efb35a2d35
- docs/database: models, migrations, queries and pagination, relations, casts and validation, attachments and transactions (lagoon.Transaction, lagoon.AfterCommit, nested savepoints, lagoon.OnDatabase) - docs/services: configuration, events, routing with auth groups, rate limiting, authentication, the OAuth server, mail and localization - runnable Examples for lagoon, attach, compass, surf, wire, bouncer, wristband, postcard, phrasebook and festival; lagoon TestDocs* regions run on the package's Postgres harness through DocsDB - 15 new required pages
82 lines
2.0 KiB
Go
82 lines
2.0 KiB
Go
package attach_test
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"image"
|
|
"image/jpeg"
|
|
"os"
|
|
|
|
"git.golem15.com/golem15/summercms/modules/compass"
|
|
"git.golem15.com/golem15/summercms/modules/lagoon/attach"
|
|
)
|
|
|
|
// Post owns attachments. MorphName is the attachment_type value its rows
|
|
// carry: the PHP class name, so rows copied from WinterCMS keep matching.
|
|
type Post struct {
|
|
ID uint
|
|
}
|
|
|
|
func (Post) MorphName() string { return `Acme\Blog\Models\Post` }
|
|
|
|
func ExampleFile_Thumb() {
|
|
ctx := context.Background()
|
|
dir, err := os.MkdirTemp("", "acme-config")
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
return
|
|
}
|
|
defer os.RemoveAll(dir)
|
|
|
|
// storage.uploads.bucket_url is a file:// URL in production; mem:// keeps
|
|
// the example in memory.
|
|
cfg, err := compass.Open(compass.Options{Dir: dir, Env: "development", Environ: []string{}})
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
return
|
|
}
|
|
_ = cfg.Set("storage.uploads.bucket_url", "mem://")
|
|
bucket, err := attach.OpenBucket(ctx, cfg)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
return
|
|
}
|
|
defer bucket.Close()
|
|
|
|
// The system_files row of a post's cover image.
|
|
var owner attach.Owner = Post{ID: 1}
|
|
f := attach.File{
|
|
ID: 7,
|
|
DiskName: "5f1d0c2e9a7b4c3d8e6f.jpg",
|
|
FileName: "cover.jpg",
|
|
ContentType: "image/jpeg",
|
|
Field: "cover",
|
|
AttachmentType: owner.MorphName(),
|
|
AttachmentID: "1",
|
|
}
|
|
|
|
// The original is stored under its partitioned WinterCMS key.
|
|
var img bytes.Buffer
|
|
if err := jpeg.Encode(&img, image.NewRGBA(image.Rect(0, 0, 640, 480)), nil); err != nil {
|
|
fmt.Println(err)
|
|
return
|
|
}
|
|
if err := bucket.WriteAll(ctx, attach.BlobKey(f.DiskName), img.Bytes(), nil); err != nil {
|
|
fmt.Println(err)
|
|
return
|
|
}
|
|
fmt.Println(attach.BlobKey(f.DiskName))
|
|
|
|
// A thumbnail is generated on first use and reused afterwards.
|
|
url, err := f.Thumb(ctx, bucket, 200, 200, "crop")
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
return
|
|
}
|
|
fmt.Println(url)
|
|
// Output:
|
|
// 5f1/d0c/2e9/5f1d0c2e9a7b4c3d8e6f.jpg
|
|
// /storage/uploads/5f1/d0c/2e9/thumb_7_200_200_0_0_crop.jpg
|
|
}
|