Issue when using editor.Tags and reference.SelectRepeater about ponzu

[arjanvaneersel]

The issue I'm having with Ponzu in the other thread has to do with exactly the same code.I went back to the recording of the gopher academy training on Ponzu to do the exercise again to get the hang of Ponzu. However the updates to channel.go now result in a panic error as soon as I try to create a new channel via admin. Am i doing something wrong or is this connected to this bug?

package content

import ( 
"fmt"

"github.com/ponzu-cms/ponzu/management/editor" 
"github.com/ponzu-cms/ponzu/system/item" 
"github.com/arjanvaneersel/gotv/addons/github.com/bosssauce/reference" 
)

type Channel struct { 
item.Item

Title string `json:"title"` 
Videos []string `json:"videos"` 
Rating string `json:"rating"` 
Tags []string `json:"tags"` 
}

// MarshalEditor writes a buffer of html to edit a Channel within the CMS 
// and implements editor.Editable 
func (c *Channel) MarshalEditor() ([]byte, error) { 
view, err := editor.Form(c, 
// Take note that the first argument to these Input-like functions 
// is the string version of each Channel field, and must follow 
// this pattern for auto-decoding and auto-encoding reasons: 
editor.Field{ 
View: editor.Input("Title", c, map[string]string{ 
"label": "Title", 
"type": "text", 
"placeholder": "Enter the Title here", 
}), 
}, 
editor.Field{ 
View: reference.SelectRepeater("Videos", c, map[string]string{ 
"label": "Videos", 
}, "Video", `{{.title}} ({{.rating}})`), 
}, 
editor.Field{ 
View: editor.Select("Rating", c, map[string]string{ 
"label": "Rating", 
}, map[string]string{ 
"G": "G", 
"PG": "PG", 
"PG-13": "PG-13", 
"R": "R", 
}), 
}, 
editor.Field{ 
View: editor.Tags("Tags", c, map[string]string{ 
"label": "Tags", 
}), 
}, 
)

if err != nil { 
return nil, fmt.Errorf("Failed to render Channel editor view: %s", err.Error()) 
}

return view, nil 
}

func init() { 
item.Types["Channel"] = func() interface{} { return new(Channel) } 
}

