value of the Order entity. If the Order 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 (*OrderMutation) OldPrice 

func (m *OrderMutation) OldPrice(ctx context.Context) (v float64, err error)

OldPrice returns the old "price" field's value of the Order entity. If the Order 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 (*OrderMutation) OldQuantity 

func (m *OrderMutation) OldQuantity(ctx context.Context) (v float64, err error)

OldQuantity returns the old "quantity" field's value of the Order entity. If the Order 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 (*OrderMutation) OldSide 

func (m *OrderMutation) OldSide(ctx context.Context) (v string, err error)

OldSide returns the old "side" field's value of the Order entity. If the Order 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 (*OrderMutation) OldStatus 

func (m *OrderMutation) OldStatus(ctx context.Context) (v string, err error)

OldStatus returns the old "status" field's value of the Order entity. If the Order 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 (*OrderMutation) OldStop 

func (m *OrderMutation) OldStop(ctx context.Context) (v float64, err error)

OldStop returns the old "stop" field's value of the Order entity. If the Order 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 (*OrderMutation) OldSymbol 

func (m *OrderMutation) OldSymbol(ctx context.Context) (v string, err error)

OldSymbol returns the old "symbol" field's value of the Order entity. If the Order 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 (*OrderMutation) OldType 

func (m *OrderMutation) OldType(ctx context.Context) (v string, err error)

OldType returns the old "type" field's value of the Order entity. If the Order 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 (*OrderMutation) OldUpdatedAt 

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

OldUpdatedAt returns the old "updated_at" field's value of the Order entity. If the Order 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 (*OrderMutation) Op 

func (m *OrderMutation) Op() Op

Op returns the operation name.

func (*OrderMutation) Price 

func (m *OrderMutation) Price() (r float64, exists bool)

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

func (*OrderMutation) Quantity 

func (m *OrderMutation) Quantity() (r float64, exists bool)

Quantity returns the value of the "quantity" field in the mutation.

func (*OrderMutation) RemovedEdges 

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

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

func (*OrderMutation) RemovedIDs 

func (m *OrderMutation) 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 (*OrderMutation) ResetCreatedAt 

func (m *OrderMutation) ResetCreatedAt()

ResetCreatedAt resets all changes to the "created_at" field.

func (*OrderMutation) ResetEdge 

func (m *OrderMutation) 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 (*OrderMutation) ResetExchangeID 

func (m *OrderMutation) ResetExchangeID()

ResetExchangeID resets all changes to the "exchange_id" field.

func (*OrderMutation) ResetField 

func (m *OrderMutation) 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 (*OrderMutation) ResetGroupID 

func (m *OrderMutation) ResetGroupID()

ResetGroupID resets all changes to the "group_id" field.

func (*OrderMutation) ResetPrice 

func (m *OrderMutation) ResetPrice()

ResetPrice resets all changes to the "price" field.

func (*OrderMutation) ResetQuantity 

func (m *OrderMutation) ResetQuantity()

ResetQuantity resets all changes to the "quantity" field.

func (*OrderMutation) ResetSide 

func (m *OrderMutation) ResetSide()

ResetSide resets all changes to the "side" field.

func (*OrderMutation) ResetStatus 

func (m *OrderMutation) ResetStatus()

ResetStatus resets all changes to the "status" field.

func (*OrderMutation) ResetStop 

func (m *OrderMutation) ResetStop()

ResetStop resets all changes to the "stop" field.

func (*OrderMutation) ResetSymbol 

func (m *OrderMutation) ResetSymbol()

ResetSymbol resets all changes to the "symbol" field.

func (*OrderMutation) ResetType 

func (m *OrderMutation) ResetType()

ResetType resets all changes to the "type" field.

func (*OrderMutation) ResetUpdatedAt 

func (m *OrderMutation) ResetUpdatedAt()

ResetUpdatedAt resets all changes to the "updated_at" field.

func (*OrderMutation) SetCreatedAt 

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

SetCreatedAt sets the "created_at" field.

func (*OrderMutation) SetExchangeID 

func (m *OrderMutation) SetExchangeID(i int64)

SetExchangeID sets the "exchange_id" field.

func (*OrderMutation) SetField 

func (m *OrderMutation) 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 (*OrderMutation) SetGroupID 

func (m *OrderMutation) SetGroupID(i int64)

SetGroupID sets the "group_id" field.

func (*OrderMutation) SetID 

func (m *OrderMutation) SetID(id int64)

