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Tweaks/FLEX/GlobalStateExplorers/DatabaseBrowser/FLEXRealmDatabaseManager.m

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+//
+//  FLEXRealmDatabaseManager.m
+//  FLEX
+//
+//  Created by Tim Oliver on 28/01/2016.
+//  Copyright © 2016 Realm. All rights reserved.
+//
+
+#import "FLEXRealmDatabaseManager.h"
+#import "NSArray+FLEX.h"
+#import "FLEXSQLResult.h"
+
+#if __has_include(<Realm/Realm.h>)
+#import <Realm/Realm.h>
+#import <Realm/RLMRealm_Dynamic.h>
+#else
+#import "FLEXRealmDefines.h"
+#endif
+
+@interface FLEXRealmDatabaseManager ()
+
+@property (nonatomic, copy) NSString *path;
+@property (nonatomic) RLMRealm *realm;
+
+@end
+
+@implementation FLEXRealmDatabaseManager
+static Class RLMRealmClass = nil;
+
++ (void)load {
+    RLMRealmClass = NSClassFromString(@"RLMRealm");
+}
+
++ (instancetype)managerForDatabase:(NSString *)path {
+    return [[self alloc] initWithPath:path];
+}
+
+- (instancetype)initWithPath:(NSString *)path {
+    if (!RLMRealmClass) {
+        return nil;
+    }
+    
+    self = [super init];
+    if (self) {
+        _path = path;
+        
+        if (![self open]) {
+            return nil;
+        }
+    }
+    
+    return self;
+}
+
+- (BOOL)open {
+    Class configurationClass = NSClassFromString(@"RLMRealmConfiguration");
+    if (!RLMRealmClass || !configurationClass) {
+        return NO;
+    }
+    
+    NSError *error = nil;
+    id configuration = [configurationClass new];
+    [(RLMRealmConfiguration *)configuration setFileURL:[NSURL fileURLWithPath:self.path]];
+    self.realm = [RLMRealmClass realmWithConfiguration:configuration error:&error];
+    
+    return (error == nil);
+}
+
+- (NSArray<NSString *> *)queryAllTables {
+    // Map each schema to its name
+    NSArray<NSString *> *tableNames = [self.realm.schema.objectSchema flex_mapped:^id(RLMObjectSchema *schema, NSUInteger idx) {
+        return schema.className ?: nil;
+    }];
+
+    return [tableNames sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)];
+}
+
+- (NSArray<NSString *> *)queryAllColumnsOfTable:(NSString *)tableName {
+    RLMObjectSchema *objectSchema = [self.realm.schema schemaForClassName:tableName];
+    // Map each column to its name
+    return [objectSchema.properties flex_mapped:^id(RLMProperty *property, NSUInteger idx) {
+        return property.name;
+    }];
+}
+
+- (NSArray<NSArray *> *)queryAllDataInTable:(NSString *)tableName {
+    RLMObjectSchema *objectSchema = [self.realm.schema schemaForClassName:tableName];
+    RLMResults *results = [self.realm allObjects:tableName];
+    if (results.count == 0 || !objectSchema) {
+        return nil;
+    }
+    
+    // Map results to an array of rows
+    return [NSArray flex_mapped:results block:^id(RLMObject *result, NSUInteger idx) {
+        // Map each row to an array of the values of its properties 
+        return [objectSchema.properties flex_mapped:^id(RLMProperty *property, NSUInteger idx) {
+            return [result valueForKey:property.name] ?: NSNull.null;
+        }];
+    }];
+}
+
+@end