The error I get:
2017/02/19 09:09:07 http: panic serving [::1]:39134: interface conversion: interface {} is nil, not string
goroutine 36 [running]:
net/http.(*conn).serve.func1(0xc4201583c0)
/usr/local/go/src/net/http/server.go:1721 +0xd0
panic(0x895a00, 0xc42013da40)
/usr/local/go/src/runtime/panic.go:489 +0x2cf
github.com/ponzu-cms/ponzu/system/addon.ContentAll(0x90f229, 0x5, 0xc420017650, 0x0, 0xc420017650)
/home/arjan/Development/Go/src/github.com/ponzu-cms/ponzu/system/addon/api.go:21 +0x3d2
github.com/arjanvaneersel/gotv/addons/github.com/bosssauce/reference.encodeDataToOptions(0x90f229, 0x5, 0x91bd00, 0x18, 0xc420104980, 0x1, 0x1)
/home/arjan/Development/Go/src/github.com/arjanvaneersel/gotv/addons/github.com/bosssauce/reference/reference.go:122 +0xac
github.com/arjanvaneersel/gotv/addons/github.com/bosssauce/reference.SelectRepeater(0x90fee4, 0x6, 0x8f7d40, 0xc420151050, 0xc4200175f0, 0x90f229, 0x5, 0x91bd00, 0x18, 0x7f2df8309440, ...)
/home/arjan/Development/Go/src/github.com/arjanvaneersel/gotv/addons/github.com/bosssauce/reference/reference.go:57 +0x384
github.com/arjanvaneersel/gotv/cmd/ponzu/vendor/github.com/ponzu-cms/ponzu/content.(*Channel).MarshalEditor(0xc420151050, 0xc420104940, 0xe200000000000000, 0x8, 0xe20fd6032780c56a, 0x0)
/home/arjan/Development/Go/src/github.com/arjanvaneersel/gotv/cmd/ponzu/vendor/github.com/ponzu-cms/ponzu/content/channel.go:37 +0x280
github.com/arjanvaneersel/gotv/cmd/ponzu/vendor/github.com/ponzu-cms/ponzu/management/manager.Manage(0xb38580, 0xc420151050, 0xc420117e75, 0x7, 0xc420151050, 0x1, 0x0, 0x0, 0x0)
/home/arjan/Development/Go/src/github.com/arjanvaneersel/gotv/cmd/ponzu/vendor/github.com/ponzu-cms/ponzu/management/manager/manager.go:122 +0x4c
github.com/arjanvaneersel/gotv/cmd/ponzu/vendor/github.com/ponzu-cms/ponzu/system/admin.editHandler(0xb3ea80, 0xc4219b4460, 0xc420188000)
/home/arjan/Development/Go/src/github.com/arjanvaneersel/gotv/cmd/ponzu/vendor/github.com/ponzu-cms/ponzu/system/admin/handlers.go:1490 +0x27f0
net/http.HandlerFunc.ServeHTTP(0x935828, 0xb3ea80, 0xc4219b4460, 0xc420188000)
/usr/local/go/src/net/http/server.go:1942 +0x44
github.com/arjanvaneersel/gotv/cmd/ponzu/vendor/github.com/ponzu-cms/ponzu/system/admin/user.Auth.func1(0xb3ea80, 0xc4219b4460, 0xc420188000)
/home/arjan/Development/Go/src/github.com/arjanvaneersel/gotv/cmd/ponzu/vendor/github.com/ponzu-cms/ponzu/system/admin/user/auth.go:55 +0xda
net/http.HandlerFunc.ServeHTTP(0xc4201040b0, 0xb3ea80, 0xc4219b4460, 0xc420188000)
/usr/local/go/src/net/http/server.go:1942 +0x44
net/http.(*ServeMux).ServeHTTP(0xb803a0, 0xb3ea80, 0xc4219b4460, 0xc420188000)
/usr/local/go/src/net/http/server.go:2238 +0x130
net/http.serverHandler.ServeHTTP(0xc420090b00, 0xb3ea80, 0xc4219b4460, 0xc420188000)
/usr/local/go/src/net/http/server.go:2568 +0x92
net/http.(*conn).serve(0xc4201583c0, 0xb3f380, 0xc420100480)
/usr/local/go/src/net/http/server.go:1825 +0x612
created by net/http.(*Server).Serve
/usr/local/go/src/net/http/server.go:2668 +0x2ce

[nilslice]

Hi @arjanvaneersel -

However the updates to channel.go now result in a panic error as soon as I try to create a new channel via admin.

Which updates do you mean?

[arjanvaneersel]

I obviously haven't been clear. I'm doing the exercise as shown in the recording of the gopher academy training on Ponzu again. After the creation of alle the content types the go files are being changed in the training, so I follow along. The moment when I "update" the editor.Field for Videos, which was just a normal input type, to reference.SelectRepeater and build and run Ponzu again, then I get this error when going into Ponzu's editor for this content type.

[nilslice]

Could you try changing the import path for the "reference" package to this: "github.com/bosssauce/reference" That is the canonical path, and although you have the package at the import path you included, running `$ ponzu build ` will copy that code from your addon directory into its internal vendor directory where it then compiles the packages into your project.

…

On Mon, Feb 20, 2017 at 20:15 Arjan van Eersel ***@***.***> wrote: I obviously haven't been clear. I'm doing the exercise as shown in the recording of the gopher academy training on Ponzu again. After the creation of alle the content types the go files are being changed in the training, so I follow along. The moment when I "update" the editor.Field for Videos, which was just a normal input type, to reference.SelectRepeater and build and run Ponzu again, then I get this error when going into Ponzu's editor for this content type. — You are receiving this because you were assigned. Reply to this email directly, view it on GitHub <#59 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AHK1S8hP9eLpngiFTPP8QhkTf017isDSks5remTSgaJpZM4L1psB> .

[arjanvaneersel]

That indeed did it. I relied on the auto import function of gogland and never even thought about something as simple as checking the import path... Thanks for your help.

[nilslice]

Excellent! Glad it fixed the issue.