In tree save/edit, post only writable fields

OpenTreeMap/src/OTM/Controllers/OTMTreeDetailViewController.m

@@ -647,6 +647,7 @@ - (void)toggleEditMode:(BOOL)saveChanges
         if (saveChanges) {
             OTMLoginManager* loginManager = [SharedAppDelegate loginManager];
             OTMUser *user = loginManager.loggedInUser;
+            NSMutableDictionary *writableData = [self getWritableFieldData];
 
             if (self.data[@"plot"][@"id"] == nil) {
                 // No 'id' parameter indicates that this is a new plot/tree
@@ -655,7 +656,8 @@ - (void)toggleEditMode:(BOOL)saveChanges
                 [[AZWaitingOverlayController sharedController] showOverlayWithTitle:@"Saving"];
 
                 NSArray *pendingImageData = [self stripPendingImageData];
-                [[[OTMEnvironment sharedEnvironment] api] addPlotWithOptionalTree:data user:user callback:^(id json, NSError *err){
+                [[[OTMEnvironment sharedEnvironment] api] addPlotWithOptionalTree:writableData user:user
+                                                                         callback:^(id json, NSError *err){
 
                     [[AZWaitingOverlayController sharedController] hideOverlay];
 
@@ -678,7 +680,7 @@ - (void)toggleEditMode:(BOOL)saveChanges
                 [[AZWaitingOverlayController sharedController] showOverlayWithTitle:@"Saving"];
 
                 NSArray *pendingImageData = [self stripPendingImageData];
-                [[[OTMEnvironment sharedEnvironment] api] updatePlotAndTree:data user:user callback:^(id json, NSError *err){
+                [[[OTMEnvironment sharedEnvironment] api] updatePlotAndTree:writableData user:user callback:^(id json, NSError *err){
 
                     [[AZWaitingOverlayController sharedController] hideOverlay];
 
@@ -715,6 +717,30 @@ - (void)toggleEditMode:(BOOL)saveChanges
     [self resetHeaderPosition];
 }
 
+- (NSMutableDictionary *)getWritableFieldData {
+    NSMutableDictionary *writableData = [[NSMutableDictionary alloc] init];
+    NSDictionary *fieldData = [[OTMEnvironment sharedEnvironment] fieldData];
+
+    for (NSString *model in @[@"plot", @"tree"]) {
+        NSDictionary *modelData = self.data[model];
+
+        if (modelData != nil) {
+            NSMutableDictionary *writableModelData = [[NSMutableDictionary alloc] init];
+
+            for (NSString *key in modelData) {
+                NSString *fieldKey = [NSString stringWithFormat:@"%@.%@", model, key];
+                NSDictionary *field = fieldData[fieldKey];
+
+                if (field != nil && ([key isEqualToString:@"id"] || [field[@"can_write"] boolValue])) {
+                    writableModelData[key] = modelData[key];
+                }
+            }
+            writableData[model] = writableModelData;
+        }
+    }
+    return writableData;
+}
+
 - (void)addNewUdf:(NSNotification *)notification
 {
     NSDictionary *notificationData = (NSDictionary *)[notification object];

OpenTreeMap/src/OTM/OTMEnvironment.h

@@ -102,6 +102,7 @@ extern NSString * const OTMEnvironmentDateStringShort;
 @property (nonatomic, strong) UIColor *buttonTextColor;
 @property (nonatomic, assign) BOOL pendingActive;
 @property (nonatomic, strong) NSArray *sectionTitles;
+@property (nonatomic, strong) NSDictionary *fieldData;
 @property (nonatomic, strong) NSArray *fields;
 @property (nonatomic, strong) NSDictionary *sortKeys;
 @property (nonatomic, strong) NSArray *ecoFields;

OpenTreeMap/src/OTM/OTMEnvironment.m

@@ -201,20 +201,21 @@ - (void)updateEnvironmentWithDictionary:(NSDictionary *)dict {
     self.instance = [dict objectForKey:@"url"];
     self.instanceId = [dict objectForKey:@"id"];
     self.geoRev = [dict objectForKey:@"geoRevHash"];
-    self.fields = [self fieldsFromDict:[dict objectForKey:@"fields"] orderedAndGroupedByDictArray:[dict objectForKey:@"field_key_groups"]];
+    self.fieldData = [dict objectForKey:@"fields"];
+    self.fields = [self fieldsFromDict:self.fieldData orderedAndGroupedByDictArray:[dict objectForKey:@"field_key_groups"]];
     self.sectionTitles = [self sectionTitlesFromDictArray:[dict objectForKey:@"field_key_groups"]];
     self.config = [dict objectForKey:@"config"];
     self.mapViewTitle = [dict objectForKey:@"name"];
-    self.photoFieldWritable = [[[[[dict objectForKey:@"fields"] objectForKey:@"treephoto.image"] objectForKey:@"can_write"] stringValue] isEqualToString:@"0"] ? NO : YES;
+    self.photoFieldWritable = [[[[self.fieldData objectForKey:@"treephoto.image"] objectForKey:@"can_write"] stringValue] isEqualToString:@"0"] ? NO : YES;
     [self setSearchRegionRadiusInMeters:[[dict objectForKey:@"extent_radius"] doubleValue]];
 
     NSDictionary *missingAndStandardFilters = [dict objectForKey:@"search"];
 
     NSArray *regFilters = [self filtersFromDictArray:missingAndStandardFilters[@"standard"]
-                                         usingFields:[dict objectForKey:@"fields"]];
+                                         usingFields:self.fieldData];
 
     NSArray *missingFilters = [self missingFiltersFromDictArray:missingAndStandardFilters[@"missing"]
-                                                    usingFields:[dict objectForKey:@"fields"]];
+                                                    usingFields:self.fieldData];
 
     self.filters = [regFilters arrayByAddingObjectsFromArray:missingFilters];