add conversion support from French number string to number. (#737)

Author: wolfcon

MJExtension/NSObject+MJKeyValue.h

@@ -47,6 +47,10 @@
  */
 + (NSDictionary *)mj_objectClassInArray;
 
+
+/** 特殊地区在字符串格式化数字时使用 */
++ (NSLocale *)mj_numberLocale;
+
 /**
  *  旧值换新值，用于过滤字典中的值
  *

MJExtension/NSObject+MJKeyValue.m

@@ -100,6 +100,11 @@ - (instancetype)mj_setKeyValues:(id)keyValues context:(NSManagedObjectContext *)
     NSArray *allowedPropertyNames = [clazz mj_totalAllowedPropertyNames];
     NSArray *ignoredPropertyNames = [clazz mj_totalIgnoredPropertyNames];
 
+    NSLocale *numberLocale = nil;
+    if ([self.class respondsToSelector:@selector(mj_numberLocale)]) {
+        numberLocale = self.class.mj_numberLocale;
+    }
+    
     //通过封装的方法回调一个通过运行时编写的，用于返回属性列表的方法。
     [clazz mj_enumerateProperties:^(MJProperty *property, BOOL *stop) {
         @try {
@@ -175,7 +180,8 @@ - (instancetype)mj_setKeyValues:(id)keyValues context:(NSManagedObjectContext *)
                     NSString *oldValue = value;
 
                     // NSString -> NSDecimalNumber, 使用 DecimalNumber 来转换数字, 避免丢失精度以及溢出
-                    NSDecimalNumber *decimalValue = [NSDecimalNumber decimalNumberWithString:oldValue locale:nil];
+                    NSDecimalNumber *decimalValue = [NSDecimalNumber decimalNumberWithString:oldValue
+                                                                                      locale:numberLocale];
 
                     // 检查特殊情况
                     if (decimalValue == NSDecimalNumber.notANumber) {

MJExtensionDemo.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		0130EE80233C56D8008D2386 /* MJFrenchUser.m in Sources */ = {isa = PBXBuildFile; fileRef = 0130EE7F233C56D8008D2386 /* MJFrenchUser.m */; };
 		2D2DB9CD2317DA07005A689E /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 2D2DB9CC2317DA07005A689E /* AppDelegate.m */; };
 		2D2DB9D02317DA07005A689E /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 2D2DB9CF2317DA07005A689E /* ViewController.m */; };
 		2D2DB9D32317DA07005A689E /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 2D2DB9D12317DA07005A689E /* Main.storyboard */; };
@@ -83,6 +84,8 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		0130EE7E233C56D8008D2386 /* MJFrenchUser.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = MJFrenchUser.h; sourceTree = "<group>"; };
+		0130EE7F233C56D8008D2386 /* MJFrenchUser.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = MJFrenchUser.m; sourceTree = "<group>"; };
 		2D2DB9C82317DA07005A689E /* MJExtensionDemo.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = MJExtensionDemo.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		2D2DB9CB2317DA07005A689E /* AppDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
 		2D2DB9CC2317DA07005A689E /* AppDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
@@ -275,6 +278,8 @@
 				2D2DBA752317DBDF005A689E /* MJExtensionConfig.m */,
 				2D2DBA762317DBDF005A689E /* MJBook.h */,
 				2D2DBA772317DBDF005A689E /* MJPerson.m */,
+				0130EE7E233C56D8008D2386 /* MJFrenchUser.h */,
+				0130EE7F233C56D8008D2386 /* MJFrenchUser.m */,
 			);
 			path = Model;
 			sourceTree = "<group>";
@@ -463,6 +468,7 @@
 				2D2DBA822317DBE0005A689E /* MJStatus.m in Sources */,
 				2D2DBA832317DBE0005A689E /* MJAd.m in Sources */,
 				2D2DBA802317DBE0005A689E /* MJUser.m in Sources */,
+				0130EE80233C56D8008D2386 /* MJFrenchUser.m in Sources */,
 				2D2DBA852317DBE0005A689E /* MJPerson.m in Sources */,
 				2D2DBA7B2317DBE0005A689E /* MJBox.m in Sources */,
 				2D2DBA582317DBB9005A689E /* MJExtensionTests.m in Sources */,

MJExtensionTests/MJExtensionTests.m

@@ -17,6 +17,7 @@
 #import "MJBook.h"
 #import "MJBox.h"
 #import <CoreData/CoreData.h>
+#import "MJFrenchUser.h"
 
 @interface MJExtensionTests : XCTestCase
 
@@ -65,24 +66,24 @@ - (void)testJSON2Model {
     XCTAssert(user.collect == 40);
     XCTAssert(!user.alien);
 }
-
+// 特殊模型, 数字为法语逗号为小数点的分隔符情况
 - (void)testJSON2NumberModel {
     // 1.定义一个字典
     NSDictionary *dict = @{
                            @"age" : @"20",
                            @"height" : @1.55,
-                           @"money" : @"100.9",
+                           @"money" : @"100,9",
                            @"gay" : @"",
-                           @"speed" : @"120.5",
+                           @"speed" : @"120,5",
                            @"identifier" : @"3443623624362",
-                           @"price" : @"20.3",
+                           @"price" : @"20,3",
                            @"like" : @"20个",
                            @"collect" : @"收藏5",
                            @"rich" : @"hehe",
                            };
 
-    // 2.将字典转为MJUser模型
-    MJUser *user = [MJUser mj_objectWithKeyValues:dict];
+    // 2.将字典转为MJFrenchUser模型
+    MJFrenchUser *user = [MJFrenchUser mj_objectWithKeyValues:dict];
 
     XCTAssert(user.age == 20);
     XCTAssert(user.height.doubleValue == 1.55);

MJExtensionTests/Model/MJFrenchUser.h

@@ -0,0 +1,17 @@
+//
+//  MJFrenchUser.h
+//  MJExtensionTests
+//
+//  Created by Frank on 2019/9/26.
+//  Copyright © 2019 MJ Lee. All rights reserved.
+//
+
+#import "MJUser.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface MJFrenchUser : MJUser
+
+@end
+
+NS_ASSUME_NONNULL_END

MJExtensionTests/Model/MJFrenchUser.m

@@ -0,0 +1,17 @@
+//
+//  MJFrenchUser.m
+//  MJExtensionTests
+//
+//  Created by Frank on 2019/9/26.
+//  Copyright © 2019 MJ Lee. All rights reserved.
+//
+
+#import "MJFrenchUser.h"
+
+@implementation MJFrenchUser
+
++ (NSLocale *)mj_numberLocale {
+    return [NSLocale localeWithLocaleIdentifier:@"fr_FR"];
+}
+
+@end