From c39ecf1d158fd8affdc8f11e2499850b18009c7f Mon Sep 17 00:00:00 2001
From: "Andrew G. Brown" <andrew.g.brown@ca.usda.gov>
Date: Wed, 30 Sep 2020 10:25:41 -0700
Subject: [PATCH] rebuildSPC: enforce aqp_df_class; possibly changed by
 aqp_df_class<- #157

---
 R/Class-SoilProfileCollection.R | 13 +++++++++++++
 R/rebuildSPC.R                  |  2 +-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/R/Class-SoilProfileCollection.R b/R/Class-SoilProfileCollection.R
index 15173119d..2b55ed9b8 100644
--- a/R/Class-SoilProfileCollection.R
+++ b/R/Class-SoilProfileCollection.R
@@ -1316,6 +1316,19 @@ setMethod(f = 'aqp_df_class', signature(object = 'SoilProfileCollection'),
 
             return(u)
           })
+if (!isGeneric("aqp_df_class<-"))
+  setGeneric("aqp_df_class<-", function(object, ...)
+    standardGeneric("aqp_df_class<-")) 
+#' @param value "data.frame", "data.table" or "tibble"
+#' @rdname aqp_df_class
+setReplaceMethod("aqp_df_class", signature(object = "SoilProfileCollection"),
+                 function(object, value) {
+                   if (!value %in% c('data.frame',"data.table","tibble"))
+                     stop("aqp_df_class metadata entry must be data.frame, data.table or tibble", 
+                          call.=FALSE)
+                   metadata(object)$aqp_df_class <- value
+                   return(object)
+                 })
 
 #' Get depth units from metadata
 #'
diff --git a/R/rebuildSPC.R b/R/rebuildSPC.R
index b8ca088bb..fc7c38f1f 100644
--- a/R/rebuildSPC.R
+++ b/R/rebuildSPC.R
@@ -6,7 +6,7 @@ rebuildSPC <- function(x) {
   x.list <- suppressWarnings(as(x, 'list'))
 
   # seed object for new SPC
-  res <- x.list$horizons
+  res <- .as.data.frame.aqp(x.list$horizons, aqp_df_class(x))
 
   # init SPC from pieces
   # note: using depths<- because it will generate a horizon ID