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

func (*OrderMutation) SetPrice 

func (m *OrderMutation) SetPrice(f float64)

SetPrice sets the "price" field.

func (*OrderMutation) SetQuantity 

func (m *OrderMutation) SetQuantity(f float64)

SetQuantity sets the "quantity" field.

func (*OrderMutation) SetSide 

func (m *OrderMutation) SetSide(s string)

SetSide sets the "side" field.

func (*OrderMutation) SetStatus 

func (m *OrderMutation) SetStatus(s string)

SetStatus sets the "status" field.

func (*OrderMutation) SetStop 

func (m *OrderMutation) SetStop(f float64)

SetStop sets the "stop" field.

func (*OrderMutation) SetSymbol 

func (m *OrderMutation) SetSymbol(s string)

SetSymbol sets the "symbol" field.

func (*OrderMutation) SetType 

func (m *OrderMutation) SetType(s string)

SetType sets the "type" field.

func (*OrderMutation) SetUpdatedAt 

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

SetUpdatedAt sets the "updated_at" field.

func (*OrderMutation) Side 

func (m *OrderMutation) Side() (r string, exists bool)

Side returns the value of the "side" field in the mutation.

func (*OrderMutation) Status 

func (m *OrderMutation) Status() (r string, exists bool)

Status returns the value of the "status" field in the mutation.

func (*OrderMutation) Stop 

func (m *OrderMutation) Stop() (r float64, exists bool)

Stop returns the value of the "stop" field in the mutation.

func (*OrderMutation) StopCleared 

func (m *OrderMutation) StopCleared() bool

StopCleared returns if the "stop" field was cleared in this mutation.

func (*OrderMutation) Symbol 

func (m *OrderMutation) Symbol() (r string, exists bool)

Symbol returns the value of the "symbol" field in the mutation.

func (OrderMutation) Tx 

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

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

func (*OrderMutation) Type 

func (m *OrderMutation) Type() string

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

func (*OrderMutation) UpdatedAt 

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

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

type OrderQuery 

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

OrderQuery is the builder for querying Order entities.

func (*OrderQuery) All 

func (oq *OrderQuery) All(ctx context.Context) ([]*Order, error)

All executes the query and returns a list of Orders.

func (*OrderQuery) AllX 

func (oq *OrderQuery) AllX(ctx context.Context) []*Order

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

func (*OrderQuery) Clone 

func (oq *OrderQuery) Clone() *OrderQuery

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

func (*OrderQuery) Count 

func (oq *OrderQuery) Count(ctx context.Context) (int, error)

Count returns the count of the given query.

func (*OrderQuery) CountX 

func (oq *OrderQuery) CountX(ctx context.Context) int

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

func (*OrderQuery) Exist 

func (oq *OrderQuery) Exist(ctx context.Context) (bool, error)

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

func (*OrderQuery) ExistX 

func (oq *OrderQuery) ExistX(ctx context.Context) bool

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

func (*OrderQuery) First 

func (oq *OrderQuery) First(ctx context.Context) (*Order, error)

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

func (*OrderQuery) FirstID 

func (oq *OrderQuery) FirstID(ctx context.Context) (id int64, err error)

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

func (*OrderQuery) FirstIDX 

func (oq *OrderQuery) FirstIDX(ctx context.Context) int64

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

func (*OrderQuery) FirstX 

func (oq *OrderQuery) FirstX(ctx context.Context) *Order

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

func (*OrderQuery) GroupBy 

func (oq *OrderQuery) GroupBy(field string, fields ...string) *OrderGroupBy

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 {
	ExchangeID int64 `json:"exchange_id,omitempty"`
	Count int `json:"count,omitempty"`
}

client.Order.Query().
	GroupBy(order.FieldExchangeID).
	Aggregate(ent.Count()).
	Scan(ctx, &v)

func (*OrderQuery) IDs 

func (oq *OrderQuery) IDs(ctx context.Context) ([]int64, error)

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

func (*OrderQuery) IDsX 

func (oq *OrderQuery) IDsX(ctx context.Context) []int64

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

func (*OrderQuery) Limit 

func (oq *OrderQuery) Limit(limit int) *OrderQuery

Limit adds a limit step to the query.

func (*OrderQuery) Offset 

func (oq *OrderQuery) Offset(offset int) *OrderQuery

Offset adds an offset step to the query.

