This post expands upon the post on {distill} Comments. It includes a method to reply to comments and store comments and replies in an hierarchical manner. In the previous post I covered how we could use RStudio Connect to manage commenting on a static blog. Here we extend it, adding a way to reply to comments and store …

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Following on from a post on including a contact form on a {distill} site hosted on RStudio Connect, here's a post on how to include comments in blog posts. Commenting consists of two parts - a way to retrieve comments that belong to a page and a form to enter new comments. In this implementation I connect a {distill} …

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An earlier post described a multiwindow shiny app that demonstrated how three shiny apps could be handled by a fourth with data passing between them. This extends the concept, running all apps on RStudio Connect and manages the communication using the {pins} library. Data is passed between the apps using a json file …

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Purpose Can we use use RStudio Connect to build an internal contact form on a {distill} website? {distill} is a great R library for building static websites and blogs but has the same limitations of other static websites, namely no server-side programming. This means that implementing a contact form requires using a …

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This is an initial concept of a framework for multiwindow shiny apps. Shiny is a great R package for building an interactive, web-based, graphical UI using R. It does, however, suffer from some limitations. One of these is the fact that a Shiny app runs in a single browser window. To make a more complex interface we …

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The sendSweetAlert function from the shinyWidgets package is a great way to communicate behavior to an end-user. As of version 0.4.9 shinyWidgets now uses SweetAlert2 which is no longer compatible with Internet Explorer thus breaking historical apps which use this feature. This is due to the fact that IE does not …

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Sometimes it's useful to mimic a button press in a shiny app when the Enter key is pressed, for example when entering a password. This has been documented before and works well for most situations but fails when the button widget is housed within renderUI. Here's an alternative that works wherever the password input …

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Method One - Does not work with IE CSS variables are a powerful way to make wholesale changes to the style throughout an entire document. They are set using a custom notation --variable_name and accessed throughout the document using var(--variable_name). With a little javascript these variables can be used in Shiny …

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The datatable widget is a powerful table-building tool used to display data in shiny apps. It can use many of the datatable plugins and extensions but a small javascript hack is needed for the rowReorder extension which allows rows to be reordered using drag and drop. In the example below, the rowReorder options are …

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Here’s an example of how to embed subtables in a datatable. It’s an enhancement of the child rows example found at https://rstudio.github.io/DT/002-rowdetails.html and works by storing JSON versions of subtables as a column in the main table dataframe. The current release of the DT library converts the JSON format into …

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