ent

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 Go to latest Published: May 6, 2024 License: MIT Imports: 16 Imported by: 0

Documentation

Index

Constants

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

	// Node types.
	TypeCounter = "Counter"
)

Variables

View Source 
var ErrTxStarted = errors.New("ent: cannot start a transaction within a transaction")

ErrTxStarted is returned when trying to start a new transaction from a transactional client.

Functions

func Asc 

func Asc(fields ...string) func(*sql.Selector)

Asc applies the given fields in ASC order.

func Desc 

func Desc(fields ...string) func(*sql.Selector)

Desc applies the given fields in DESC order.

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 validation 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
	// Counter is the client for interacting with the Counter builders.
	Counter *CounterClient
	// 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().
	Counter.
	Query().
	Count(ctx)

func (*Client) Intercept 

func (c *Client) Intercept(interceptors ...Interceptor)

Intercept adds the query interceptors to all the entity clients. In order to add interceptors to a specific client, call: `client.Node.Intercept(...)`.

func (*Client) Mutate 

func (c *Client) Mutate(ctx context.Context, m Mutation) (Value, error)

Mutate implements the ent.Mutator interface.

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(ctx 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 Commit 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 Counter 

type Counter struct {

	// ID of the ent.
	ID string `json:"id,omitempty"`
	// Value holds the value of the "value" field.
	Value int64 `json:"value,omitempty"`
	// contains filtered or unexported fields
}

Counter is the model entity for the Counter schema.

func (*Counter) GetValue 

func (c *Counter) GetValue(name string) (ent.Value, error)

GetValue returns the ent.Value that was dynamically selected and assigned to the Counter. This includes values selected through modifiers, order, etc.

func (*Counter) String 

func (c *Counter) String() string

String implements the fmt.Stringer.

func (*Counter) Unwrap 

func (c *Counter) Unwrap() *Counter

Unwrap unwraps the Counter 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 (*Counter) Update 

func (c *Counter) Update() *CounterUpdateOne

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

type CounterClient 

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

CounterClient is a client for the Counter schema.

func NewCounterClient 

func NewCounterClient(c config) *CounterClient

NewCounterClient returns a client for the Counter from the given config.

func (*CounterClient) Create 

func (c *CounterClient) Create() *CounterCreate

Create returns a builder for creating a Counter entity.

func (*CounterClient) CreateBulk 

func (c *CounterClient) CreateBulk(builders ...*CounterCreate) *CounterCreateBulk

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

func (*CounterClient) Delete 

func (c *CounterClient) Delete() *CounterDelete

Delete returns a delete builder for Counter.

func (*CounterClient) DeleteOne 

func (c *CounterClient) DeleteOne(co *Counter) *CounterDeleteOne

DeleteOne returns a builder for deleting the given entity.

func (*CounterClient) DeleteOneID 

func (c *CounterClient) DeleteOneID(id string) *CounterDeleteOne

DeleteOneID returns a builder for deleting the given entity by its id.

func (*CounterClient) Get 

func (c *CounterClient) Get(ctx context.Context, id string) (*Counter, error)

Get returns a Counter entity by its id.

func (*CounterClient) GetX 

func (c *CounterClient) GetX(ctx context.Context, id string) *Counter

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

func (*CounterClient) Hooks 

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

Hooks returns the client hooks.

func (*CounterClient) Intercept 

func (c *CounterClient) Intercept(interceptors ...Interceptor)

Intercept adds a list of query interceptors to the interceptors stack. A call to `Intercept(f, g, h)` equals to `counter.Intercept(f(g(h())))`.

func (*CounterClient) Interceptors 

func (c *CounterClient) Interceptors() []Interceptor

Interceptors returns the client interceptors.

func (*CounterClient) MapCreateBulk 

func (c *CounterClient) MapCreateBulk(slice any, setFunc func(*CounterCreate, int)) *CounterCreateBulk

MapCreateBulk creates a bulk creation builder from the given slice. For each item in the slice, the function creates a builder and applies setFunc on it.

func (*CounterClient) Query 

func (c *CounterClient) Query() *CounterQuery

Query returns a query builder for Counter.

