ent

package
v0.1.2 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Feb 14, 2020 License: Apache-2.0 Imports: 16 Imported by: 0

Documentation

Index

Examples

Constants

This section is empty.

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 MaskNotFound 

func MaskNotFound(err error) error

MaskNotFound masks nor found error.

func NewContext 

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

NewContext returns a new context with the given Client attached.

Types

type Aggregate 

type Aggregate func(*sql.Selector) string

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

func As 

func As(fn Aggregate, end string) Aggregate

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() Aggregate

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

func Max 

func Max(field string) Aggregate

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

func Mean 

func Mean(field string) Aggregate

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

func Min 

func Min(field string) Aggregate

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

func Sum 

func Sum(field string) Aggregate

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

type Cities 

type Cities []*City

Cities is a parsable slice of City.

type City 

type City struct {

	// ID of the ent.
	ID int `json:"id,omitempty"`
	// Name holds the value of the "name" field.
	Name string `json:"name,omitempty"`
	// Edges holds the relations/edges for other nodes in the graph.
	// The values are being populated by the CityQuery when eager-loading is set.
	Edges CityEdges `json:"edges"`
	// contains filtered or unexported fields
}

City is the model entity for the City schema.

Example 
if dsn == "" {
	return
}
ctx := context.Background()
drv, err := sql.Open("mysql", dsn)
if err != nil {
	log.Fatalf("failed creating database client: %v", err)
}
defer drv.Close()
client := NewClient(Driver(drv))
// creating vertices for the city's edges.
s0 := client.Street.
	Create().
	SetName("string").
	SaveX(ctx)
log.Println("street created:", s0)

// create city vertex with its edges.
c := client.City.
	Create().
	SetName("string").
	AddStreets(s0).
	SaveX(ctx)
log.Println("city created:", c)

// query edges.
s0, err = c.QueryStreets().First(ctx)
if err != nil {
	log.Fatalf("failed querying streets: %v", err)
}
log.Println("streets found:", s0)

Output:

func (*City) QueryStreets 

func (c *City) QueryStreets() *StreetQuery

QueryStreets queries the streets edge of the City.

func (*City) String 

func (c *City) String() string

String implements the fmt.Stringer.

func (*City) Unwrap 

func (c *City) Unwrap() *City

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

func (*City) Update 

func (c *City) Update() *CityUpdateOne

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

type CityClient 

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

CityClient is a client for the City schema.

func NewCityClient 

func NewCityClient(c config) *CityClient

NewCityClient returns a client for the City from the given config.

func (*CityClient) Create 

func (c *CityClient) Create() *CityCreate

Create returns a create builder for City.

func (*CityClient) Delete 

func (c *CityClient) Delete() *CityDelete

Delete returns a delete builder for City.

func (*CityClient) DeleteOne 

func (c *CityClient) DeleteOne(ci *City) *CityDeleteOne

DeleteOne returns a delete builder for the given entity.

func (*CityClient) DeleteOneID 

func (c *CityClient) DeleteOneID(id int) *CityDeleteOne

DeleteOneID returns a delete builder for the given id.

func (*CityClient) Get 

func (c *CityClient) Get(ctx context.Context, id int) (*City, error)

Get returns a City entity by its id.

func (*CityClient) GetX 

func (c *CityClient) GetX(ctx context.Context, id int) *City

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

func (*CityClient) Query 

func (c *CityClient) Query() *CityQuery

Create returns a query builder for City.

func (*CityClient) QueryStreets 

func (c *CityClient) QueryStreets(ci *City) *StreetQuery

QueryStreets queries the streets edge of a City.

func (*CityClient) Update 

func (c *CityClient) Update() *CityUpdate

Update returns an update builder for City.

func (*CityClient) UpdateOne 

func (c *CityClient) UpdateOne(ci *City) *CityUpdateOne

UpdateOne returns an update builder for the given entity.

func (*CityClient) UpdateOneID 

func (c *CityClient) UpdateOneID(id int) *CityUpdateOne

UpdateOneID returns an update builder for the given id.

