// Code generated by ent, DO NOT EDIT.

package announcementread

import (
	"time"

	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/dialect/sql/sqlgraph"
)

const (
	// Label holds the string label denoting the announcementread type in the database.
	Label = "announcement_read"
	// FieldID holds the string denoting the id field in the database.
	FieldID = "id"
	// FieldAnnouncementID holds the string denoting the announcement_id field in the database.
	FieldAnnouncementID = "announcement_id"
	// FieldUserID holds the string denoting the user_id field in the database.
	FieldUserID = "user_id"
	// FieldReadAt holds the string denoting the read_at field in the database.
	FieldReadAt = "read_at"
	// FieldCreatedAt holds the string denoting the created_at field in the database.
	FieldCreatedAt = "created_at"
	// EdgeAnnouncement holds the string denoting the announcement edge name in mutations.
	EdgeAnnouncement = "announcement"
	// EdgeUser holds the string denoting the user edge name in mutations.
	EdgeUser = "user"
	// Table holds the table name of the announcementread in the database.
	Table = "announcement_reads"
	// AnnouncementTable is the table that holds the announcement relation/edge.
	AnnouncementTable = "announcement_reads"
	// AnnouncementInverseTable is the table name for the Announcement entity.
	// It exists in this package in order to avoid circular dependency with the "announcement" package.
	AnnouncementInverseTable = "announcements"
	// AnnouncementColumn is the table column denoting the announcement relation/edge.
	AnnouncementColumn = "announcement_id"
	// UserTable is the table that holds the user relation/edge.
	UserTable = "announcement_reads"
	// UserInverseTable is the table name for the User entity.
	// It exists in this package in order to avoid circular dependency with the "user" package.
	UserInverseTable = "users"
	// UserColumn is the table column denoting the user relation/edge.
	UserColumn = "user_id"
)

// Columns holds all SQL columns for announcementread fields.
var Columns = []string{
	FieldID,
	FieldAnnouncementID,
	FieldUserID,
	FieldReadAt,
	FieldCreatedAt,
}

// 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
		}
	}
	return false
}

var (
	// DefaultReadAt holds the default value on creation for the "read_at" field.
	DefaultReadAt func() time.Time
	// DefaultCreatedAt holds the default value on creation for the "created_at" field.
	DefaultCreatedAt func() time.Time
)

// OrderOption defines the ordering options for the AnnouncementRead 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()
}

// ByAnnouncementID orders the results by the announcement_id field.
func ByAnnouncementID(opts ...sql.OrderTermOption) OrderOption {
	return sql.OrderByField(FieldAnnouncementID, opts...).ToFunc()
}

// ByUserID orders the results by the user_id field.
func ByUserID(opts ...sql.OrderTermOption) OrderOption {
	return sql.OrderByField(FieldUserID, opts...).ToFunc()
}

// ByReadAt orders the results by the read_at field.
func ByReadAt(opts ...sql.OrderTermOption) OrderOption {
	return sql.OrderByField(FieldReadAt, opts...).ToFunc()
}

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

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

// ByUserField orders the results by user field.
func ByUserField(field string, opts ...sql.OrderTermOption) OrderOption {
	return func(s *sql.Selector) {
		sqlgraph.OrderByNeighborTerms(s, newUserStep(), sql.OrderByField(field, opts...))
	}
}
func newAnnouncementStep() *sqlgraph.Step {
	return sqlgraph.NewStep(
		sqlgraph.From(Table, FieldID),
		sqlgraph.To(AnnouncementInverseTable, FieldID),
		sqlgraph.Edge(sqlgraph.M2O, true, AnnouncementTable, AnnouncementColumn),
	)
}
func newUserStep() *sqlgraph.Step {
	return sqlgraph.NewStep(
		sqlgraph.From(Table, FieldID),
		sqlgraph.To(UserInverseTable, FieldID),
		sqlgraph.Edge(sqlgraph.M2O, true, UserTable, UserColumn),
	)
}