func (*CounterClient) Update 

func (c *CounterClient) Update() *CounterUpdate

Update returns an update builder for Counter.

func (*CounterClient) UpdateOne 

func (c *CounterClient) UpdateOne(co *Counter) *CounterUpdateOne

UpdateOne returns an update builder for the given entity.

func (*CounterClient) UpdateOneID 

func (c *CounterClient) UpdateOneID(id string) *CounterUpdateOne

UpdateOneID returns an update builder for the given id.

func (*CounterClient) Use 

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

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

type CounterCreate 

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

CounterCreate is the builder for creating a Counter entity.

func (*CounterCreate) Exec 

func (cc *CounterCreate) Exec(ctx context.Context) error

Exec executes the query.

func (*CounterCreate) ExecX 

func (cc *CounterCreate) ExecX(ctx context.Context)

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

func (*CounterCreate) Mutation 

func (cc *CounterCreate) Mutation() *CounterMutation

Mutation returns the CounterMutation object of the builder.

func (*CounterCreate) Save 

func (cc *CounterCreate) Save(ctx context.Context) (*Counter, error)

Save creates the Counter in the database.

func (*CounterCreate) SaveX 

func (cc *CounterCreate) SaveX(ctx context.Context) *Counter

SaveX calls Save and panics if Save returns an error.

func (*CounterCreate) SetID 

func (cc *CounterCreate) SetID(s string) *CounterCreate

SetID sets the "id" field.

func (*CounterCreate) SetValue 

func (cc *CounterCreate) SetValue(i int64) *CounterCreate

SetValue sets the "value" field.

type CounterCreateBulk 

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

CounterCreateBulk is the builder for creating many Counter entities in bulk.

func (*CounterCreateBulk) Exec 

func (ccb *CounterCreateBulk) Exec(ctx context.Context) error

Exec executes the query.

func (*CounterCreateBulk) ExecX 

func (ccb *CounterCreateBulk) ExecX(ctx context.Context)

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

func (*CounterCreateBulk) Save 

func (ccb *CounterCreateBulk) Save(ctx context.Context) ([]*Counter, error)

Save creates the Counter entities in the database.

func (*CounterCreateBulk) SaveX 

func (ccb *CounterCreateBulk) SaveX(ctx context.Context) []*Counter

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

type CounterDelete 

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

CounterDelete is the builder for deleting a Counter entity.

func (*CounterDelete) Exec 

func (cd *CounterDelete) Exec(ctx context.Context) (int, error)

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

func (*CounterDelete) ExecX 

func (cd *CounterDelete) ExecX(ctx context.Context) int

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

func (*CounterDelete) Where 

func (cd *CounterDelete) Where(ps ...predicate.Counter) *CounterDelete

Where appends a list predicates to the CounterDelete builder.

type CounterDeleteOne 

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

CounterDeleteOne is the builder for deleting a single Counter entity.

func (*CounterDeleteOne) Exec 

func (cdo *CounterDeleteOne) Exec(ctx context.Context) error

Exec executes the deletion query.

func (*CounterDeleteOne) ExecX 

func (cdo *CounterDeleteOne) ExecX(ctx context.Context)

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

func (*CounterDeleteOne) Where 

func (cdo *CounterDeleteOne) Where(ps ...predicate.Counter) *CounterDeleteOne

Where appends a list predicates to the CounterDelete builder.

type CounterGroupBy 

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

CounterGroupBy is the group-by builder for Counter entities.

func (*CounterGroupBy) Aggregate 

func (cgb *CounterGroupBy) Aggregate(fns ...AggregateFunc) *CounterGroupBy

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

func (*CounterGroupBy) Bool 

func (s *CounterGroupBy) Bool(ctx context.Context) (_ bool, err error)

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

func (*CounterGroupBy) BoolX 

func (s *CounterGroupBy) BoolX(ctx context.Context) bool

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

func (*CounterGroupBy) Bools 

func (s *CounterGroupBy) Bools(ctx context.Context) ([]bool, error)