type CityCreate 

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

CityCreate is the builder for creating a City entity.

func (*CityCreate) AddStreetIDs 

func (cc *CityCreate) AddStreetIDs(ids ...int) *CityCreate

AddStreetIDs adds the streets edge to Street by ids.

func (*CityCreate) AddStreets 

func (cc *CityCreate) AddStreets(s ...*Street) *CityCreate

AddStreets adds the streets edges to Street.

func (*CityCreate) Save 

func (cc *CityCreate) Save(ctx context.Context) (*City, error)

Save creates the City in the database.

func (*CityCreate) SaveX 

func (cc *CityCreate) SaveX(ctx context.Context) *City

SaveX calls Save and panics if Save returns an error.

func (*CityCreate) SetName 

func (cc *CityCreate) SetName(s string) *CityCreate

SetName sets the name field.

type CityDelete 

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

CityDelete is the builder for deleting a City entity.

func (*CityDelete) Exec 

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

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

func (*CityDelete) ExecX 

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

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

func (*CityDelete) Where 

func (cd *CityDelete) Where(ps ...predicate.City) *CityDelete

Where adds a new predicate to the delete builder.

type CityDeleteOne 

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

CityDeleteOne is the builder for deleting a single City entity.

func (*CityDeleteOne) Exec 

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

Exec executes the deletion query.

func (*CityDeleteOne) ExecX 

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

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

type CityEdges 

type CityEdges struct {
	// Streets holds the value of the streets edge.
	Streets []*Street
	// contains filtered or unexported fields
}

CityEdges holds the relations/edges for other nodes in the graph.

func (CityEdges) StreetsOrErr 

func (e CityEdges) StreetsOrErr() ([]*Street, error)

StreetsOrErr returns the Streets value or an error if the edge was not loaded in eager-loading.

type CityGroupBy 

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

CityGroupBy is the builder for group-by City entities.

func (*CityGroupBy) Aggregate 

func (cgb *CityGroupBy) Aggregate(fns ...Aggregate) *CityGroupBy

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

func (*CityGroupBy) Bools 

func (cgb *CityGroupBy) Bools(ctx context.Context) ([]bool, error)

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

func (*CityGroupBy) BoolsX 

func (cgb *CityGroupBy) BoolsX(ctx context.Context) []bool

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

func (*CityGroupBy) Float64s 

func (cgb *CityGroupBy) Float64s(ctx context.Context) ([]float64, error)

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

func (*CityGroupBy) Float64sX 

func (cgb *CityGroupBy) Float64sX(ctx context.Context) []float64

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

func (*CityGroupBy) Ints 

func (cgb *CityGroupBy) Ints(ctx context.Context) ([]int, error)

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

func (*CityGroupBy) IntsX 

func (cgb *CityGroupBy) IntsX(ctx context.Context) []int

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

func (*CityGroupBy) Scan 

func (cgb *CityGroupBy) Scan(ctx context.Context, v interface{}) error

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

func (*CityGroupBy) ScanX 

func (cgb *CityGroupBy) ScanX(ctx context.Context, v interface{})

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

func (*CityGroupBy) Strings 

func (cgb *CityGroupBy) Strings(ctx context.Context) ([]string, error)

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

func (*CityGroupBy) StringsX 

func (cgb *CityGroupBy) StringsX(ctx context.Context) []string

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

type CityQuery 

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

CityQuery is the builder for querying City entities.

func (*CityQuery) All 

func (cq *CityQuery) All(ctx context.Context) ([]*City, error)

All executes the query and returns a list of Cities.

func (*CityQuery) AllX 

func (cq *CityQuery) AllX(ctx context.Context) []*City

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

func (*CityQuery) Clone 

func (cq *CityQuery) Clone() *CityQuery

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

func (*CityQuery) Count 

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

Count returns the count of the given query.

