Variable associated to Data Sources
Introduction
Classic variables are by 'themselves' without reference to external context.
Variable are global, when you set a variable based on a tap of the row it has no connection to the row after it has been set.
But what if you need to have a variable associated to a data source?
DSVAR
DSVAR are variable associated to a Data Source.
DSVAR are variable associated to each row of a Data Source.
Creating a DSVAR
The Set a Variable action take an optional data source parameter that lets you set a variable that's linked to a row in a data source.
Therefore, DSVAR are created using the classic 'Set Variable' action
But, contrary to standard variable, a Data Source is selected.
Selecting the Data Source automatically associate that variable to the current record of the selected data source.
Using a DSVAR
DSVAR are retrieved using the DSVAR exander.
The format for dsvar: expanders is similar to classic ds: expanders:
[[dsvar:/feed/table/MyVar]]
Original ds expander is: [[ds:/feed/table/field]]
- field is replaced but the name of the variable, in our example: MyVar
- ds is replaced by dsvar
Note: The original ds expander is automatically generated when you select that datasource in the Editor
In our example we associated our DSVAR to a feed called 'Saved Photo'
When select that feed in our Editor it looks like this:
In our example we associated our DSVAR to a feed called 'Saved Photo'
When select that feed in our Editor it looks like this:
[[ds:/Saved Photos (Cloud Collection)/record/name]]
to use DSVAR we change ds and the name to:
[[dsvar:/Saved Photos (Cloud Collection)/record/MyVar]]
to use DSVAR we change ds and the name to:
[[dsvar:/Saved Photos (Cloud Collection)/record/MyVar]]