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

func (*CounterGroupBy) BoolsX 

func (s *CounterGroupBy) BoolsX(ctx context.Context) []bool

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

func (*CounterGroupBy) Float64 

func (s *CounterGroupBy) Float64(ctx context.Context) (_ float64, err error)

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

func (*CounterGroupBy) Float64X 

func (s *CounterGroupBy) Float64X(ctx context.Context) float64

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

func (*CounterGroupBy) Float64s 

func (s *CounterGroupBy) Float64s(ctx context.Context) ([]float64, error)

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

func (*CounterGroupBy) Float64sX 

func (s *CounterGroupBy) Float64sX(ctx context.Context) []float64

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

func (*CounterGroupBy) Int 

func (s *CounterGroupBy) Int(ctx context.Context) (_ int, err error)

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

func (*CounterGroupBy) IntX 

func (s *CounterGroupBy) IntX(ctx context.Context) int

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

func (*CounterGroupBy) Ints 

func (s *CounterGroupBy) Ints(ctx context.Context) ([]int, error)

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

func (*CounterGroupBy) IntsX 

func (s *CounterGroupBy) IntsX(ctx context.Context) []int

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

func (*CounterGroupBy) Scan 

func (cgb *CounterGroupBy) Scan(ctx context.Context, v any) error

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

func (*CounterGroupBy) ScanX 

func (s *CounterGroupBy) ScanX(ctx context.Context, v any)

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

func (*CounterGroupBy) String 

func (s *CounterGroupBy) String(ctx context.Context) (_ string, err error)

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

func (*CounterGroupBy) StringX 

func (s *CounterGroupBy) StringX(ctx context.Context) string

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

func (*CounterGroupBy) Strings 

func (s *CounterGroupBy) Strings(ctx context.Context) ([]string, error)

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

func (*CounterGroupBy) StringsX 

func (s *CounterGroupBy) StringsX(ctx context.Context) []string

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

type CounterMutation 

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

CounterMutation represents an operation that mutates the Counter nodes in the graph.

func (*CounterMutation) AddField 

func (m *CounterMutation) 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 (*CounterMutation) AddValue 

func (m *CounterMutation) AddValue(i int64)

AddValue adds i to the "value" field.

func (*CounterMutation) AddedEdges 

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

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

func (*CounterMutation) AddedField 

func (m *CounterMutation) 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 (*CounterMutation) AddedFields 

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

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

func (*CounterMutation) AddedIDs 

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

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

func (*CounterMutation) AddedValue 

func (m *CounterMutation) AddedValue() (r int64, exists bool)

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

func (*CounterMutation) ClearEdge 

func (m *CounterMutation) 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 (*CounterMutation) ClearField 

func (m *CounterMutation) 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 (*CounterMutation) ClearedEdges 

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

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

func (*CounterMutation) ClearedFields 

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

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

func (CounterMutation) Client 

func (m CounterMutation) 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 (*CounterMutation) EdgeCleared 

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

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

func (*CounterMutation) Field 

func (m *CounterMutation) 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 (*CounterMutation) FieldCleared 

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

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

func (*CounterMutation) Fields 

func (m *CounterMutation) 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 (*CounterMutation) ID 

func (m *CounterMutation) 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 or after it was returned from the database.

func (*CounterMutation) IDs 

func (m *CounterMutation) IDs(ctx context.Context) ([]string, error)

IDs queries the database and returns the entity ids that match the mutation's predicate. That means, if the mutation is applied within a transaction with an isolation level such as sql.LevelSerializable, the returned ids match the ids of the rows that will be updated or updated by the mutation.

func (*CounterMutation) OldField 

func (m *CounterMutation) 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 (*CounterMutation) OldValue 

func (m *CounterMutation) OldValue(ctx context.Context) (v int64, err error)

OldValue returns the old "value" field's value of the Counter entity. If the Counter 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 (*CounterMutation) Op 

func (m *CounterMutation) Op() Op

Op returns the operation name.

