restored OptFieldTypeInt single arg version

orm.go

@@ -755,16 +755,19 @@ func OptFieldTypeSet(cacheType CacheType, cacheSize int) FieldOption {
 
 // OptFieldTypeInt adds an integer field.
 // No arguments: min = min_int, max = max_int
+// 1 argument: min = limit[0], max = max_int
 // 2 or more arguments: min = limit[0], max = limit[1]
 func OptFieldTypeInt(limits ...int64) FieldOption {
 	min := int64(math.MinInt64)
 	max := int64(math.MaxInt64)
 
-	if len(limits) != 0 && len(limits) != 2 {
-		panic("error: OptFieldTypInt accepts or 2 arguments")
+	if len(limits) > 2 {
+		panic("error: OptFieldTypInt accepts at most 2 arguments")
 	}
-	if len(limits) == 2 {
+	if len(limits) > 0 {
 		min = limits[0]
+	}
+	if len(limits) > 1 {
 		max = limits[1]
 	}
 

orm_test.go

@@ -886,6 +886,14 @@ func TestIntFieldOptions(t *testing.T) {
 	}
 	compareFieldOptions(t, field.Options(), FieldTypeInt, TimeQuantumNone, CacheTypeDefault, 0, -10, 100)
 
+	field = sampleIndex.Field("int-field2", OptFieldTypeInt(-10))
+	jsonString = field.options.String()
+	targetString = fmt.Sprintf(`{"options":{"type":"int","min":-10,"max":%d}}`, math.MaxInt64)
+	if sortedString(targetString) != sortedString(jsonString) {
+		t.Fatalf("`%s` != `%s`", targetString, jsonString)
+	}
+
+	compareFieldOptions(t, field.Options(), FieldTypeInt, TimeQuantumNone, CacheTypeDefault, 0, -10, math.MaxInt64)
 	field = sampleIndex.Field("int-field3", OptFieldTypeInt())
 	jsonString = field.options.String()
 	targetString = fmt.Sprintf(`{"options":{"type":"int","min":%d,"max":%d}}`, math.MinInt64, math.MaxInt64)