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app.R
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app.R
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library(shiny)
library(shinythemes)
library(dplyr)
source("helpers/format.R")
source("helpers/utils.R")
source("modules/select_module.R")
source("modules/filter_module.R")
source("modules/bookmark_module.R")
source("modules/summarize_module.R")
bmi <- bookmark_init("db/bookmarks.sqlite")
ui <- function(req) {
tagList(
# Bootstrap header
tags$header(class = "navbar navbar-default navbar-static-top",
tags$div(class = "container-fluid",
tags$div(class = "navbar-header",
tags$div(class = "navbar-brand", "R/Pharma demo")
),
# Links for restoring/loading sessions
tags$ul(class = "nav navbar-nav navbar-right",
tags$li(
bookmark_modal_load_ui("bookmark")
),
tags$li(
bookmark_modal_save_ui("bookmark")
)
)
)
),
fluidPage(theme = shinythemes::shinytheme("united"),
sidebarLayout(position = "right",
column(width = 4,
wellPanel(
select_vars_ui("select")
),
wellPanel(
filter_ui("filter")
),
wellPanel(
p(downloadButton("download", "Download report", class = "btn-primary")),
tags$details(
tags$summary(style = "outline: none; cursor: pointer;", "Code preview"),
verbatimTextOutput("code")
)
)
),
mainPanel(
tabsetPanel(id = "tabs",
tabPanel("Plot", tags$br(),
plotOutput("plot", height = 600)
),
tabPanel("Summary", tags$br(),
verbatimTextOutput("summary")
),
tabPanel("Table", tags$br(),
tableOutput("table")
)
)
)
)
)
)
}
server <- function(input, output, session) {
callModule(bookmark_mod, "bookmark", bmi,
thumbnailFunc = function() { do_plot() }
)()
datasetExpr <- reactive(expr(mtcars %>% mutate(cyl = factor(cyl))))
filterExpr <- callModule(filter_mod, "filter", datasetExpr)
selectExpr <- callModule(select_vars, "select",
reactive(names(eval_clean(datasetExpr()))), filterExpr)
data <- reactive({
resultExpr <- selectExpr()
df <- eval_clean(resultExpr)
validate(need(nrow(df) > 0, "No data matches the filter"))
df
})
output$table <- renderTable({
data()
}, rownames = TRUE)
do_plot <- function() {
plot(data())
}
output$plot <- renderPlot({
do_plot()
})
output$summary <- renderPrint({
summary(data())
})
output$code <- renderText({
format_tidy_code(selectExpr())
})
output$download <- downloadHandler(
filename = "report.zip",
content = function(file) {
withProgress(message = "Compiling report...", value = NULL,
make_report_bundle("rmd-template.txt",
title = "My great report",
author = "Joe Cheng",
description = "This is a high quality report!",
body_expr = expr({
df <- !!selectExpr()
plot(df)
summary(df)
knitr::kable(df)
}),
packages = c("dplyr"),
files = NULL,
output_file = file
)
)
}
)
}
enableBookmarking("server")
shinyApp(ui, server)