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option to hide unused template worksheets #36

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option to hide unused template worksheets #36

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22 changes: 17 additions & 5 deletions src/excel_templates/build.clj
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Original file line number Diff line number Diff line change
Expand Up @@ -185,18 +185,21 @@ If there are any nil values in the source collection, the corresponding cells ar
"Build an output file with all the rows stripped out.
This keeps all the styles and annotations while letting us write the
spreadsheet using streaming so it can be arbitrarily large"
[template-file output-file]
[template-file output-file unused]
(let [tmpfile (create-temp-xlsx-file "excel-template")]
(try
(io/copy template-file tmpfile)
(with-open [pkg (OPCPackage/open tmpfile)]
(let [wb (XSSFWorkbook. pkg)]
(doseq [sheet-num (range (.getNumberOfSheets wb))]
(let [sheet (.getSheetAt wb sheet-num)
nrows (inc (.getLastRowNum sheet))]
nrows (inc (.getLastRowNum sheet))
veryHidden 2]
(doseq [row-num (reverse (range nrows))]
(when-let [row (.getRow sheet row-num)]
(.removeRow sheet row)))))
(.removeRow sheet row)))
(if (= :hide unused)
(.setSheetHidden wb sheet-num veryHidden))))
;; Write the resulting output Workbook
(with-open [fos (FileOutputStream. output-file)]
(.write wb fos))))
Expand Down Expand Up @@ -484,7 +487,7 @@ If there are any nil values in the source collection, the corresponding cells ar

(defn render-to-file
"Build a report based on a spreadsheet template"
[template-file output-file replacements]
[template-file output-file replacements & {:keys [unused] :or {unused :leave}}]
(let [tmpfile (File/createTempFile "excel-output" ".xlsx")
tmpcopy0 (File/createTempFile "excel-template-firstcopy" ".xlsx")
tmpcopy (File/createTempFile "excel-template-copy" ".xlsx")
Expand All @@ -498,7 +501,7 @@ If there are any nil values in the source collection, the corresponding cells ar
(let [chart-data (charts-from-file tmpcopy0)]
(filter-zip-file tmpcopy0 tmpcopy (c/chart-removal-rules chart-data))
(create-missing-sheets! tmpcopy replacements chart-data))
(build-base-output tmpcopy tmpfile)
(build-base-output tmpcopy tmpfile unused)
(let [replacements (replacements-by-sheet-name replacements)
translation-table (fo/build-translation-tables replacements)
replacements (expand-replacements replacements)]
Expand All @@ -524,6 +527,9 @@ If there are any nil values in the source collection, the corresponding cells ar
wb (if src-has-formula? wb (SXSSFWorkbook. wb))]
(try
(let [sheet (.getSheetAt wb sheet-num)]
(if (and (= unused :hide)
(seq sheet-data))
(.setSheetHidden wb sheet-num 0)) ; unhidden
;; loop through the rows of the template, copying
;; from the template or injecting data rows as
;; appropriate
Expand Down Expand Up @@ -588,4 +594,10 @@ If there are any nil values in the source collection, the corresponding cells ar
output-file "/tmp/bar.xlsx"
data {"Sheet1" {2 [[nil "old!"]]}}]
(render-to-file template-file output-file data)
(sh "libreoffice" "--calc" output-file))

(let [template-file "foo.xlsx"
output-file "/tmp/bar.xlsx"
data {"Sheet1" {2 [[nil "old!"]]}}]
(render-to-file template-file output-file data :unused :hide)
(sh "libreoffice" "--calc" output-file)))