Fix download

app.R

@@ -81,7 +81,7 @@ ui <- dashboardPage(
             #menuItem("Habitats", tabName = "3", icon = icon("atlas")),
             #menuItem("Ingestion", tabName = "3", icon = icon("utensils")),
             selectInput("modelSelect", "Select MESO model", choices = c(""), selected = NULL, multiple = FALSE),
-            #downloadButton("download", "", icon = icon("download")),
+            downloadButton("download", "", icon = icon("download")),
             uiOutput("pressureList")
         )
       ),
@@ -621,32 +621,9 @@ server <- function(input, output, session) {
   })
 
 
-  export <- function(model) {
+  export <- function(model, fPath) {
 
-    #Get the network graph
-    l1 <- orca(prepPlot("ba", "Bio-Assemblage"), "tmp/layer1.png")
-    l2 <- orca(prepPlot("op", "Output Processes"),"tmp/layer2.png")
-    l3 <- orca(prepPlot("es", "Ecosystem Services"), "tmp/layer3.png")
-
-    #Save pressure list, confidence levels, node and edge tables in xlsx
-    l <- list(
-      pressures = .selections$pressStatus,
-      nodes = model$p_es$nodes,
-      edges = model$p_es$edges,
-      settings = as.data.frame(cbind(names(.resistanceScores), .resistanceScores), stringsAsFactors = FALSE)
-    )
-
-    xl <- write.xlsx(l, "tmp/dataset.xlsx")
-
-    print("saving xlsx file export tmp/dataset.xlsx")
-
-    zipFile <- zipr(paste0("tmp/MESO-", format(Sys.time(), "%m%d_%H%M"), ".zip"), c("tmp/layer1.png", "tmp/layer2.png", "tmp/layer3.png", "tmp/dataset.xlsx"))
-
-    print(paste("zip file complete", zipFile))
-    file.remove("tmp/layer1.png")
-    file.remove("tmp/layer2.png")
-    file.remove("tmp/layer3.png")
-    file.remove("tmp/dataset.xlsx")
+    
     return(zipFile)
   }
 
@@ -660,19 +637,49 @@ server <- function(input, output, session) {
   )
 
   output$download <- downloadHandler(
-    filename = paste0("MESO-", format(Sys.time(), "%m%d_%H%M"), ".zip"),
+    filename = function() {paste0("MESO-", format(Sys.time(), "%m%d_%H%M"), ".zip")},
     content = function(file) {
-      #showModal(
-      #  modalDialog(
-      #    fluidRow(
-      #      column(width = 12) %>% withSpinner(type = 5, proxy.height = "200px")
-      #    ), 
-      #    footer=div()
-      #  )
-      #)
-      fName <- export(modelList[[.selections$model]])
-      file.copy(fName, file)
-      #removeModal()
+      showModal(
+        modalDialog(
+          fluidRow(
+            column(width = 12) %>% withSpinner(type = 5, proxy.height = "200px")
+          ), 
+          footer=div()
+        )
+      )
+      
+      oldDir <- getwd()
+      
+      tmp <- tempfile("")
+      
+      print(tmp)
+      dir.create(tmp)
+      
+      setwd(tmp)
+  
+      #Get the network graph
+      l1 <- orca(prepPlot("ba", "Bio-Assemblage"), "layer1.png")
+      l2 <- orca(prepPlot("op", "Output Processes"),"layer2.png")
+      l3 <- orca(prepPlot("es", "Ecosystem Services"),"layer3.png")
+      
+      
+      #Save pressure list, confidence levels, node and edge tables in xlsx
+      l <- list(
+        pressures = .selections$pressStatus,
+        nodes = modelList[[.selections$model]]$p_es$nodes,
+        edges = modelList[[.selections$model]]$p_es$edges,
+        settings = as.data.frame(cbind(names(.resistanceScores), .resistanceScores), stringsAsFactors = FALSE)
+      )
+      xl <- write.xlsx(l,  "dataset.xlsx")
+    
+      zipFile <- zipr(file, c("layer1.png", "layer2.png", "layer3.png", "dataset.xlsx"))
+      
+      print(paste("zip file complete", zipFile))
+
+      setwd(oldDir)
+      unlink(tmp)
+      
+      removeModal()
     },
     contentType = "application/zip"
   )