// Code generated by ent, DO NOT EDIT.

package postcontributor

import (
	"fmt"
	"time"

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

const (
	// Label holds the string label denoting the postcontributor type in the database.
	Label = "post_contributor"
	// FieldID holds the string denoting the id field in the database.
	FieldID = "id"
	// FieldLanguageCode holds the string denoting the language_code field in the database.
	FieldLanguageCode = "language_code"
	// FieldCreatedAt holds the string denoting the created_at field in the database.
	FieldCreatedAt = "created_at"
	// EdgePost holds the string denoting the post edge name in mutations.
	EdgePost = "post"
	// EdgeContributor holds the string denoting the contributor edge name in mutations.
	EdgeContributor = "contributor"
	// EdgeRole holds the string denoting the role edge name in mutations.
	EdgeRole = "role"
	// Table holds the table name of the postcontributor in the database.
	Table = "post_contributors"
	// PostTable is the table that holds the post relation/edge.
	PostTable = "post_contributors"
	// PostInverseTable is the table name for the Post entity.
	// It exists in this package in order to avoid circular dependency with the "post" package.
	PostInverseTable = "posts"
	// PostColumn is the table column denoting the post relation/edge.
	PostColumn = "post_contributors"
	// ContributorTable is the table that holds the contributor relation/edge.
	ContributorTable = "post_contributors"
	// ContributorInverseTable is the table name for the Contributor entity.
	// It exists in this package in order to avoid circular dependency with the "contributor" package.
	ContributorInverseTable = "contributors"
	// ContributorColumn is the table column denoting the contributor relation/edge.
	ContributorColumn = "contributor_posts"
	// RoleTable is the table that holds the role relation/edge.
	RoleTable = "post_contributors"
	// RoleInverseTable is the table name for the ContributorRole entity.
	// It exists in this package in order to avoid circular dependency with the "contributorrole" package.
	RoleInverseTable = "contributor_roles"
	// RoleColumn is the table column denoting the role relation/edge.
	RoleColumn = "contributor_role_post_contributors"
)

// Columns holds all SQL columns for postcontributor fields.
var Columns = []string{
	FieldID,
	FieldLanguageCode,
	FieldCreatedAt,
}

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

// 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
)

// LanguageCode defines the type for the "language_code" enum field.
type LanguageCode string

// LanguageCode values.
const (
	LanguageCodeEn     LanguageCode = "en"
	LanguageCodeZhHans LanguageCode = "zh-Hans"
	LanguageCodeZhHant LanguageCode = "zh-Hant"
)

func (lc LanguageCode) String() string {
	return string(lc)
}

// LanguageCodeValidator is a validator for the "language_code" field enum values. It is called by the builders before save.
func LanguageCodeValidator(lc LanguageCode) error {
	switch lc {
	case LanguageCodeEn, LanguageCodeZhHans, LanguageCodeZhHant:
		return nil
	default:
		return fmt.Errorf("postcontributor: invalid enum value for language_code field: %q", lc)
	}
}

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

// ByLanguageCode orders the results by the language_code field.
func ByLanguageCode(opts ...sql.OrderTermOption) OrderOption {
	return sql.OrderByField(FieldLanguageCode, opts...).ToFunc()
}

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

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

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

// ByRoleField orders the results by role field.
func ByRoleField(field string, opts ...sql.OrderTermOption) OrderOption {
	return func(s *sql.Selector) {
		sqlgraph.OrderByNeighborTerms(s, newRoleStep(), sql.OrderByField(field, opts...))
	}
}
func newPostStep() *sqlgraph.Step {
	return sqlgraph.NewStep(
		sqlgraph.From(Table, FieldID),
		sqlgraph.To(PostInverseTable, FieldID),
		sqlgraph.Edge(sqlgraph.M2O, true, PostTable, PostColumn),
	)
}
func newContributorStep() *sqlgraph.Step {
	return sqlgraph.NewStep(
		sqlgraph.From(Table, FieldID),
		sqlgraph.To(ContributorInverseTable, FieldID),
		sqlgraph.Edge(sqlgraph.M2O, true, ContributorTable, ContributorColumn),
	)
}
func newRoleStep() *sqlgraph.Step {
	return sqlgraph.NewStep(
		sqlgraph.From(Table, FieldID),
		sqlgraph.To(RoleInverseTable, FieldID),
		sqlgraph.Edge(sqlgraph.M2O, true, RoleTable, RoleColumn),
	)
}