Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Don't miss out! 2025 Microsoft Fabric Community Conference, March 31 - April 2, Las Vegas, Nevada. Use code MSCUST for a $150 discount. Prices go up February 11th. Register now.

Reply
AdamWhittaker
Helper I
Helper I

dataRoles / dataViewMappings fror muliple tables?

Hello,

 

How would i go about designing the capabilities.json file if i want to add 3 related tables to a custom visual, at first i thought i should use tables but the api limits it to one..

 

I am trying to send somthing like this

 

Person:

personId

PersonName

 

Events:

personId

EventName

EventStart

EventEnd

 

The two tables are linked via personId.

I thought something like this:

    "dataViewMappings": [
        {
            "categorical": {
                "categories": [
                    {
                        "for": {
                            "in": "resourceId"
                        }
                    },
                    {
                        "for": {
                            "in": "resourceName"
                        }
                    },
                    {
                        "for": {
                            "in": "territory"
                        }
                    },
                    {
                        "for": {
                            "in": "eventColor"
                        }
                    }
                ],
                "values": {
                    "select": [
                        {
                            "bind": {
                                "to": "eventId"
                            }
                        },
                        {
                            "bind": {
                                "to": "eventName"
                            }
                        },
                        {
                            "bind": {
                                "to": "manager"
                            }
                        },
                        {
                            "bind": {
                                "to": "appointmentNumber"
                            }
                        },
                        {
                            "bind": {
                                "to": "status"
                            }
                        },
                        {
                            "bind": {
                                "to": "description"
                            }
                        },
                        {
                            "bind": {
                                "to": "startDate"
                            }
                        },
                        {
                            "bind": {
                                "to": "endDate"
                            }
                        }
                    ]
                }
            }
        }
    ]



But categories cannot be an array?

 

Thanks

 

1 ACCEPTED SOLUTION
dm-p
Super User
Super User

Hi @AdamWhittaker,

 

Because categories can have other potential properties (like dataReductionAlgorithm), you would add a select property with an array to your existing object and include the data roles there (like you have done for values). The following should work based on your above definition (or get you close to it - it's a valid pattern that I have used in other visuals):

 

{
    "dataViewMappings": [
        {
            "categorical": {
                "categories": {
                    "select": [
                        {
                            "for": {
                                "in": "resourceId"
                            }
                        },
                        {
                            "for": {
                                "in": "resourceName"
                            }
                        },
                        {
                            "for": {
                                "in": "territory"
                            }
                        },
                        {
                            "for": {
                                "in": "eventColor"
                            }
                        }
                    ]
                },
                "values": {
                    "select": [
                        {
                            "bind": {
                                "to": "eventId"
                            }
                        },
                        {
                            "bind": {
                                "to": "eventName"
                            }
                        },
                        {
                            "bind": {
                                "to": "manager"
                            }
                        },
                        {
                            "bind": {
                                "to": "appointmentNumber"
                            }
                        },
                        {
                            "bind": {
                                "to": "status"
                            }
                        },
                        {
                            "bind": {
                                "to": "description"
                            }
                        },
                        {
                            "bind": {
                                "to": "startDate"
                            }
                        },
                        {
                            "bind": {
                                "to": "endDate"
                            }
                        }
                    ]
                }
            }
        }
    ]
}

 

Good luck!

 

Daniel





Did I answer your question? Mark my post as a solution!

Proud to be a Super User!


My course: Introduction to Developing Power BI Visuals


On how to ask a technical question, if you really want an answer (courtesy of SQLBI)




View solution in original post

2 REPLIES 2
AdamWhittaker
Helper I
Helper I

@dm-p Thanks for the help, it worked. Looks like i just missed the select part in:

                "categories": {
                    "select": [

 

dm-p
Super User
Super User

Hi @AdamWhittaker,

 

Because categories can have other potential properties (like dataReductionAlgorithm), you would add a select property with an array to your existing object and include the data roles there (like you have done for values). The following should work based on your above definition (or get you close to it - it's a valid pattern that I have used in other visuals):

 

{
    "dataViewMappings": [
        {
            "categorical": {
                "categories": {
                    "select": [
                        {
                            "for": {
                                "in": "resourceId"
                            }
                        },
                        {
                            "for": {
                                "in": "resourceName"
                            }
                        },
                        {
                            "for": {
                                "in": "territory"
                            }
                        },
                        {
                            "for": {
                                "in": "eventColor"
                            }
                        }
                    ]
                },
                "values": {
                    "select": [
                        {
                            "bind": {
                                "to": "eventId"
                            }
                        },
                        {
                            "bind": {
                                "to": "eventName"
                            }
                        },
                        {
                            "bind": {
                                "to": "manager"
                            }
                        },
                        {
                            "bind": {
                                "to": "appointmentNumber"
                            }
                        },
                        {
                            "bind": {
                                "to": "status"
                            }
                        },
                        {
                            "bind": {
                                "to": "description"
                            }
                        },
                        {
                            "bind": {
                                "to": "startDate"
                            }
                        },
                        {
                            "bind": {
                                "to": "endDate"
                            }
                        }
                    ]
                }
            }
        }
    ]
}

 

Good luck!

 

Daniel





Did I answer your question? Mark my post as a solution!

Proud to be a Super User!


My course: Introduction to Developing Power BI Visuals


On how to ask a technical question, if you really want an answer (courtesy of SQLBI)




Helpful resources

Announcements
Las Vegas 2025

Join us at the Microsoft Fabric Community Conference

March 31 - April 2, 2025, in Las Vegas, Nevada. Use code MSCUST for a $150 discount!

Jan25PBI_Carousel

Power BI Monthly Update - January 2025

Check out the January 2025 Power BI update to learn about new features in Reporting, Modeling, and Data Connectivity.

Jan NL Carousel

Fabric Community Update - January 2025

Find out what's new and trending in the Fabric community.

Top Solution Authors
Top Kudoed Authors