func (*CounterMutation) RemovedEdges 

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

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

func (*CounterMutation) RemovedIDs 

func (m *CounterMutation) 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 (*CounterMutation) ResetEdge 

func (m *CounterMutation) 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 (*CounterMutation) ResetField 

func (m *CounterMutation) 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 (*CounterMutation) ResetValue 

func (m *CounterMutation) ResetValue()

ResetValue resets all changes to the "value" field.

func (*CounterMutation) SetField 

func (m *CounterMutation) 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 (*CounterMutation) SetID 

func (m *CounterMutation) SetID(id string)

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

func (*CounterMutation) SetOp 

func (m *CounterMutation) SetOp(op Op)

SetOp allows setting the mutation operation.

func (*CounterMutation) SetValue 

func (m *CounterMutation) SetValue(i int64)

SetValue sets the "value" field.

func (CounterMutation) Tx 

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

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

func (*CounterMutation) Type 

func (m *CounterMutation) Type() string

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

func (*CounterMutation) Value 

func (m *CounterMutation) Value() (r int64, exists bool)

Value returns the value of the "value" field in the mutation.

func (*CounterMutation) Where 

func (m *CounterMutation) Where(ps ...predicate.Counter)

Where appends a list predicates to the CounterMutation builder.

func (*CounterMutation) WhereP 

func (m *CounterMutation) WhereP(ps ...func(*sql.Selector))

WhereP appends storage-level predicates to the CounterMutation builder. Using this method, users can use type-assertion to append predicates that do not depend on any generated package.

type CounterQuery 

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

CounterQuery is the builder for querying Counter entities.

func (*CounterQuery) Aggregate 

func (cq *CounterQuery) Aggregate(fns ...AggregateFunc) *CounterSelect

Aggregate returns a CounterSelect configured with the given aggregations.

func (*CounterQuery) All 

func (cq *CounterQuery) All(ctx context.Context) ([]*Counter, error)

All executes the query and returns a list of Counters.

func (*CounterQuery) AllX 

func (cq *CounterQuery) AllX(ctx context.Context) []*Counter

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

func (*CounterQuery) Clone 

func (cq *CounterQuery) Clone() *CounterQuery

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

func (*CounterQuery) Count 

func (cq *CounterQuery) Count(ctx context.Context) (int, error)

Count returns the count of the given query.

func (*CounterQuery) CountX 

func (cq *CounterQuery) CountX(ctx context.Context) int

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

func (*CounterQuery) Exist 

func (cq *CounterQuery) Exist(ctx context.Context) (bool, error)

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

func (*CounterQuery) ExistX 

func (cq *CounterQuery) ExistX(ctx context.Context) bool

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

func (*CounterQuery) First 

func (cq *CounterQuery) First(ctx context.Context) (*Counter, error)

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

func (*CounterQuery) FirstID 

func (cq *CounterQuery) FirstID(ctx context.Context) (id string, err error)

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

func (*CounterQuery) FirstIDX 

func (cq *CounterQuery) FirstIDX(ctx context.Context) string

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

func (*CounterQuery) FirstX 

func (cq *CounterQuery) FirstX(ctx context.Context) *Counter

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

func (*CounterQuery) GroupBy 

func (cq *CounterQuery) GroupBy(field string, fields ...string) *CounterGroupBy

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 {
	Value int64 `json:"value,omitempty"`
	Count int `json:"count,omitempty"`
}

client.Counter.Query().
	GroupBy(counter.FieldValue).
	Aggregate(ent.Count()).
	Scan(ctx, &v)

func (*CounterQuery) IDs 

func (cq *CounterQuery) IDs(ctx context.Context) (ids []string, err error)

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

func (*CounterQuery) IDsX 

func (cq *CounterQuery) IDsX(ctx context.Context) []string

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

func (*CounterQuery) Limit 

func (cq *CounterQuery) Limit(limit int) *CounterQuery

Limit the number of records to be returned by this query.

func (*CounterQuery) Offset 

func (cq *CounterQuery) Offset(offset int) *CounterQuery

Offset to start from.

func (*CounterQuery) Only 

func (cq *CounterQuery) Only(ctx context.Context) (*Counter, error)