func (*CityQuery) CountX 

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

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

func (*CityQuery) Exist 

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

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

func (*CityQuery) ExistX 

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

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

func (*CityQuery) First 

func (cq *CityQuery) First(ctx context.Context) (*City, error)

First returns the first City entity in the query. Returns *NotFoundError when no city was found.

func (*CityQuery) FirstID 

func (cq *CityQuery) FirstID(ctx context.Context) (id int, err error)

FirstID returns the first City id in the query. Returns *NotFoundError when no id was found.

func (*CityQuery) FirstX 

func (cq *CityQuery) FirstX(ctx context.Context) *City

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

func (*CityQuery) FirstXID 

func (cq *CityQuery) FirstXID(ctx context.Context) int

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

func (*CityQuery) GroupBy 

func (cq *CityQuery) GroupBy(field string, fields ...string) *CityGroupBy

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

Example: 

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

client.City.Query().
	GroupBy(city.FieldName).
	Aggregate(ent.Count()).
	Scan(ctx, &v)

func (*CityQuery) IDs 

func (cq *CityQuery) IDs(ctx context.Context) ([]int, error)

IDs executes the query and returns a list of City ids.

func (*CityQuery) IDsX 

func (cq *CityQuery) IDsX(ctx context.Context) []int

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

func (*CityQuery) Limit 

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

Limit adds a limit step to the query.

func (*CityQuery) Offset 

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

Offset adds an offset step to the query.

func (*CityQuery) Only 

func (cq *CityQuery) Only(ctx context.Context) (*City, error)

Only returns the only City entity in the query, returns an error if not exactly one entity was returned.

func (*CityQuery) OnlyID 

func (cq *CityQuery) OnlyID(ctx context.Context) (id int, err error)

OnlyID returns the only City id in the query, returns an error if not exactly one id was returned.

func (*CityQuery) OnlyX 

func (cq *CityQuery) OnlyX(ctx context.Context) *City

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

func (*CityQuery) OnlyXID 

func (cq *CityQuery) OnlyXID(ctx context.Context) int

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

func (*CityQuery) Order 

func (cq *CityQuery) Order(o ...Order) *CityQuery

Order adds an order step to the query.

func (*CityQuery) QueryStreets 

func (cq *CityQuery) QueryStreets() *StreetQuery

QueryStreets chains the current query on the streets edge.

func (*CityQuery) Select 

func (cq *CityQuery) Select(field string, fields ...string) *CitySelect

Select one or more fields from the given query.

Example: 

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

client.City.Query().
	Select(city.FieldName).
	Scan(ctx, &v)

func (*CityQuery) Where 

func (cq *CityQuery) Where(ps ...predicate.City) *CityQuery

Where adds a new predicate for the builder.

func (*CityQuery) WithStreets 

func (cq *CityQuery) WithStreets(opts ...func(*StreetQuery)) *CityQuery
WithStreets tells the query-builder to eager-loads the nodes that are connected to

the "streets" edge. The optional arguments used to configure the query builder of the edge.

type CitySelect 

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

CitySelect is the builder for select fields of City entities.

func (*CitySelect) Bools 

func (cs *CitySelect) Bools(ctx context.Context) ([]bool, error)

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

func (*CitySelect) BoolsX 

func (cs *CitySelect) BoolsX(ctx context.Context) []bool

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

func (*CitySelect) Float64s 

func (cs *CitySelect) Float64s(ctx context.Context) ([]float64, error)

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

func (*CitySelect) Float64sX 

func (cs *CitySelect) Float64sX(ctx context.Context) []float64

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

func (*CitySelect) Ints 

func (cs *CitySelect) Ints(ctx context.Context) ([]int, error)

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

func (*CitySelect) IntsX 

func (cs *CitySelect) IntsX(ctx context.Context) []int

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

func (*CitySelect) Scan 

func (cs *CitySelect) Scan(ctx context.Context, v interface{}) error

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

func (*CitySelect) ScanX 

func (cs *CitySelect) ScanX(ctx context.Context, v interface{})

