feat(backend): add basic backend code

backend/db/invitecode/invitecode.go

@@ -0,0 +1,82 @@
+// Code generated by ent, DO NOT EDIT.
+
+package invitecode
+
+import (
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+)
+
+const (
+	// Label holds the string label denoting the invitecode type in the database.
+	Label = "invite_code"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldAdminID holds the string denoting the admin_id field in the database.
+	FieldAdminID = "admin_id"
+	// FieldCode holds the string denoting the code field in the database.
+	FieldCode = "code"
+	// 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"
+	// Table holds the table name of the invitecode in the database.
+	Table = "invite_codes"
+)
+
+// Columns holds all SQL columns for invitecode fields.
+var Columns = []string{
+	FieldID,
+	FieldAdminID,
+	FieldCode,
+	FieldCreatedAt,
+	FieldUpdatedAt,
+}
+
+// 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 (
+	// 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
+)
+
+// OrderOption defines the ordering options for the InviteCode 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()
+}
+
+// ByAdminID orders the results by the admin_id field.
+func ByAdminID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldAdminID, opts...).ToFunc()
+}
+
+// ByCode orders the results by the code field.
+func ByCode(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldCode, 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()
+}