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Diffstat (limited to 'doc/progs/error2.go')
-rw-r--r-- | doc/progs/error2.go | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/doc/progs/error2.go b/doc/progs/error2.go new file mode 100644 index 000000000..2b0e0c356 --- /dev/null +++ b/doc/progs/error2.go @@ -0,0 +1,54 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// This file contains the code snippets included in "Error Handling and Go." + +package main + +import ( + "net/http" + "text/template" +) + +func init() { + http.HandleFunc("/view", viewRecord) +} + +func viewRecord(w http.ResponseWriter, r *http.Request) { + c := appengine.NewContext(r) + key := datastore.NewKey(c, "Record", r.FormValue("id"), 0, nil) + record := new(Record) + if err := datastore.Get(c, key, record); err != nil { + http.Error(w, err.Error(), 500) + return + } + if err := viewTemplate.Execute(w, record); err != nil { + http.Error(w, err.Error(), 500) + } +} + +// STOP OMIT + +type ap struct{} + +func (ap) NewContext(*http.Request) *ctx { return nil } + +type ctx struct{} + +func (*ctx) Errorf(string, ...interface{}) {} + +var appengine ap + +type ds struct{} + +func (ds) NewKey(*ctx, string, string, int, *int) string { return "" } +func (ds) Get(*ctx, string, *Record) error { return nil } + +var datastore ds + +type Record struct{} + +var viewTemplate *template.Template + +func main() {} |