func (*OrderQuery) Only 

func (oq *OrderQuery) Only(ctx context.Context) (*Order, error)

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

func (*OrderQuery) OnlyID 

func (oq *OrderQuery) OnlyID(ctx context.Context) (id int64, err error)

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

func (*OrderQuery) OnlyIDX 

func (oq *OrderQuery) OnlyIDX(ctx context.Context) int64

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

func (*OrderQuery) OnlyX 

func (oq *OrderQuery) OnlyX(ctx context.Context) *Order

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

func (*OrderQuery) Order 

func (oq *OrderQuery) Order(o ...OrderFunc) *OrderQuery

Order adds an order step to the query.

func (*OrderQuery) Select 

func (oq *OrderQuery) Select(field string, fields ...string) *OrderSelect

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 {
	ExchangeID int64 `json:"exchange_id,omitempty"`
}

client.Order.Query().
	Select(order.FieldExchangeID).
	Scan(ctx, &v)

func (*OrderQuery) Unique 

func (oq *OrderQuery) Unique(unique bool) *OrderQuery

Unique configures the query builder to filter duplicate records on query. By default, unique is set to true, and can be disabled using this method.

func (*OrderQuery) Where 

func (oq *OrderQuery) Where(ps ...predicate.Order) *OrderQuery

Where adds a new predicate for the OrderQuery builder.

type OrderSelect 

type OrderSelect struct {
	*OrderQuery
	// contains filtered or unexported fields
}

OrderSelect is the builder for selecting fields of Order entities.

func (*OrderSelect) Bool 

func (os *OrderSelect) Bool(ctx context.Context) (_ bool, err error)

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

func (*OrderSelect) BoolX 

func (os *OrderSelect) BoolX(ctx context.Context) bool

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

func (*OrderSelect) Bools 

func (os *OrderSelect) Bools(ctx context.Context) ([]bool, error)

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

func (*OrderSelect) BoolsX 

func (os *OrderSelect) BoolsX(ctx context.Context) []bool

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

func (*OrderSelect) Float64 

func (os *OrderSelect) Float64(ctx context.Context) (_ float64, err error)

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

func (*OrderSelect) Float64X 

func (os *OrderSelect) Float64X(ctx context.Context) float64

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

func (*OrderSelect) Float64s 

func (os *OrderSelect) Float64s(ctx context.Context) ([]float64, error)

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

func (*OrderSelect) Float64sX 

func (os *OrderSelect) Float64sX(ctx context.Context) []float64

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

func (*OrderSelect) Int 

func (os *OrderSelect) Int(ctx context.Context) (_ int, err error)

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

func (*OrderSelect) IntX 

func (os *OrderSelect) IntX(ctx context.Context) int

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

func (*OrderSelect) Ints 

func (os *OrderSelect) Ints(ctx context.Context) ([]int, error)

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

func (*OrderSelect) IntsX 

func (os *OrderSelect) IntsX(ctx context.Context) []int

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

func (*OrderSelect) Scan 

func (os *OrderSelect) Scan(ctx context.Context, v interface{}) error

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

func (*OrderSelect) ScanX 

func (os *OrderSelect) ScanX(ctx context.Context, v interface{})

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

func (*OrderSelect) String 

func (os *OrderSelect) String(ctx context.Context) (_ string, err error)

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

func (*OrderSelect) StringX 

func (os *OrderSelect) StringX(ctx context.Context) string

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

func (*OrderSelect) Strings 

func (os *OrderSelect) Strings(ctx context.Context) ([]string, error)

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

func (*OrderSelect) StringsX 

func (os *OrderSelect) StringsX(ctx context.Context) []string

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

type OrderUpdate 

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

OrderUpdate is the builder for updating Order entities.

func (*OrderUpdate) AddExchangeID 

func (ou *OrderUpdate) AddExchangeID(i int64) *OrderUpdate

AddExchangeID adds i to the "exchange_id" field.

func (*OrderUpdate) AddGroupID 

func (ou *OrderUpdate) AddGroupID(i int64) *OrderUpdate

AddGroupID adds i to the "group_id" field.

func (*OrderUpdate) AddPrice 

func (ou *OrderUpdate) AddPrice(f float64) *OrderUpdate

AddPrice adds f to the "price" field.

func (*OrderUpdate) AddQuantity 

func (ou *OrderUpdate) AddQuantity(f float64) *OrderUpdate

AddQuantity adds f to the "quantity" field.

