// Code generated by ent, DO NOT EDIT.

package post

import (
	"fmt"
	"time"

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

const (
	// Label holds the string label denoting the post type in the database.
	Label = "post"
	// FieldID holds the string denoting the id field in the database.
	FieldID = "id"
	// FieldStatus holds the string denoting the status field in the database.
	FieldStatus = "status"
	// FieldSlug holds the string denoting the slug field in the database.
	FieldSlug = "slug"
	// 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"
	// EdgeContents holds the string denoting the contents edge name in mutations.
	EdgeContents = "contents"
	// EdgeContributors holds the string denoting the contributors edge name in mutations.
	EdgeContributors = "contributors"
	// EdgeCategories holds the string denoting the categories edge name in mutations.
	EdgeCategories = "categories"
	// Table holds the table name of the post in the database.
	Table = "posts"
	// ContentsTable is the table that holds the contents relation/edge.
	ContentsTable = "post_contents"
	// ContentsInverseTable is the table name for the PostContent entity.
	// It exists in this package in order to avoid circular dependency with the "postcontent" package.
	ContentsInverseTable = "post_contents"
	// ContentsColumn is the table column denoting the contents relation/edge.
	ContentsColumn = "post_contents"
	// ContributorsTable is the table that holds the contributors relation/edge.
	ContributorsTable = "post_contributors"
	// ContributorsInverseTable is the table name for the PostContributor entity.
	// It exists in this package in order to avoid circular dependency with the "postcontributor" package.
	ContributorsInverseTable = "post_contributors"
	// ContributorsColumn is the table column denoting the contributors relation/edge.
	ContributorsColumn = "post_contributors"
	// CategoriesTable is the table that holds the categories relation/edge. The primary key declared below.
	CategoriesTable = "category_posts"
	// CategoriesInverseTable is the table name for the Category entity.
	// It exists in this package in order to avoid circular dependency with the "category" package.
	CategoriesInverseTable = "categories"
)

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

var (
	// CategoriesPrimaryKey and CategoriesColumn2 are the table columns denoting the
	// primary key for the categories relation (M2M).
	CategoriesPrimaryKey = []string{"category_id", "post_id"}
)

// 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 (
	// SlugValidator is a validator for the "slug" field. It is called by the builders before save.
	SlugValidator func(string) error
	// 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
)

// Status defines the type for the "status" enum field.
type Status string

// StatusDraft is the default value of the Status enum.
const DefaultStatus = StatusDraft

// Status values.
const (
	StatusDraft     Status = "draft"
	StatusPublished Status = "published"
	StatusArchived  Status = "archived"
)

func (s Status) String() string {
	return string(s)
}

// StatusValidator is a validator for the "status" field enum values. It is called by the builders before save.
func StatusValidator(s Status) error {
	switch s {
	case StatusDraft, StatusPublished, StatusArchived:
		return nil
	default:
		return fmt.Errorf("post: invalid enum value for status field: %q", s)
	}
}

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

// ByStatus orders the results by the status field.
func ByStatus(opts ...sql.OrderTermOption) OrderOption {
	return sql.OrderByField(FieldStatus, opts...).ToFunc()
}

// BySlug orders the results by the slug field.
func BySlug(opts ...sql.OrderTermOption) OrderOption {
	return sql.OrderByField(FieldSlug, 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()
}

// ByContentsCount orders the results by contents count.
func ByContentsCount(opts ...sql.OrderTermOption) OrderOption {
	return func(s *sql.Selector) {
		sqlgraph.OrderByNeighborsCount(s, newContentsStep(), opts...)
	}
}

// ByContents orders the results by contents terms.
func ByContents(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
	return func(s *sql.Selector) {
		sqlgraph.OrderByNeighborTerms(s, newContentsStep(), append([]sql.OrderTerm{term}, terms...)...)
	}
}

// ByContributorsCount orders the results by contributors count.
func ByContributorsCount(opts ...sql.OrderTermOption) OrderOption {
	return func(s *sql.Selector) {
		sqlgraph.OrderByNeighborsCount(s, newContributorsStep(), opts...)
	}
}

// ByContributors orders the results by contributors terms.
func ByContributors(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
	return func(s *sql.Selector) {
		sqlgraph.OrderByNeighborTerms(s, newContributorsStep(), append([]sql.OrderTerm{term}, terms...)...)
	}
}

// ByCategoriesCount orders the results by categories count.
func ByCategoriesCount(opts ...sql.OrderTermOption) OrderOption {
	return func(s *sql.Selector) {
		sqlgraph.OrderByNeighborsCount(s, newCategoriesStep(), opts...)
	}
}

// ByCategories orders the results by categories terms.
func ByCategories(term sql.OrderTerm, terms ...sql.OrderTerm) OrderOption {
	return func(s *sql.Selector) {
		sqlgraph.OrderByNeighborTerms(s, newCategoriesStep(), append([]sql.OrderTerm{term}, terms...)...)
	}
}
func newContentsStep() *sqlgraph.Step {
	return sqlgraph.NewStep(
		sqlgraph.From(Table, FieldID),
		sqlgraph.To(ContentsInverseTable, FieldID),
		sqlgraph.Edge(sqlgraph.O2M, false, ContentsTable, ContentsColumn),
	)
}
func newContributorsStep() *sqlgraph.Step {
	return sqlgraph.NewStep(
		sqlgraph.From(Table, FieldID),
		sqlgraph.To(ContributorsInverseTable, FieldID),
		sqlgraph.Edge(sqlgraph.O2M, false, ContributorsTable, ContributorsColumn),
	)
}
func newCategoriesStep() *sqlgraph.Step {
	return sqlgraph.NewStep(
		sqlgraph.From(Table, FieldID),
		sqlgraph.To(CategoriesInverseTable, FieldID),
		sqlgraph.Edge(sqlgraph.M2M, true, CategoriesTable, CategoriesPrimaryKey...),
	)
}