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

func (*CitySelect) Strings 

func (cs *CitySelect) Strings(ctx context.Context) ([]string, error)

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

func (*CitySelect) StringsX 

func (cs *CitySelect) StringsX(ctx context.Context) []string

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

type CityUpdate 

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

CityUpdate is the builder for updating City entities.

func (*CityUpdate) AddStreetIDs 

func (cu *CityUpdate) AddStreetIDs(ids ...int) *CityUpdate

AddStreetIDs adds the streets edge to Street by ids.

func (*CityUpdate) AddStreets 

func (cu *CityUpdate) AddStreets(s ...*Street) *CityUpdate

AddStreets adds the streets edges to Street.

func (*CityUpdate) Exec 

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

Exec executes the query.

func (*CityUpdate) ExecX 

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

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

func (*CityUpdate) RemoveStreetIDs 

func (cu *CityUpdate) RemoveStreetIDs(ids ...int) *CityUpdate

RemoveStreetIDs removes the streets edge to Street by ids.

func (*CityUpdate) RemoveStreets 

func (cu *CityUpdate) RemoveStreets(s ...*Street) *CityUpdate

RemoveStreets removes streets edges to Street.

func (*CityUpdate) Save 

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

Save executes the query and returns the number of rows/vertices matched by this operation.

func (*CityUpdate) SaveX 

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

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

func (*CityUpdate) SetName 

func (cu *CityUpdate) SetName(s string) *CityUpdate

SetName sets the name field.

func (*CityUpdate) Where 

func (cu *CityUpdate) Where(ps ...predicate.City) *CityUpdate

Where adds a new predicate for the builder.

type CityUpdateOne 

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

CityUpdateOne is the builder for updating a single City entity.

func (*CityUpdateOne) AddStreetIDs 

func (cuo *CityUpdateOne) AddStreetIDs(ids ...int) *CityUpdateOne

AddStreetIDs adds the streets edge to Street by ids.

func (*CityUpdateOne) AddStreets 

func (cuo *CityUpdateOne) AddStreets(s ...*Street) *CityUpdateOne

AddStreets adds the streets edges to Street.

func (*CityUpdateOne) Exec 

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

Exec executes the query on the entity.

func (*CityUpdateOne) ExecX 

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

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

func (*CityUpdateOne) RemoveStreetIDs 

func (cuo *CityUpdateOne) RemoveStreetIDs(ids ...int) *CityUpdateOne

RemoveStreetIDs removes the streets edge to Street by ids.

func (*CityUpdateOne) RemoveStreets 

func (cuo *CityUpdateOne) RemoveStreets(s ...*Street) *CityUpdateOne

RemoveStreets removes streets edges to Street.

func (*CityUpdateOne) Save 

func (cuo *CityUpdateOne) Save(ctx context.Context) (*City, error)

Save executes the query and returns the updated entity.

func (*CityUpdateOne) SaveX 

func (cuo *CityUpdateOne) SaveX(ctx context.Context) *City

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

func (*CityUpdateOne) SetName 

func (cuo *CityUpdateOne) SetName(s string) *CityUpdateOne

SetName sets the name field.

type Client 

type Client struct {

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

Client is the client that holds all ent builders.

func FromContext 

func FromContext(ctx context.Context) *Client

FromContext returns the Client stored in 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 connection to the database specified by the driver name and a driver-specific data source name, and returns a new client attached to it. Optional parameters can be added for configuring the client.

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().
	City.
	Query().
	Count(ctx)

func (*Client) Tx 

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

Tx returns a new transactional client.

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 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 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 func(*sql.Selector)

Order applies an ordering on either graph traversal or sql selector.

func Asc 

func Asc(fields ...string) Order

Asc applies the given fields in ASC order.

func Desc 

func Desc(fields ...string) Order

Desc applies the given fields in DESC order.

type Street 

type Street struct {

	// ID of the ent.
	ID int `json:"id,omitempty"`
	// Name holds the value of the "name" field.
	Name string `json:"name,omitempty"`
	// Edges holds the relations/edges for other nodes in the graph.
	// The values are being populated by the StreetQuery when eager-loading is set.
	Edges StreetEdges `json:"edges"`
	// contains filtered or unexported fields
}

Street is the model entity for the Street schema.