Only returns a single Counter entity found by the query, ensuring it only returns one. Returns a *NotSingularError when more than one Counter entity is found. Returns a *NotFoundError when no Counter entities are found.

func (*CounterQuery) OnlyID 

func (cq *CounterQuery) OnlyID(ctx context.Context) (id string, err error)

OnlyID is like Only, but returns the only Counter ID in the query. Returns a *NotSingularError when more than one Counter ID is found. Returns a *NotFoundError when no entities are found.

func (*CounterQuery) OnlyIDX 

func (cq *CounterQuery) OnlyIDX(ctx context.Context) string

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

func (*CounterQuery) OnlyX 

func (cq *CounterQuery) OnlyX(ctx context.Context) *Counter

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

func (*CounterQuery) Order 

func (cq *CounterQuery) Order(o ...counter.OrderOption) *CounterQuery

Order specifies how the records should be ordered.

func (*CounterQuery) Select 

func (cq *CounterQuery) Select(fields ...string) *CounterSelect

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 {
	Value int64 `json:"value,omitempty"`
}

client.Counter.Query().
	Select(counter.FieldValue).
	Scan(ctx, &v)

func (*CounterQuery) Unique 

func (cq *CounterQuery) Unique(unique bool) *CounterQuery

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 (*CounterQuery) Where 

func (cq *CounterQuery) Where(ps ...predicate.Counter) *CounterQuery

Where adds a new predicate for the CounterQuery builder.

type CounterSelect 

type CounterSelect struct {
	*CounterQuery
	// contains filtered or unexported fields
}

CounterSelect is the builder for selecting fields of Counter entities.

func (*CounterSelect) Aggregate 

func (cs *CounterSelect) Aggregate(fns ...AggregateFunc) *CounterSelect

Aggregate adds the given aggregation functions to the selector query.

func (*CounterSelect) Bool 

func (s *CounterSelect) Bool(ctx context.Context) (_ bool, err error)

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

func (*CounterSelect) BoolX 

func (s *CounterSelect) BoolX(ctx context.Context) bool

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

func (*CounterSelect) Bools 

func (s *CounterSelect) Bools(ctx context.Context) ([]bool, error)

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

func (*CounterSelect) BoolsX 

func (s *CounterSelect) BoolsX(ctx context.Context) []bool

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

func (*CounterSelect) Float64 

func (s *CounterSelect) Float64(ctx context.Context) (_ float64, err error)

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

func (*CounterSelect) Float64X 

func (s *CounterSelect) Float64X(ctx context.Context) float64

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

func (*CounterSelect) Float64s 

func (s *CounterSelect) Float64s(ctx context.Context) ([]float64, error)

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

func (*CounterSelect) Float64sX 

func (s *CounterSelect) Float64sX(ctx context.Context) []float64

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

func (*CounterSelect) Int 

func (s *CounterSelect) Int(ctx context.Context) (_ int, err error)

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

func (*CounterSelect) IntX 

func (s *CounterSelect) IntX(ctx context.Context) int

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

func (*CounterSelect) Ints 

func (s *CounterSelect) Ints(ctx context.Context) ([]int, error)

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

func (*CounterSelect) IntsX 

func (s *CounterSelect) IntsX(ctx context.Context) []int

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

func (*CounterSelect) Scan 

func (cs *CounterSelect) Scan(ctx context.Context, v any) error

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

func (*CounterSelect) ScanX 

func (s *CounterSelect) ScanX(ctx context.Context, v any)

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

func (*CounterSelect) String 

func (s *CounterSelect) String(ctx context.Context) (_ string, err error)

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

func (*CounterSelect) StringX 

func (s *CounterSelect) StringX(ctx context.Context) string

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

func (*CounterSelect) Strings 

func (s *CounterSelect) Strings(ctx context.Context) ([]string, error)

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

func (*CounterSelect) StringsX 

func (s *CounterSelect) StringsX(ctx context.Context) []string

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

type CounterUpdate 

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

CounterUpdate is the builder for updating Counter entities.

func (*CounterUpdate) AddValue 

func (cu *CounterUpdate) AddValue(i int64) *CounterUpdate

AddValue adds i to the "value" field.

