英文:
How to make fields in QoR model readonly?
问题
我有一个数据模型：
type Epg struct {
gorm.Model
Uri string `gorm:"not null;unique"`
Prefix string `gorm:"size:64;not null;default:''"`
Etag string
Updated time.Time
Status bool `gorm:"default:true"`
}
我在菜单中发布了这个数据模型：
EpgResource := Admin.AddResource(&models.Epg{}, &admin.Config{Menu: []string{"Content"}})
现在我可以通过QoR Admin面板查看和编辑数据。但是我想将Etag、Updated和Status的值设置为只读，因为它们是由系统更新的。
如果我尝试根据文档将这些字段设置为只读：
EpgResource.Meta(&admin.Meta{Name: "Etag", Type: "Readonly"})
我得到了一个错误。是否可能使数据模型中的某些字段可见但只读？如何做到这一点？
错误日志跟踪。
2017/04/25 01:16:04 Finish [GET] /admin/epgs Took 19.59ms
/usr/local/go/src/text/template/exec.go:433
/usr/local/go/src/text/template/exec.go:536
/usr/local/go/src/text/template/exec.go:668
/usr/local/go/src/reflect/value.go:302
/usr/local/go/src/reflect/value.go:434
/usr/local/go/src/runtime/asm_amd64.s:515
/home/rns/golang/src/github.com/qor/admin/func_map.go:1051
/home/rns/golang/src/github.com/qor/admin/func_map.go:220
/home/rns/golang/src/github.com/qor/admin/func_map.go:236
/home/rns/golang/src/github.com/qor/admin/func_map.go:393
got error when render form template for Etag(Readonly): haven't found form
template for meta Etag
英文:
I have a data model:
type Epg struct {
gorm.Model
Uri string `gorm:";not null;unique"`
Prefix string `gorm:"size:64;not null;default:''"`
Etag string
Updated time.Time
Status bool `gorm:"default:true"`
}
I publish this data model in menu:
EpgResource := Admin.AddResource(&models.Epg{}, &admin.Config{Menu: []string{"Content"}})
Now I can view and edit data via QoR Admin panel. But I want to make values Etag, Updated, Status to be readonly because they are updated by the system.
If I try to make this fields readonly according documentation:
EpgResource.Meta(&admin.Meta{Name: "Etag", Type: "Readonly"})
I got an error. Is it possible to make some fields in data model visible but readonly? How to do that?
Error log trace.
> 2017/04/25 01:16:04 Finish [GET] /admin/epgs Took 19.59ms
> /usr/local/go/src/text/template/exec.go:433
> /usr/local/go/src/text/template/exec.go:536
> /usr/local/go/src/text/template/exec.go:668
> /usr/local/go/src/reflect/value.go:302
> /usr/local/go/src/reflect/value.go:434
> /usr/local/go/src/runtime/asm_amd64.s:515
> /home/rns/golang/src/github.com/qor/admin/func_map.go:1051
> /home/rns/golang/src/github.com/qor/admin/func_map.go:220
> /home/rns/golang/src/github.com/qor/admin/func_map.go:236
> /home/rns/golang/src/github.com/qor/admin/func_map.go:393
> got error when render form template for Etag(Readonly): haven't found form
> template for meta Etag
答案1
得分: 1
那个特定的错误是由于qor在.../metas/form/Etag.tmpl找不到模板文件引起的，这个模板文件可能是用来将Etag渲染到表单中的。（你可以将模板渲染为只读/静态元素，而不是输入框）
英文:
That particular error is being caused by qor not finding a template file at .../metas/form/Etag.tmpl, which is presumably needed to actually render the Etag to the form. (You can make the template render a readonly/static element rather than an input)
答案2
得分: 0
EpgResource.Meta(&admin.Meta{Name: "Etag", Type: "Readonly"}) 只能在 Darwin（Mac）机器上工作，而不能在 Linux 机器上工作。
请执行以下操作：
EpgResource.Meta(&admin.Meta{Name: "Etag", Type: "readonly"})
希望这能帮到你。
参考链接：https://doc.getqor.com/admin/metas/hidden-readonly.html#readonly
英文:
EpgResource.Meta(&admin.Meta{Name: "Etag", Type: "Readonly"}) would work only on darwin (Mac) machines. But, not on linux machines.
Do the following:
EpgResource.Meta(&admin.Meta{Name: "Etag", Type: "readonly"})
I hope this helps.
Reference: https://doc.getqor.com/admin/metas/hidden-readonly.html#readonly
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