Example 
if dsn == "" {
	return
}
ctx := context.Background()
drv, err := sql.Open("mysql", dsn)
if err != nil {
	log.Fatalf("failed creating database client: %v", err)
}
defer drv.Close()
client := NewClient(Driver(drv))
// creating vertices for the street's edges.

// create street vertex with its edges.
s := client.Street.
	Create().
	SetName("string").
	SaveX(ctx)
log.Println("street created:", s)

// query edges.

Output:

func (*Street) QueryCity 

func (s *Street) QueryCity() *CityQuery

QueryCity queries the city edge of the Street.

func (*Street) String 

func (s *Street) String() string

String implements the fmt.Stringer.

func (*Street) Unwrap 

func (s *Street) Unwrap() *Street

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

func (*Street) Update 

func (s *Street) Update() *StreetUpdateOne

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

type StreetClient 

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

StreetClient is a client for the Street schema.

func NewStreetClient 

func NewStreetClient(c config) *StreetClient

NewStreetClient returns a client for the Street from the given config.

func (*StreetClient) Create 

func (c *StreetClient) Create() *StreetCreate

Create returns a create builder for Street.

func (*StreetClient) Delete 

func (c *StreetClient) Delete() *StreetDelete

Delete returns a delete builder for Street.

func (*StreetClient) DeleteOne 

func (c *StreetClient) DeleteOne(s *Street) *StreetDeleteOne

DeleteOne returns a delete builder for the given entity.

func (*StreetClient) DeleteOneID 

func (c *StreetClient) DeleteOneID(id int) *StreetDeleteOne

DeleteOneID returns a delete builder for the given id.

func (*StreetClient) Get 

func (c *StreetClient) Get(ctx context.Context, id int) (*Street, error)

Get returns a Street entity by its id.

func (*StreetClient) GetX 

func (c *StreetClient) GetX(ctx context.Context, id int) *Street

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

func (*StreetClient) Query 

func (c *StreetClient) Query() *StreetQuery

Create returns a query builder for Street.

func (*StreetClient) QueryCity 

func (c *StreetClient) QueryCity(s *Street) *CityQuery

QueryCity queries the city edge of a Street.

func (*StreetClient) Update 

func (c *StreetClient) Update() *StreetUpdate

Update returns an update builder for Street.

func (*StreetClient) UpdateOne 

func (c *StreetClient) UpdateOne(s *Street) *StreetUpdateOne

UpdateOne returns an update builder for the given entity.

func (*StreetClient) UpdateOneID 

func (c *StreetClient) UpdateOneID(id int) *StreetUpdateOne

UpdateOneID returns an update builder for the given id.

type StreetCreate 

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

StreetCreate is the builder for creating a Street entity.

func (*StreetCreate) Save 

func (sc *StreetCreate) Save(ctx context.Context) (*Street, error)

Save creates the Street in the database.

func (*StreetCreate) SaveX 

func (sc *StreetCreate) SaveX(ctx context.Context) *Street

SaveX calls Save and panics if Save returns an error.

func (*StreetCreate) SetCity 

func (sc *StreetCreate) SetCity(c *City) *StreetCreate

SetCity sets the city edge to City.

func (*StreetCreate) SetCityID 

func (sc *StreetCreate) SetCityID(id int) *StreetCreate

SetCityID sets the city edge to City by id.

func (*StreetCreate) SetName 

func (sc *StreetCreate) SetName(s string) *StreetCreate

SetName sets the name field.

func (*StreetCreate) SetNillableCityID 

func (sc *StreetCreate) SetNillableCityID(id *int) *StreetCreate

SetNillableCityID sets the city edge to City by id if the given value is not nil.

