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ref #65, new formula function: DGET

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xuri 2022-07-03 15:31:24 +08:00
parent 695db4eae0
commit d74adcbb15
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2 changed files with 31 additions and 0 deletions
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27
calc.go
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@ -433,6 +433,7 @@ type formulaFuncs struct {
// DEGREES
// DELTA
// DEVSQ
// DGET
// DISC
// DMAX
// DMIN
@ -18173,6 +18174,32 @@ func (fn *formulaFuncs) DCOUNTA(argsList *list.List) formulaArg {
return fn.dcount("DCOUNTA", argsList)
}
// DGET function returns a single value from a column of a database. The record
// is selected via a set of one or more user-specified criteria. The syntax of
// the function is:
//
// DGET(database,field,criteria)
//
func (fn *formulaFuncs) DGET(argsList *list.List) formulaArg {
if argsList.Len() != 3 {
return newErrorFormulaArg(formulaErrorVALUE, "DGET requires 3 arguments")
}
database := argsList.Front().Value.(formulaArg)
field := argsList.Front().Next().Value.(formulaArg)
criteria := argsList.Back().Value.(formulaArg)
db := newCalcDatabase(database, field, criteria)
if db == nil {
return newErrorFormulaArg(formulaErrorVALUE, formulaErrorVALUE)
}
value := newErrorFormulaArg(formulaErrorVALUE, formulaErrorVALUE)
if db.next() {
if value = db.value(); db.next() {
return newErrorFormulaArg(formulaErrorNUM, formulaErrorNUM)
}
}
return value
}
// DMAX function finds the maximum value in a field (column) in a database for
// selected records only. The records to be included in the calculation are
// defined by a set of one or more user-specified criteria. The syntax of the

4
calc_test.go
View File

@ -4632,6 +4632,7 @@ func TestCalcDatabase(t *testing.T) {
"=DCOUNTA(A4:E10,\"Profit\",A1:F2)": "2",
"=DCOUNTA(A4:E10,\"Tree\",A1:F2)": "2",
"=DCOUNTA(A4:E10,\"Age\",A2:F3)": "0",
"=DGET(A4:E6,\"Profit\",A1:F3)": "96",
"=DMAX(A4:E10,\"Tree\",A1:F3)": "0",
"=DMAX(A4:E10,\"Profit\",A1:F3)": "96",
"=DMIN(A4:E10,\"Tree\",A1:F3)": "0",
@ -4665,6 +4666,9 @@ func TestCalcDatabase(t *testing.T) {
"=DCOUNTA(A4:E10,NA(),A1:F2)": "#VALUE!",
"=DCOUNTA(A4:E4,,A1:F2)": "#VALUE!",
"=DCOUNTA(A4:E10,\"x\",A2:F3)": "#VALUE!",
"=DGET()": "DGET requires 3 arguments",
"=DGET(A4:E5,\"Profit\",A1:F3)": "#VALUE!",
"=DGET(A4:E10,\"Profit\",A1:F3)": "#NUM!",
"=DMAX()": "DMAX requires 3 arguments",
"=DMAX(A4:E10,\"x\",A1:F3)": "#VALUE!",
"=DMIN()": "DMIN requires 3 arguments",