Euth posting empty empty image

[slomo]

In euth there is the process idea_collection, which contains proposals with an optional ImageReference sheet:

If I query the latest version I have the following result:

$ curl http://localhost:6541/opin/idea_collection/proposal_0000002/VERSION_0000000/ | python -m json.tool
{
    "content_type": "adhocracy_core.resources.proposal.IProposalVersion",
    "data": {
        "adhocracy_core.sheets.badge.IBadgeable": {
            "assignments": [
                "http://localhost:6541/opin/idea_collection/proposal_0000002/badge_assignments/0000000/"
            ],
            "post_pool": "http://localhost:6541/opin/idea_collection/proposal_0000002/badge_assignments/"
        },
        "adhocracy_core.sheets.comment.ICommentable": {
            "comments_count": "0",
            "post_pool": "http://localhost:6541/opin/idea_collection/proposal_0000002/comments/"
        },
        "adhocracy_core.sheets.description.IDescription": {
            "description": "asjdajdjasdas",
            "short_description": ""
        },
        "adhocracy_core.sheets.image.IImageReference": {
            "external_picture_url": "",
            "picture": null,
            "picture_description": ""
        },
        "adhocracy_core.sheets.metadata.IMetadata": {
            "creation_date": "2016-05-10T10:05:41.814965+00:00",
            "creator": "http://localhost:6541/principals/users/0000000/",
            "deleted": "false",
            "hidden": "false",
            "item_creation_date": "2016-05-10T10:05:41.814965+00:00",
            "modification_date": "2016-05-10T10:05:41.814965+00:00",
            "modified_by": "http://localhost:6541/principals/users/0000000/"
        },
        "adhocracy_core.sheets.rate.IRateable": {
            "post_pool": "http://localhost:6541/opin/idea_collection/proposal_0000002/rates/"
        },
        "adhocracy_core.sheets.relation.IPolarizable": {
            "polarizations": [],
            "post_pool": "http://localhost:6541/opin/idea_collection/proposal_0000002/relations/"
        },
        "adhocracy_core.sheets.title.ITitle": {
            "title": "asdjadajdsjad"
        },
        "adhocracy_core.sheets.versions.IVersionable": {
            "follows": []
        }
    },
    "path": "http://localhost:6541/opin/idea_collection/proposal_0000002/VERSION_0000000/"
}

But posting a new version with just the description updated will lead in an error

> curl 'http://localhost:6541/batch' -H 'Content-Type: application/json;charset=UTF-8' -H 'Accept: application/json' -H 'X-User-Token: acd2e5e475047fd64d060e3a2d3fc822241d8cf58c48aa939a4f7e5b6ec96ef1b6800006840f4b4da58d00b184a23ea60e7a87000781774886d1d46f5b60d911' --data-binary '[
    {
        "body": {
            "content_type": "adhocracy_core.resources.proposal.IProposalVersion",
            "data": {
                "adhocracy_core.sheets.description.IDescription": {
                    "description": "New content"
                },
                "adhocracy_core.sheets.image.IImageReference": {
                    "external_picture_url": "",
                    "picture": null,
                    "picture_description": "",
                    "preliminaryNames": {
                        "state": 12
                    }
                },
                "adhocracy_core.sheets.metadata.IMetadata": {
                    "deleted": false,
                    "preliminaryNames": {
                        "state": 12
                    }
                },
                "adhocracy_core.sheets.title.ITitle": {
                    "title": "asdjadajdsjad"
                },
                "adhocracy_core.sheets.versions.IVersionable": {
                    "follows": [
                        "http://localhost:6541/opin/idea_collection/proposal_0000002/VERSION_0000000/"
                    ]
                }
            },
            "parent": "http://localhost:6541/opin/idea_collection/proposal_0000002/",
            "root_versions": []
        },
        "method": "POST",
        "path": "http://localhost:6541/opin/idea_collection/proposal_0000002/",
        "result_first_version_path": "@pn12",
        "result_path": "@pn11"
    }
]
' | python -m json.tool
{
    "errors": [],
    "responses": [
        {
            "body": {
                "errors": [
                    {
                        "description": "This Resource does not provide interface adhocracy_core.sheets.image.IImageMetadata",
                        "location": "body",
                        "name": "data.adhocracy_core.sheets.image.IImageReference.picture"
                    }
                ],
                "status": "error"
            },
            "code": 400
        }
    ],
    "status": "error",
    "updated_resources": {
        "changed_descendants": [],
        "created": [],
        "modified": [],
        "removed": []
    }
}

While I understand the error. I think if I fetch an resource and modify it only slightly I should be able to store it back again.

[joka]

While I understand the error. I think if I fetch an resource and modify it only slightly I should be able to store it back again.

The put requests are meant to change specific data, not to store the whole data back again. In #2283 we started to change this, because its not what you expect and it does not play well with server side rendering.

In this case null should be a valid value for the picture field, looks like a bug.

Anyway mind setting the external_picture_url field, this downloads the referenced image creates a new picture resource.

[pallix]

What happens if you post without the "picture" key?

@joka is null allowed as a value for references?

[joka]

What happens if you post without the "picture" key?

@joka is null allowed as a value for references?

Yes,