type StreetDelete 

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

StreetDelete is the builder for deleting a Street entity.

func (*StreetDelete) Exec 

func (sd *StreetDelete) Exec(ctx context.Context) (int, error)

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

func (*StreetDelete) ExecX 

func (sd *StreetDelete) ExecX(ctx context.Context) int

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

func (*StreetDelete) Where 

func (sd *StreetDelete) Where(ps ...predicate.Street) *StreetDelete

Where adds a new predicate to the delete builder.

type StreetDeleteOne 

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

StreetDeleteOne is the builder for deleting a single Street entity.

func (*StreetDeleteOne) Exec 

func (sdo *StreetDeleteOne) Exec(ctx context.Context) error

Exec executes the deletion query.

func (*StreetDeleteOne) ExecX 

func (sdo *StreetDeleteOne) ExecX(ctx context.Context)

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

type StreetEdges 

type StreetEdges struct {
	// City holds the value of the city edge.
	City *City
	// contains filtered or unexported fields
}

StreetEdges holds the relations/edges for other nodes in the graph.

func (StreetEdges) CityOrErr 

func (e StreetEdges) CityOrErr() (*City, error)

CityOrErr returns the City value or an error if the edge was not loaded in eager-loading, or loaded but was not found.

type StreetGroupBy 

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

StreetGroupBy is the builder for group-by Street entities.

func (*StreetGroupBy) Aggregate 

func (sgb *StreetGroupBy) Aggregate(fns ...Aggregate) *StreetGroupBy

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

func (*StreetGroupBy) Bools 

func (sgb *StreetGroupBy) Bools(ctx context.Context) ([]bool, error)

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

func (*StreetGroupBy) BoolsX 

func (sgb *StreetGroupBy) BoolsX(ctx context.Context) []bool

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

func (*StreetGroupBy) Float64s 

func (sgb *StreetGroupBy) Float64s(ctx context.Context) ([]float64, error)

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

func (*StreetGroupBy) Float64sX 

func (sgb *StreetGroupBy) Float64sX(ctx context.Context) []float64

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

func (*StreetGroupBy) Ints 

func (sgb *StreetGroupBy) Ints(ctx context.Context) ([]int, error)

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

func (*StreetGroupBy) IntsX 

func (sgb *StreetGroupBy) IntsX(ctx context.Context) []int

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

func (*StreetGroupBy) Scan 

func (sgb *StreetGroupBy) Scan(ctx context.Context, v interface{}) error

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

func (*StreetGroupBy) ScanX 

func (sgb *StreetGroupBy) ScanX(ctx context.Context, v interface{})

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

func (*StreetGroupBy) Strings 

func (sgb *StreetGroupBy) Strings(ctx context.Context) ([]string, error)

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

func (*StreetGroupBy) StringsX 

func (sgb *StreetGroupBy) StringsX(ctx context.Context) []string

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

type StreetQuery 

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

StreetQuery is the builder for querying Street entities.

func (*StreetQuery) All 

func (sq *StreetQuery) All(ctx context.Context) ([]*Street, error)

All executes the query and returns a list of Streets.

func (*StreetQuery) AllX 

func (sq *StreetQuery) AllX(ctx context.Context) []*Street

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

func (*StreetQuery) Clone 

func (sq *StreetQuery) Clone() *StreetQuery

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

func (*StreetQuery) Count 

func (sq *StreetQuery) Count(ctx context.Context) (int, error)

Count returns the count of the given query.

func (*StreetQuery) CountX 

func (sq *StreetQuery) CountX(ctx context.Context) int

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

func (*StreetQuery) Exist 

func (sq *StreetQuery) Exist(ctx context.Context) (bool, error)

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

func (*StreetQuery) ExistX 

func (sq *StreetQuery) ExistX(ctx context.Context) bool

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

func (*StreetQuery) First 

func (sq *StreetQuery) First(ctx context.Context) (*Street, error)