func (*OrderUpdate) AddStop 

func (ou *OrderUpdate) AddStop(f float64) *OrderUpdate

AddStop adds f to the "stop" field.

func (*OrderUpdate) ClearGroupID 

func (ou *OrderUpdate) ClearGroupID() *OrderUpdate

ClearGroupID clears the value of the "group_id" field.

func (*OrderUpdate) ClearStop 

func (ou *OrderUpdate) ClearStop() *OrderUpdate

ClearStop clears the value of the "stop" field.

func (*OrderUpdate) Exec 

func (ou *OrderUpdate) Exec(ctx context.Context) error

Exec executes the query.

func (*OrderUpdate) ExecX 

func (ou *OrderUpdate) ExecX(ctx context.Context)

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

func (*OrderUpdate) Mutation 

func (ou *OrderUpdate) Mutation() *OrderMutation

Mutation returns the OrderMutation object of the builder.

func (*OrderUpdate) Save 

func (ou *OrderUpdate) Save(ctx context.Context) (int, error)

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

func (*OrderUpdate) SaveX 

func (ou *OrderUpdate) SaveX(ctx context.Context) int

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

func (*OrderUpdate) SetCreatedAt 

func (ou *OrderUpdate) SetCreatedAt(t time.Time) *OrderUpdate

SetCreatedAt sets the "created_at" field.

func (*OrderUpdate) SetExchangeID 

func (ou *OrderUpdate) SetExchangeID(i int64) *OrderUpdate

SetExchangeID sets the "exchange_id" field.

func (*OrderUpdate) SetGroupID 

func (ou *OrderUpdate) SetGroupID(i int64) *OrderUpdate

SetGroupID sets the "group_id" field.

func (*OrderUpdate) SetNillableGroupID 

func (ou *OrderUpdate) SetNillableGroupID(i *int64) *OrderUpdate

SetNillableGroupID sets the "group_id" field if the given value is not nil.

func (*OrderUpdate) SetNillableStop 

func (ou *OrderUpdate) SetNillableStop(f *float64) *OrderUpdate

SetNillableStop sets the "stop" field if the given value is not nil.

func (*OrderUpdate) SetPrice 

func (ou *OrderUpdate) SetPrice(f float64) *OrderUpdate

SetPrice sets the "price" field.

func (*OrderUpdate) SetQuantity 

func (ou *OrderUpdate) SetQuantity(f float64) *OrderUpdate

SetQuantity sets the "quantity" field.

func (*OrderUpdate) SetSide 

func (ou *OrderUpdate) SetSide(s string) *OrderUpdate

SetSide sets the "side" field.

func (*OrderUpdate) SetStatus 

func (ou *OrderUpdate) SetStatus(s string) *OrderUpdate

SetStatus sets the "status" field.

func (*OrderUpdate) SetStop 

func (ou *OrderUpdate) SetStop(f float64) *OrderUpdate

SetStop sets the "stop" field.

func (*OrderUpdate) SetSymbol 

func (ou *OrderUpdate) SetSymbol(s string) *OrderUpdate

SetSymbol sets the "symbol" field.

func (*OrderUpdate) SetType 

func (ou *OrderUpdate) SetType(s string) *OrderUpdate

SetType sets the "type" field.

func (*OrderUpdate) SetUpdatedAt 

func (ou *OrderUpdate) SetUpdatedAt(t time.Time) *OrderUpdate

SetUpdatedAt sets the "updated_at" field.

func (*OrderUpdate) Where 

func (ou *OrderUpdate) Where(ps ...predicate.Order) *OrderUpdate

Where adds a new predicate for the OrderUpdate builder.

type OrderUpdateOne 

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

OrderUpdateOne is the builder for updating a single Order entity.

func (*OrderUpdateOne) AddExchangeID 

func (ouo *OrderUpdateOne) AddExchangeID(i int64) *OrderUpdateOne

AddExchangeID adds i to the "exchange_id" field.

func (*OrderUpdateOne) AddGroupID 

func (ouo *OrderUpdateOne) AddGroupID(i int64) *OrderUpdateOne

AddGroupID adds i to the "group_id" field.

func (*OrderUpdateOne) AddPrice 

func (ouo *OrderUpdateOne) AddPrice(f float64) *OrderUpdateOne

AddPrice adds f to the "price" field.

func (*OrderUpdateOne) AddQuantity 

func (ouo *OrderUpdateOne) AddQuantity(f float64) *OrderUpdateOne

AddQuantity adds f to the "quantity" field.

