i am newbie in to Parse.com i try to Fetch data from Parse table with same key but value is Different like as
-(void)getdata
{
NSMutableArray *allObjects = [NSMutableArray array];
NSUInteger limit = 1000;
__block NSUInteger skip = 0;
PFQuery *query = [PFQuery queryWithClassName:#"MapInfo"];
PFQuery *query = [PFQuery queryWithClassName:#"MapInfo"];
[query whereKey:#"Type" containedIn:#[#"Temopary", #"Business"]];
[query setLimit: limit];
[query setSkip: skip];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
[allObjects addObjectsFromArray:objects];
if (objects.count == limit) {
skip += limit;
[query setSkip: skip];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
[allObjects addObjectsFromArray:objects];
self.lqpinname=[allObjects valueForKey:#"GPIN"];
NSLog(#"Qpin name COunt %#",self.lqpinname);
self.locationArray=[allObjects valueForKey:#"Location"];
self.llatitude=[self.locationArray valueForKey:#"lat"];
self.llongitude=[self.locationArray valueForKey:#"lng"];
self.laddress=[allObjects valueForKey:#"Address"];
self.lusernameArray=[allObjects valueForKey:#"AddedBy"];
hudView.hidden=TRUE;
}];
}
}
else
{
NSLog(#"Error: %# %#", error, [error userInfo]);
}
}];
}
But it is return Null value here i want to Fetch data from table where column Type=Business & Temporary Please Give me Solution for this.
thanks.
You should be able to use whereKey:containedIn: to do this.
PFQuery *query = [PFQuery queryWithClassName:#"MapInfo"];
[query whereKey:#"Type" containedIn:#[#"Temopary", #"Business"]];
You also have a typo in Temporary (unless Temporay is something) - not sure if that's intentional or not.
Related
How do I find the number of objects found in a query? The following code is always printing "0", but there is a user with that username in the database.
PFQuery *query = [PFQuery queryWithClassName:#"User"];
[query whereKey:#"username" equalTo:self.usernameField.text];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if ([objects count] == 0) {
NSLog(#"error %lu", (unsigned long)[objects count]);
}
else {
NSLog(#"no error");
}
}];
What am I doing wrong?
Performing a query on the _User class should be done using the +query method of the PFUser class
PFQuery *userQuery = [PFUser query]; //Note the difference here.
[userQuery findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if ([objects count] == 0) {
NSLog(#"error %lu", (unsigned long)[objects count]);
}
else {
NSLog(#"no error");
}
}];
Try This , Because parse default user entity is initiated with "_User"
PFQuery *query = [PFQuery queryWithClassName:#"_User"];
[query whereKey:#"username" equalTo:self.usernameField.text];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if ([objects count] == 0) {
NSLog(#"error %lu", (unsigned long)[objects count]);
}
else {
NSLog(#"no error");
}
}];
This question already has an answer here:
How to fetch Data From Same Key in Parse iOS?
(1 answer)
Closed 7 years ago.
i am newbie in to Parse.com i try to Fetch data from Parse table with same key but value is Different like as
-(void)getdata
{
NSMutableArray *allObjects = [NSMutableArray array];
NSUInteger limit = 1000;
__block NSUInteger skip = 0;
PFQuery *query = [PFQuery queryWithClassName:#"MapInfo"];
[query whereKey:#"Type" containedIn:#[#"Temporary", #"Business"]];
[query setLimit: limit];
[query setSkip: skip];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
[allObjects addObjectsFromArray:objects];
if (objects.count == limit) {
skip += limit;
[query setSkip: skip];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
[allObjects addObjectsFromArray:objects];
self.qpinname=[allObjects valueForKey:#"GPIN"];
NSLog(#"Qpin Array %lu",(unsigned long)[self.qpinname count]);
self.locationArray=[allObjects valueForKey:#"Location"];
self.latitude=[self.locationArray valueForKey:#"lat"];
self.longitude=[self.locationArray valueForKey:#"lng"];
self.address=[allObjects valueForKey:#"Address"];
self.usernameArray=[allObjects valueForKey:#"AddedBy"];
[self getdata2];
hudView.hidden=TRUE;
}];
}
}
else
{
NSLog(#"Error: %# %#", error, [error userInfo]);
}
}];
}
-(void)getdata2
{
NSMutableArray *allObjects = [NSMutableArray array];
NSUInteger limit = 1000;
__block NSUInteger skip = 0;
PFQuery *query = [PFQuery queryWithClassName:#"MapInfo"];
[query whereKey:#"Type" equalTo:#"Personal"];
[query setLimit: limit];
[query setSkip: skip];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
[allObjects addObjectsFromArray:objects];
if (objects.count == limit) {
skip += limit;
[query setSkip: skip];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
[allObjects addObjectsFromArray:objects];
self.lqpinname=[allObjects valueForKey:#"GPIN"];
NSLog(#"Qpin Array %lu",(unsigned long)[self.lqpinname count]);
self.llocationArray=[allObjects valueForKey:#"Location"];
self.llatitude=[self.llocationArray valueForKey:#"lat"];
self.llongitude=[self.llocationArray valueForKey:#"lng"];
self.laddress=[allObjects valueForKey:#"Address"];
self.usernameArray=[allObjects valueForKey:#"AddedBy"];
}];
}
}
else
{
NSLog(#"Error: %# %#", error, [error userInfo]);
}
}];
}
Here i want to fetch data for same key but in different array but it is not working for me please give me solution for it.
