feature: implement in for sqlite databases (#276)

* feat: implement in for sqlite databases

* chore: update method description for Contains and In

json.go

@@ -457,15 +457,15 @@ type JSONArrayExpression struct {
 	equalsValue interface{}
 }
 
-// Contains checks if the column[keys] contains the value given. The keys parameter is only supported for MySQL.
+// Contains checks if column[keys] contains the value given. The keys parameter is only supported for MySQL and SQLite.
 func (json *JSONArrayExpression) Contains(value interface{}, keys ...string) *JSONArrayExpression {
 	json.contains = true
 	json.equalsValue = value
 	json.keys = keys
 	return json
 }
 
-// In checks if columns[keys] is in the array value given. This method is only supported for MySQL.
+// In checks if columns[keys] is in the array value given. This method is only supported for MySQL and SQLite.
 func (json *JSONArrayExpression) In(value interface{}, keys ...string) *JSONArrayExpression {
 	json.in = true
 	json.keys = keys
@@ -521,6 +521,34 @@ func (json *JSONArrayExpression) Build(builder clause.Builder) {
 					builder.AddVar(stmt, jsonQueryJoin(json.keys))
 				}
 				builder.WriteString(") > 0")
+			case json.in:
+				builder.WriteString("CASE WHEN json_type(")
+				builder.WriteQuoted(json.column)
+				if len(json.keys) > 0 {
+					builder.WriteByte(',')
+					builder.AddVar(stmt, jsonQueryJoin(json.keys))
+				}
+				builder.WriteString(") = 'array' THEN NOT EXISTS(SELECT 1 FROM json_each(")
+				builder.WriteQuoted(json.column)
+				if len(json.keys) > 0 {
+					builder.WriteByte(',')
+					builder.AddVar(stmt, jsonQueryJoin(json.keys))
+				}
+				builder.WriteString(") WHERE value NOT IN ")
+				builder.AddVar(stmt, json.equalsValue)
+				builder.WriteString(") ELSE ")
+				if len(json.keys) > 0 {
+					builder.WriteString("json_extract(")
+				}
+				builder.WriteQuoted(json.column)
+				if len(json.keys) > 0 {
+					builder.WriteByte(',')
+					builder.AddVar(stmt, jsonQueryJoin(json.keys))
+					builder.WriteByte(')')
+				}
+				builder.WriteString(" IN ")
+				builder.AddVar(stmt, json.equalsValue)
+				builder.WriteString(" END")
 			}
 		case "postgres":
 			switch {

json_test.go

@@ -514,16 +514,14 @@ func TestJSONArrayQuery(t *testing.T) {
 		}
 		AssertEqual(t, len(retMultiple), 1)
 
-		if SupportedDriver("mysql") {
-			if err := DB.Where(datatypes.JSONArrayQuery("config").In([]string{"c", "a"})).Find(&retMultiple).Error; err != nil {
-				t.Fatalf("failed to find params with json value, got error %v", err)
-			}
-			AssertEqual(t, len(retMultiple), 1)
+		if err := DB.Where(datatypes.JSONArrayQuery("config").In([]string{"c", "a"})).Find(&retMultiple).Error; err != nil {
+			t.Fatalf("failed to find params with json value, got error %v", err)
+		}
+		AssertEqual(t, len(retMultiple), 1)
 
-			if err := DB.Where(datatypes.JSONArrayQuery("config").In([]string{"c", "d"}, "test")).Find(&retMultiple).Error; err != nil {
-				t.Fatalf("failed to find params with json value and keys, got error %v", err)
-			}
-			AssertEqual(t, len(retMultiple), 1)
+		if err := DB.Where(datatypes.JSONArrayQuery("config").In([]string{"c", "d"}, "test")).Find(&retMultiple).Error; err != nil {
+			t.Fatalf("failed to find params with json value and keys, got error %v", err)
 		}
+		AssertEqual(t, len(retMultiple), 1)
 	}
 }