dataSourceTable

The dataSourceTable widget creates a table that allows users to select one or more data sources, i.e., uploaded data packages.

It is most useful for apps that do not have samples, or if your app can assume (and verify) a specific structure for the samples in a given data package.

The table is wrapped in a shinydashboard box().

dataSourceTableUI options

The dataSourceTableUI function takes the following arguments in addition to ‘id’:

# dataSourceTable_ui.R
dataSourceTableUI(
    id, 
    title, 
    width = 12, 
    collapsible = FALSE
)

where:

• title = the title for the box
• width = the width of the box in bootstrap grid units
• collapsible = whether to allow the user to hide/close the box contents

dataSourceTableServer options

The dataSourceTableServer function takes the following arguments in addition to ‘id’:

# dataSourceTable_server.R
dataSourceTableServer <- function(
    id, 
    selection = "single"
) 

where:

• selection = either ‘single’ or ‘multiple’ to determine how many data sources can be selected at a time

dataSourceTableServer return values

The module returns a reactive as follows:

# dataSourceTable_server.R
selectedSourceIds

where selectedSourceIds is a reactive that returns names(sources()[rows]), i.e., the unique ids of the selected subset of the sources outcome returned by appStep module sourceFileUpload. Those sourceId(s) can be used to recover files from data packages, etc.

Using the widget

dataSourceTable is a simple widget. Just place it on a page by calling dataSourceTableUI in your module UI function, activate it by calling dataSourceTableServer in your module server function, and react to the selectedSourceIds return value.

Additional references

For more detailed views of the module’s code, see:

• mdi-apps-framework : dataSourceTable