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focalboard/server/model/error.go

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package model
import (
"database/sql"
"errors"
"fmt"
"strings"
pluginapi "github.com/mattermost/mattermost-plugin-api"
)
// ErrBlocksFromDifferentBoards is an error type that can be returned
// when a set of blocks belong to different boards.
var ErrBlocksFromDifferentBoards = errors.New("blocks belong to different boards")
// ErrNotFound is an error type that can be returned by store APIs when a query unexpectedly fetches no records.
type ErrNotFound struct {
resource string
}
// NewErrNotFound creates a new ErrNotFound instance.
func NewErrNotFound(resource string) *ErrNotFound {
return &ErrNotFound{
resource: resource,
}
}
func (nf *ErrNotFound) Error() string {
return fmt.Sprintf("{%s} not found", nf.resource)
}
// IsErrNotFound returns true if `err` is or wraps one of:
// - model.ErrNotFound
// - sql.ErrNoRows
// - mattermost-plugin-api/ErrNotFound.
func IsErrNotFound(err error) bool {
if err == nil {
return false
}
// check if this is a sql.ErrNotFound
if errors.Is(err, sql.ErrNoRows) {
return true
}
// check if this is a model.ErrNotFound
var nf *ErrNotFound
if errors.As(err, &nf) {
return true
}
// check if this is a plugin API error
return errors.Is(err, pluginapi.ErrNotFound)
}
// ErrNotAllFound is an error type that can be returned by store APIs
// when a query that should fetch a certain amount of records
// unexpectedly fetches less.
type ErrNotAllFound struct {
resources []string
}
func NewErrNotAllFound(resources []string) *ErrNotAllFound {
return &ErrNotAllFound{
resources: resources,
}
}
func (na *ErrNotAllFound) Error() string {
return fmt.Sprintf("not all instances in {%s} found", strings.Join(na.resources, ", "))
}
// IsErrNotAllFound returns true if `err` is or wraps a ErrNotAllFound.
func IsErrNotAllFound(err error) bool {
if err == nil {
return false
}
var na *ErrNotAllFound
return errors.As(err, &na)
}