// Code generated by ent, DO NOT EDIT.

package attachment

import (
	"fmt"
	"time"

	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/dialect/sql/sqlgraph"
	"github.com/google/uuid"
)

const (
	// Label holds the string label denoting the attachment type in the database.
	Label = "attachment"
	// FieldID holds the string denoting the id field in the database.
	FieldID = "id"
	// FieldCreatedAt holds the string denoting the created_at field in the database.
	FieldCreatedAt = "created_at"
	// FieldUpdatedAt holds the string denoting the updated_at field in the database.
	FieldUpdatedAt = "updated_at"
	// FieldType holds the string denoting the type field in the database.
	FieldType = "type"
	// EdgeItem holds the string denoting the item edge name in mutations.
	EdgeItem = "item"
	// EdgeDocument holds the string denoting the document edge name in mutations.
	EdgeDocument = "document"
	// Table holds the table name of the attachment in the database.
	Table = "attachments"
	// ItemTable is the table that holds the item relation/edge.
	ItemTable = "attachments"
	// ItemInverseTable is the table name for the Item entity.
	// It exists in this package in order to avoid circular dependency with the "item" package.
	ItemInverseTable = "items"
	// ItemColumn is the table column denoting the item relation/edge.
	ItemColumn = "item_attachments"
	// DocumentTable is the table that holds the document relation/edge.
	DocumentTable = "attachments"
	// DocumentInverseTable is the table name for the Document entity.
	// It exists in this package in order to avoid circular dependency with the "document" package.
	DocumentInverseTable = "documents"
	// DocumentColumn is the table column denoting the document relation/edge.
	DocumentColumn = "document_attachments"
)

// Columns holds all SQL columns for attachment fields.
var Columns = []string{
	FieldID,
	FieldCreatedAt,
	FieldUpdatedAt,
	FieldType,
}

// ForeignKeys holds the SQL foreign-keys that are owned by the "attachments"
// table and are not defined as standalone fields in the schema.
var ForeignKeys = []string{
	"document_attachments",
	"item_attachments",
}

// ValidColumn reports if the column name is valid (part of the table columns).
func ValidColumn(column string) bool {
	for i := range Columns {
		if column == Columns[i] {
			return true
		}
	}
	for i := range ForeignKeys {
		if column == ForeignKeys[i] {
			return true
		}
	}
	return false
}

var (
	// DefaultCreatedAt holds the default value on creation for the "created_at" field.
	DefaultCreatedAt func() time.Time
	// DefaultUpdatedAt holds the default value on creation for the "updated_at" field.
	DefaultUpdatedAt func() time.Time
	// UpdateDefaultUpdatedAt holds the default value on update for the "updated_at" field.
	UpdateDefaultUpdatedAt func() time.Time
	// DefaultID holds the default value on creation for the "id" field.
	DefaultID func() uuid.UUID
)

// Type defines the type for the "type" enum field.
type Type string

// TypeAttachment is the default value of the Type enum.
const DefaultType = TypeAttachment

// Type values.
const (
	TypePhoto      Type = "photo"
	TypeManual     Type = "manual"
	TypeWarranty   Type = "warranty"
	TypeAttachment Type = "attachment"
	TypeReceipt    Type = "receipt"
)

func (_type Type) String() string {
	return string(_type)
}

// TypeValidator is a validator for the "type" field enum values. It is called by the builders before save.
func TypeValidator(_type Type) error {
	switch _type {
	case TypePhoto, TypeManual, TypeWarranty, TypeAttachment, TypeReceipt:
		return nil
	default:
		return fmt.Errorf("attachment: invalid enum value for type field: %q", _type)
	}
}

// OrderOption defines the ordering options for the Attachment queries.
type OrderOption func(*sql.Selector)

// ByID orders the results by the id field.
func ByID(opts ...sql.OrderTermOption) OrderOption {
	return sql.OrderByField(FieldID, opts...).ToFunc()
}

// ByCreatedAt orders the results by the created_at field.
func ByCreatedAt(opts ...sql.OrderTermOption) OrderOption {
	return sql.OrderByField(FieldCreatedAt, opts...).ToFunc()
}

// ByUpdatedAt orders the results by the updated_at field.
func ByUpdatedAt(opts ...sql.OrderTermOption) OrderOption {
	return sql.OrderByField(FieldUpdatedAt, opts...).ToFunc()
}

// ByType orders the results by the type field.
func ByType(opts ...sql.OrderTermOption) OrderOption {
	return sql.OrderByField(FieldType, opts...).ToFunc()
}

// ByItemField orders the results by item field.
func ByItemField(field string, opts ...sql.OrderTermOption) OrderOption {
	return func(s *sql.Selector) {
		sqlgraph.OrderByNeighborTerms(s, newItemStep(), sql.OrderByField(field, opts...))
	}
}

// ByDocumentField orders the results by document field.
func ByDocumentField(field string, opts ...sql.OrderTermOption) OrderOption {
	return func(s *sql.Selector) {
		sqlgraph.OrderByNeighborTerms(s, newDocumentStep(), sql.OrderByField(field, opts...))
	}
}
func newItemStep() *sqlgraph.Step {
	return sqlgraph.NewStep(
		sqlgraph.From(Table, FieldID),
		sqlgraph.To(ItemInverseTable, FieldID),
		sqlgraph.Edge(sqlgraph.M2O, true, ItemTable, ItemColumn),
	)
}
func newDocumentStep() *sqlgraph.Step {
	return sqlgraph.NewStep(
		sqlgraph.From(Table, FieldID),
		sqlgraph.To(DocumentInverseTable, FieldID),
		sqlgraph.Edge(sqlgraph.M2O, true, DocumentTable, DocumentColumn),
	)
}