Calendar: Multiple data sources feeding to one calendar

Hi guys!

I have multiple data sources (for different event types) that each contains date information that needs to be displayed on a single calendar.

I can get this to work for one data source but not sure how to collate them, is it possible?

My assumption would be another data source that was related to each other data sources events? (seems like a lot)

PS: Is there a way to display weekly or monthly views on the mobile app?

Thanks in advance.

Hi Nathan :wave: Here is how I would do it. I’ll would first bring my two date columns into the same table, I’ll assume you have done that. Now you need to merge/collate these two columns: one list of dates below the other and we need values (not arrays).

You can use the screenshot below to follow along:

  • RowID column
  • RowIDsArray column: Do a lookup on the RowID column.
  • RowIDIndex column: Do a “Find element index” on the RowIDsArray column.
  • We already have our two basic date columns: Dates1, Dates2
  • Dates1Array: Do a lookup on the Dates1 column.
  • Dates2Array: Do a lookup on the Dates2 column.
  • Now let’s merge Dates1Array and Dates2Array: use the “Make array” computed column (the /Array/Append array computed column would work too).
  • We now have merged/collated our dates into an array. Each row of Dates1+2Array column is exactly the same. Now let’s transpose this array vertically into values.
  • Dates1+2Array->List column. Use a single value computed column: get “from start”, row “RowIDIndex”, from “Dates1+2Array”. This will take the 1st element (index 0), then 2nd element (index 1) and so on of the elements in the array and turn them into a value.
  • Note: If Dates1 has m dates and Dates2 n dates, we will need m+n rows in our table to make this work.
  • Apply the calendar collection to the Dates1+2Array->List column.

Data editor


Display monthly/weekly view

I don’t know about Apps, but on Pages the responsive mobile version allows the user to toggle nicely between the daily, monthly and weekly views.


Are those different event types differ a lot in their structure? If not, I would try to combine them into one table, and differ them by an “event type” column.

Afternoon Nathanael,

Thanks for your detailed response. I am however still struggling to wrap my head around the process. To make it simpler, I’ll add some images below and you can let me know if it’s still workable or not.

Some examples of the data:

I presume I would need to pull almost all the data into a single database?

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This would possibly be the easiest solution but I would lose the “list relation” for each appointment type which is quite critical.

You can still create relations for each of those types to use the list relation, right?

I think you can keep your tables separate if that’s the setup you chose. The method above to merge your lists of dates should work fine. I agree with Thinh, after merging the lists, you could set up relations to pull in (lookup) further data.

I would recommend you try. You could duplicate your app (or tables) and practice first before breaking anything.

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I was thinking about this. Instead of concatenating lists of dates like Uzo and I showed you, you might was to concatenate lists of associated RowIDs. This would be to account for different rows in different tables that would have the same dates. I would then make sure that each table table has a native RowID basic column (instead of doing it by hand which you seem to have done).