First returns the first Street entity in the query. Returns *NotFoundError when no street was found.

func (*StreetQuery) FirstID 

func (sq *StreetQuery) FirstID(ctx context.Context) (id int, err error)

FirstID returns the first Street id in the query. Returns *NotFoundError when no id was found.

func (*StreetQuery) FirstX 

func (sq *StreetQuery) FirstX(ctx context.Context) *Street

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

func (*StreetQuery) FirstXID 

func (sq *StreetQuery) FirstXID(ctx context.Context) int

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

func (*StreetQuery) GroupBy 

func (sq *StreetQuery) GroupBy(field string, fields ...string) *StreetGroupBy

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

Example: 

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

client.Street.Query().
	GroupBy(street.FieldName).
	Aggregate(ent.Count()).
	Scan(ctx, &v)

func (*StreetQuery) IDs 

func (sq *StreetQuery) IDs(ctx context.Context) ([]int, error)

IDs executes the query and returns a list of Street ids.

func (*StreetQuery) IDsX 

func (sq *StreetQuery) IDsX(ctx context.Context) []int

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

func (*StreetQuery) Limit 

func (sq *StreetQuery) Limit(limit int) *StreetQuery

Limit adds a limit step to the query.

func (*StreetQuery) Offset 

func (sq *StreetQuery) Offset(offset int) *StreetQuery

Offset adds an offset step to the query.

func (*StreetQuery) Only 

func (sq *StreetQuery) Only(ctx context.Context) (*Street, error)

Only returns the only Street entity in the query, returns an error if not exactly one entity was returned.

func (*StreetQuery) OnlyID 

func (sq *StreetQuery) OnlyID(ctx context.Context) (id int, err error)

OnlyID returns the only Street id in the query, returns an error if not exactly one id was returned.

func (*StreetQuery) OnlyX 

func (sq *StreetQuery) OnlyX(ctx context.Context) *Street

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

func (*StreetQuery) OnlyXID 

func (sq *StreetQuery) OnlyXID(ctx context.Context) int

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

func (*StreetQuery) Order 

func (sq *StreetQuery) Order(o ...Order) *StreetQuery

Order adds an order step to the query.

func (*StreetQuery) QueryCity 

func (sq *StreetQuery) QueryCity() *CityQuery

QueryCity chains the current query on the city edge.

func (*StreetQuery) Select 

func (sq *StreetQuery) Select(field string, fields ...string) *StreetSelect

Select one or more fields from the given query.

Example: 

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

client.Street.Query().
	Select(street.FieldName).
	Scan(ctx, &v)

func (*StreetQuery) Where 

func (sq *StreetQuery) Where(ps ...predicate.Street) *StreetQuery

Where adds a new predicate for the builder.

func (*StreetQuery) WithCity 

func (sq *StreetQuery) WithCity(opts ...func(*CityQuery)) *StreetQuery
WithCity tells the query-builder to eager-loads the nodes that are connected to

the "city" edge. The optional arguments used to configure the query builder of the edge.

type StreetSelect 

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

StreetSelect is the builder for select fields of Street entities.

func (*StreetSelect) Bools 

func (ss *StreetSelect) Bools(ctx context.Context) ([]bool, error)

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

func (*StreetSelect) BoolsX 

func (ss *StreetSelect) BoolsX(ctx context.Context) []bool

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

func (*StreetSelect) Float64s 

func (ss *StreetSelect) Float64s(ctx context.Context) ([]float64, error)

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

func (*StreetSelect) Float64sX 

func (ss *StreetSelect) Float64sX(ctx context.Context) []float64

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

func (*StreetSelect) Ints 

func (ss *StreetSelect) Ints(ctx context.Context) ([]int, error)

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

func (*StreetSelect) IntsX 

func (ss *StreetSelect) IntsX(ctx context.Context) []int

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

func (*StreetSelect) Scan 

func (ss *StreetSelect) Scan(ctx context.Context, v interface{}) error

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

func (*StreetSelect) ScanX 

func (ss *StreetSelect) ScanX(ctx context.Context, v interface{})

