The placement ContentPart rule don't work

[effapp]

Describe the bug

The placement ContentPart rule don't work.

There is a MediaField in BackgroundPart.
placement rule:

"MediaField": [
 {
    "contentPart": [ "BackgroundPart" ],
    "place": "Background"
  }
],

But Model.Background is null in front-end, Actually, it should be Media Field Shape.
{{ Model.Background | shape_render }} render nothing.

Orchard Core version

Orchard Core version is 3.0.0-preview-18679

[effapp]

Version 2.1.7 is same issue,too.

[effapp]

Has anyone encountered the same issue as me, please?

[hishamco]

Steps to reproduce

[effapp]

Hi @hishamco ,

Steps to reproduce:

1. Create a project of OCCMS web site that is version 2.1.7
2. Create placement.json in root of the project

4. Run the project
5. Login to admin
6. Create a ContentPart named "BackgroundPart" with a MediaField named "BackgroundImage"
7. Create a ContentType named "MyWidget" that has sterotype Widget
8. Add TitlePart, BackgroundPart to MyWidget
9. Goto Design->Template menu, Create a template "Widget__MyWidget"

11. Goto Content->ContentItems menu, Create a ContentItem of Page named "Test Background"
12. Edit "Test Background", Add MyWidget to the page
13. Click MyWidget tab Backgroud, Select a image of BackgroundImage Field
14. View "Test Background" page
15. Issue occurred: {{ Model.Background | shape_render }} render nothing, It should render BackgroundImage Field's image
16. The project code as follow:

[effapp]

The project code :

Errors.Placement.Web.zip

[effapp]

Login Account is Admin , password is Passw0rd!

[hishamco]

Try this in your template

<img src="{{ Model.ContentItem.Content.BackgroundPart.BackgroundImage.Paths[0] | asset_url}}" />

It should work

[effapp]

I want to use placement.json to generate dynamicly shape .

[effapp]

Hi @hishamco ,
I thought it be bug that ContentPart placement rule don't work, as follows:

"MediaField": [
{
"contentPart": [ "BackgroundPart" ],
"place": "Background"
}
]

this rule comply with placement format.

[hishamco]

Oops, I didn't notice the placement

[hishamco]

@effapp what are you tring to do with this placement rule? Do you have a zone named "Background"?

[effapp]

Hi @hishamco ,
Model.Background is a dynamic shape that come from placement.json . The purpose of example project I provide is to reproduce placement bug, Could you transfer this discuss to issue, please?

[hishamco]

{
  "MediaField_Edit": [
    {
      "place": "Parts#Background:16",
      "differentiator": "BackgroundPart-BackgroundImage",
      "contentPart": [ "BackgroundPart" ]
    }
  ],
  "MediaField": [
    {
      "contentPart": [ "BackgroundPart" ],
      "place": "Background"
    }
  ]
}

The above is your placement.json. I never saw any Shape, or did I miss anything

Could you transfer this discuss to issue, please?

I will return it back to issues if it's a real bug

[effapp]

That is principle of how placement works.