func (*CounterUpdate) Exec 

func (cu *CounterUpdate) Exec(ctx context.Context) error

Exec executes the query.

func (*CounterUpdate) ExecX 

func (cu *CounterUpdate) ExecX(ctx context.Context)

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

func (*CounterUpdate) Mutation 

func (cu *CounterUpdate) Mutation() *CounterMutation

Mutation returns the CounterMutation object of the builder.

func (*CounterUpdate) Save 

func (cu *CounterUpdate) Save(ctx context.Context) (int, error)

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

func (*CounterUpdate) SaveX 

func (cu *CounterUpdate) SaveX(ctx context.Context) int

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

func (*CounterUpdate) SetNillableValue 

func (cu *CounterUpdate) SetNillableValue(i *int64) *CounterUpdate

SetNillableValue sets the "value" field if the given value is not nil.

func (*CounterUpdate) SetValue 

func (cu *CounterUpdate) SetValue(i int64) *CounterUpdate

SetValue sets the "value" field.

func (*CounterUpdate) Where 

func (cu *CounterUpdate) Where(ps ...predicate.Counter) *CounterUpdate

Where appends a list predicates to the CounterUpdate builder.

type CounterUpdateOne 

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

CounterUpdateOne is the builder for updating a single Counter entity.

func (*CounterUpdateOne) AddValue 

func (cuo *CounterUpdateOne) AddValue(i int64) *CounterUpdateOne

AddValue adds i to the "value" field.

func (*CounterUpdateOne) Exec 

func (cuo *CounterUpdateOne) Exec(ctx context.Context) error

Exec executes the query on the entity.

func (*CounterUpdateOne) ExecX 

func (cuo *CounterUpdateOne) ExecX(ctx context.Context)

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

func (*CounterUpdateOne) Mutation 

func (cuo *CounterUpdateOne) Mutation() *CounterMutation

Mutation returns the CounterMutation object of the builder.

func (*CounterUpdateOne) Save 

func (cuo *CounterUpdateOne) Save(ctx context.Context) (*Counter, error)

Save executes the query and returns the updated Counter entity.

func (*CounterUpdateOne) SaveX 

func (cuo *CounterUpdateOne) SaveX(ctx context.Context) *Counter

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

func (*CounterUpdateOne) Select 

func (cuo *CounterUpdateOne) Select(field string, fields ...string) *CounterUpdateOne

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

func (*CounterUpdateOne) SetNillableValue 

func (cuo *CounterUpdateOne) SetNillableValue(i *int64) *CounterUpdateOne

SetNillableValue sets the "value" field if the given value is not nil.

func (*CounterUpdateOne) SetValue 

func (cuo *CounterUpdateOne) SetValue(i int64) *CounterUpdateOne

SetValue sets the "value" field.

func (*CounterUpdateOne) Where 

func (cuo *CounterUpdateOne) Where(ps ...predicate.Counter) *CounterUpdateOne

Where appends a list predicates to the CounterUpdate builder.

type Counters 

type Counters []*Counter

Counters is a parsable slice of Counter.

type Hook 

type Hook = ent.Hook

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

type InterceptFunc 

type InterceptFunc = ent.InterceptFunc

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

type Interceptor 

type Interceptor = ent.Interceptor

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(...any)) Option

Log sets the logging function for debug mode.

type OrderFunc 

type OrderFunc func(*sql.Selector)

OrderFunc applies an ordering on the sql selector. Deprecated: Use Asc/Desc functions or the package builders instead.

type Policy 

type Policy = ent.Policy

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

type Querier 

type Querier = ent.Querier

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

type QuerierFunc 

type QuerierFunc = ent.QuerierFunc

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 QueryContext 

type QueryContext = ent.QueryContext

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(ctx 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 Rollback method.

type TraverseFunc 

type TraverseFunc = ent.TraverseFunc

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

type Traverser 

type Traverser = ent.Traverser

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

type Tx 

type Tx struct {

	// Counter is the client for interacting with the Counter builders.
	Counter *CounterClient
	// 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 or edge 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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