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

func (*StreetSelect) Strings 

func (ss *StreetSelect) Strings(ctx context.Context) ([]string, error)

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

func (*StreetSelect) StringsX 

func (ss *StreetSelect) StringsX(ctx context.Context) []string

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

type StreetUpdate 

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

StreetUpdate is the builder for updating Street entities.

func (*StreetUpdate) ClearCity 

func (su *StreetUpdate) ClearCity() *StreetUpdate

ClearCity clears the city edge to City.

func (*StreetUpdate) Exec 

func (su *StreetUpdate) Exec(ctx context.Context) error

Exec executes the query.

func (*StreetUpdate) ExecX 

func (su *StreetUpdate) ExecX(ctx context.Context)

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

func (*StreetUpdate) Save 

func (su *StreetUpdate) Save(ctx context.Context) (int, error)

Save executes the query and returns the number of rows/vertices matched by this operation.

func (*StreetUpdate) SaveX 

func (su *StreetUpdate) SaveX(ctx context.Context) int

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

func (*StreetUpdate) SetCity 

func (su *StreetUpdate) SetCity(c *City) *StreetUpdate

SetCity sets the city edge to City.

func (*StreetUpdate) SetCityID 

func (su *StreetUpdate) SetCityID(id int) *StreetUpdate

SetCityID sets the city edge to City by id.

func (*StreetUpdate) SetName 

func (su *StreetUpdate) SetName(s string) *StreetUpdate

SetName sets the name field.

func (*StreetUpdate) SetNillableCityID 

func (su *StreetUpdate) SetNillableCityID(id *int) *StreetUpdate

SetNillableCityID sets the city edge to City by id if the given value is not nil.

func (*StreetUpdate) Where 

func (su *StreetUpdate) Where(ps ...predicate.Street) *StreetUpdate

Where adds a new predicate for the builder.

type StreetUpdateOne 

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

StreetUpdateOne is the builder for updating a single Street entity.

func (*StreetUpdateOne) ClearCity 

func (suo *StreetUpdateOne) ClearCity() *StreetUpdateOne

ClearCity clears the city edge to City.

func (*StreetUpdateOne) Exec 

func (suo *StreetUpdateOne) Exec(ctx context.Context) error

Exec executes the query on the entity.

func (*StreetUpdateOne) ExecX 

func (suo *StreetUpdateOne) ExecX(ctx context.Context)

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

func (*StreetUpdateOne) Save 

func (suo *StreetUpdateOne) Save(ctx context.Context) (*Street, error)

Save executes the query and returns the updated entity.

func (*StreetUpdateOne) SaveX 

func (suo *StreetUpdateOne) SaveX(ctx context.Context) *Street

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

func (*StreetUpdateOne) SetCity 

func (suo *StreetUpdateOne) SetCity(c *City) *StreetUpdateOne

SetCity sets the city edge to City.

func (*StreetUpdateOne) SetCityID 

func (suo *StreetUpdateOne) SetCityID(id int) *StreetUpdateOne

SetCityID sets the city edge to City by id.

func (*StreetUpdateOne) SetName 

func (suo *StreetUpdateOne) SetName(s string) *StreetUpdateOne

SetName sets the name field.

func (*StreetUpdateOne) SetNillableCityID 

func (suo *StreetUpdateOne) SetNillableCityID(id *int) *StreetUpdateOne

SetNillableCityID sets the city edge to City by id if the given value is not nil.

type Streets 

type Streets []*Street

Streets is a parsable slice of Street.

type Tx 

type Tx struct {

	// City is the client for interacting with the City builders.
	City *CityClient
	// Street is the client for interacting with the Street builders.
	Street *StreetClient
	// contains filtered or unexported fields
}

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

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) Rollback 

func (tx *Tx) Rollback() error

Rollback rollbacks the transaction.

Source Files

View all Source files

Directories

Path Synopsis

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.