func (*OrderUpdateOne) AddStop 

func (ouo *OrderUpdateOne) AddStop(f float64) *OrderUpdateOne

AddStop adds f to the "stop" field.

func (*OrderUpdateOne) ClearGroupID 

func (ouo *OrderUpdateOne) ClearGroupID() *OrderUpdateOne

ClearGroupID clears the value of the "group_id" field.

func (*OrderUpdateOne) ClearStop 

func (ouo *OrderUpdateOne) ClearStop() *OrderUpdateOne

ClearStop clears the value of the "stop" field.

func (*OrderUpdateOne) Exec 

func (ouo *OrderUpdateOne) Exec(ctx context.Context) error

Exec executes the query on the entity.

func (*OrderUpdateOne) ExecX 

func (ouo *OrderUpdateOne) ExecX(ctx context.Context)

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

func (*OrderUpdateOne) Mutation 

func (ouo *OrderUpdateOne) Mutation() *OrderMutation

Mutation returns the OrderMutation object of the builder.

func (*OrderUpdateOne) Save 

func (ouo *OrderUpdateOne) Save(ctx context.Context) (*Order, error)

Save executes the query and returns the updated Order entity.

func (*OrderUpdateOne) SaveX 

func (ouo *OrderUpdateOne) SaveX(ctx context.Context) *Order

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

func (*OrderUpdateOne) Select 

func (ouo *OrderUpdateOne) Select(field string, fields ...string) *OrderUpdateOne

Select allows selecting one or more fields (columns) of the returned entity. The default is selecting all fields defined in the entity schema.

func (*OrderUpdateOne) SetCreatedAt 

func (ouo *OrderUpdateOne) SetCreatedAt(t time.Time) *OrderUpdateOne

SetCreatedAt sets the "created_at" field.

func (*OrderUpdateOne) SetExchangeID 

func (ouo *OrderUpdateOne) SetExchangeID(i int64) *OrderUpdateOne

SetExchangeID sets the "exchange_id" field.

func (*OrderUpdateOne) SetGroupID 

func (ouo *OrderUpdateOne) SetGroupID(i int64) *OrderUpdateOne

SetGroupID sets the "group_id" field.

func (*OrderUpdateOne) SetNillableGroupID 

func (ouo *OrderUpdateOne) SetNillableGroupID(i *int64) *OrderUpdateOne

SetNillableGroupID sets the "group_id" field if the given value is not nil.

func (*OrderUpdateOne) SetNillableStop 

func (ouo *OrderUpdateOne) SetNillableStop(f *float64) *OrderUpdateOne

SetNillableStop sets the "stop" field if the given value is not nil.

func (*OrderUpdateOne) SetPrice 

func (ouo *OrderUpdateOne) SetPrice(f float64) *OrderUpdateOne

SetPrice sets the "price" field.

func (*OrderUpdateOne) SetQuantity 

func (ouo *OrderUpdateOne) SetQuantity(f float64) *OrderUpdateOne

SetQuantity sets the "quantity" field.

func (*OrderUpdateOne) SetSide 

func (ouo *OrderUpdateOne) SetSide(s string) *OrderUpdateOne

SetSide sets the "side" field.

func (*OrderUpdateOne) SetStatus 

func (ouo *OrderUpdateOne) SetStatus(s string) *OrderUpdateOne

SetStatus sets the "status" field.

func (*OrderUpdateOne) SetStop 

func (ouo *OrderUpdateOne) SetStop(f float64) *OrderUpdateOne

SetStop sets the "stop" field.

func (*OrderUpdateOne) SetSymbol 

func (ouo *OrderUpdateOne) SetSymbol(s string) *OrderUpdateOne

SetSymbol sets the "symbol" field.

func (*OrderUpdateOne) SetType 

func (ouo *OrderUpdateOne) SetType(s string) *OrderUpdateOne

SetType sets the "type" field.

func (*OrderUpdateOne) SetUpdatedAt 

func (ouo *OrderUpdateOne) SetUpdatedAt(t time.Time) *OrderUpdateOne

SetUpdatedAt sets the "updated_at" field.

type Orders 

type Orders []*Order

Orders is a parsable slice of Order.

type Policy 

type Policy = ent.Policy

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

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 {

	// Order is the client for interacting with the Order builders.
	Order *OrderClient
	// 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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