146 lines
5.2 KiB
Objective-C
146 lines
5.2 KiB
Objective-C
#import "RNFirebaseFirestoreCollectionReference.h"
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@implementation RNFirebaseFirestoreCollectionReference
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#if __has_include(<Firestore/FIRFirestore.h>)
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- (id)initWithPathAndModifiers:(NSString *) app
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path:(NSString *) path
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filters:(NSArray *) filters
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orders:(NSArray *) orders
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options:(NSDictionary *) options {
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self = [super init];
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if (self) {
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_app = app;
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_path = path;
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_filters = filters;
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_orders = orders;
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_options = options;
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_query = [self buildQuery];
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}
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return self;
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}
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- (void)get:(RCTPromiseResolveBlock) resolve
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rejecter:(RCTPromiseRejectBlock) reject {
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[_query getDocumentsWithCompletion:^(FIRQuerySnapshot * _Nullable snapshot, NSError * _Nullable error) {
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if (error) {
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[RNFirebaseFirestore promiseRejectException:reject error:error];
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} else {
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NSDictionary *data = [RNFirebaseFirestoreCollectionReference snapshotToDictionary:snapshot];
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resolve(data);
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}
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}];
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}
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- (FIRQuery *)buildQuery {
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FIRQuery *query = (FIRQuery*)[[RNFirebaseFirestore getFirestoreForApp:_app] collectionWithPath:_path];
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query = [self applyFilters:query];
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query = [self applyOrders:query];
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query = [self applyOptions:query];
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return query;
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}
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- (FIRQuery *)applyFilters:(FIRQuery *) query {
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for (NSDictionary *filter in _filters) {
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NSString *fieldPath = filter[@"fieldPath"];
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NSString *operator = filter[@"operator"];
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// TODO: Validate this works
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id value = filter[@"value"];
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if ([operator isEqualToString:@"EQUAL"]) {
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query = [query queryWhereField:fieldPath isEqualTo:value];
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} else if ([operator isEqualToString:@"GREATER_THAN"]) {
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query = [query queryWhereField:fieldPath isGreaterThan:value];
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} else if ([operator isEqualToString:@"GREATER_THAN_OR_EQUAL"]) {
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query = [query queryWhereField:fieldPath isGreaterThanOrEqualTo:value];
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} else if ([operator isEqualToString:@"LESS_THAN"]) {
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query = [query queryWhereField:fieldPath isLessThan:value];
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} else if ([operator isEqualToString:@"LESS_THAN_OR_EQUAL"]) {
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query = [query queryWhereField:fieldPath isLessThanOrEqualTo:value];
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}
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}
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return query;
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}
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- (FIRQuery *)applyOrders:(FIRQuery *) query {
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for (NSDictionary *order in _orders) {
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NSString *direction = order[@"direction"];
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NSString *fieldPath = order[@"fieldPath"];
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query = [query queryOrderedByField:fieldPath descending:([direction isEqualToString:@"DESCENDING"])];
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}
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return query;
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}
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- (FIRQuery *)applyOptions:(FIRQuery *) query {
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if (_options[@"endAt"]) {
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query = [query queryEndingAtValues:_options[@"endAt"]];
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}
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if (_options[@"endBefore"]) {
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query = [query queryEndingBeforeValues:_options[@"endBefore"]];
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}
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if (_options[@"offset"]) {
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// iOS doesn't support offset
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}
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if (_options[@"selectFields"]) {
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// iOS doesn't support selectFields
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}
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if (_options[@"startAfter"]) {
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query = [query queryStartingAfterValues:_options[@"startAfter"]];
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}
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if (_options[@"startAt"]) {
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query = [query queryStartingAtValues:_options[@"startAt"]];
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}
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return query;
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}
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+ (NSDictionary *)snapshotToDictionary:(FIRQuerySnapshot *)querySnapshot {
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NSMutableDictionary *snapshot = [[NSMutableDictionary alloc] init];
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[snapshot setValue:[self documentChangesToArray:querySnapshot.documentChanges] forKey:@"changes"];
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[snapshot setValue:[self documentSnapshotsToArray:querySnapshot.documents] forKey:@"documents"];
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return snapshot;
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}
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+ (NSArray *)documentChangesToArray:(NSArray<FIRDocumentChange *> *) documentChanges {
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NSMutableArray *changes = [[NSMutableArray alloc] init];
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for (FIRDocumentChange *change in documentChanges) {
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[changes addObject:[self documentChangeToDictionary:change]];
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}
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return changes;
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}
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+ (NSDictionary *)documentChangeToDictionary:(FIRDocumentChange *)documentChange {
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NSMutableDictionary *change = [[NSMutableDictionary alloc] init];
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[change setValue:[RNFirebaseFirestoreDocumentReference snapshotToDictionary:documentChange.document] forKey:@"document"];
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[change setValue:@(documentChange.newIndex) forKey:@"newIndex"];
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[change setValue:@(documentChange.oldIndex) forKey:@"oldIndex"];
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if (documentChange.type == FIRDocumentChangeTypeAdded) {
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[change setValue:@"added" forKey:@"type"];
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} else if (documentChange.type == FIRDocumentChangeTypeRemoved) {
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[change setValue:@"removed" forKey:@"type"];
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} else if (documentChange.type == FIRDocumentChangeTypeModified) {
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[change setValue:@"modified" forKey:@"type"];
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}
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return change;
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}
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+ (NSArray *)documentSnapshotsToArray:(NSArray<FIRDocumentSnapshot *> *) documentSnapshots {
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NSMutableArray *snapshots = [[NSMutableArray alloc] init];
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for (FIRDocumentSnapshot *snapshot in documentSnapshots) {
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[snapshots addObject:[RNFirebaseFirestoreDocumentReference snapshotToDictionary:snapshot]];
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}
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return snapshots;
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}
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#endif
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@end
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