thanks.
i am not sure if this is what you want to do but:
PFQuery *query = [PFQuery queryWithClassName:#"MapInfo"];
[query whereKey:#"Type" containedIn:#[#"Temporary", #"Business", #"Personal"]];
[query findObjectsInBackgroundWithBlock:^(NSArray *result, NSError *error) {
if (!error && result.count)
{
for (PFObject *parseResponse in result)
{
if ([[parseResponse objectForKey:#"Type"] isEqual:#"Personal"])
{
//the logic for data with Type = Personal
}
else
{
//the logic for the data with other Types
}
}
}
else
{
NSLog(#"Error: %# %#", error, [error userInfo]);
}
}];
i am newbie here in iOS and Parse Framework i want to fetch data from my Parse table from PFQuery like as
NSUInteger limit = 1500;
PFQuery *query = [PFQuery queryWithClassName:#"MapInfo"];
[query setLimit: limit];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error)
{
if (!error) {
NSLog(#"Successfully retrieved: %#", objects);
} else {
NSString *errorString = [[error userInfo] objectForKey:#"error"];
NSLog(#"Error: %#", errorString);
}
}];
it is Working as i want but it is give me only 1000 objects i want here to fetch all my table data it contain unto 2000 object and it will increment as day by day please help me for this.
For this Now i write a code like this but it is Only Give me 1000 Objects only
NSMutableArray *allObjects = [NSMutableArray array];
NSUInteger limit = 0;
__block NSUInteger skip = 0;
PFQuery *query = [PFQuery queryWithClassName:#"MapInfo"];
[query setLimit: limit];
[query setSkip: skip];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
[allObjects addObjectsFromArray:objects];
if (objects.count == limit) {
skip += limit;
[query setSkip: skip];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
NSLog(#"Array %#",objects);
}];
}
} else {
NSLog(#"Error: %# %#", error, [error userInfo]);
}
}];
thanks.
I believe there is a query limit on the number of objects that can be fetched. What I would do is query make two queries for the same thing but for the second query, do something like this
[query setSkip1000];
you can skip the first 1000 objects in the first query and grab the next 1000. Make your array an NSMutableArray and inside each block do this
[self.myArray addObjects:objects]; instead of self.myArray = objects; that way you are overwriting the objects in your array.
Edit
Instead of 2 separate queries you can also do this
NSMutableArray *allObjectsArray = [NSMutableArray array];
//Set this to the amount of objects you want. Has to be be 1000 or less
NSUInteger limit = 0;
//Set this to the amount you want to skip (Usually 0)
NSUInteger skip = 0;
PFQuery *query = [PFQuery queryWithClassName:#"tempClass"];
[query setLimit: limit];
[query setSkip: skip];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
// The find succeeded. Add the returned objects to allObjects
[allObjectsArray addObjectsFromArray:objects];
if (objects.count == limit) {
// There could be more objects in your database. Update the skip number and perform the same query.
skip = skip + limit;
[query setSkip: skip];
[query findObject...// Exactly the same way as you did before to get the rest of your objects in the database
}
} else {
// Log details of the failure
NSLog(#"Error: %# %#", error, [error userInfo]);
}
}];
This is a simple recursive solution to retrieve all the objects from a class using blocks.
Here is how you initially call it.
[self queryAllObjectswithLimit:1000 withSkip:0 withObjects:#[] withSuccess:^(NSArray * objects) {
//All the objects
} failure:^(NSError * error) {
//
}];
Here is the method.
- (void)queryAllObjectswithLimit:(NSUInteger )limit withSkip:(NSUInteger )skip withObjects:(NSArray *)objects withSuccess:(void (^)(NSArray *objects))success failure:(void (^)(NSError *error))failure {
//Store all the Objects through each layer of recurrsion
NSMutableArray *allObjects = [NSMutableArray arrayWithArray:objects];
PFQuery *query = [PFQuery queryWithClassName:#"Class_Name"];
query.limit = limit;
query.skip = skip;
[query findObjectsInBackgroundWithBlock:^(NSArray * _Nullable objects, NSError * _Nullable error) {
if (!error) {
// The find succeeded. Add the returned objects to allObjects
[allObjects addObjectsFromArray:objects];
if (objects.count == limit) {
//Recursively Call this until count does not equal limit, then begin returning all the objects back up
[self queryAllObjectswithLimit:limit withSkip:skip+limit withObjects:allObjects withSuccess:^(NSArray * objects) {
//This will return everything
success(objects);
} failure:^(NSError * error) {
failure(error);
}];
} else {
success(allObjects);
}
} else {
failure(error);
}
}];
}
I've tested this with less than 1000 objects, 1000 objects, and more than 1000 objects and it works perfectly.
Be cautious of how many objects you're grabbing though because this will grab all of them and if you're working with a large data set that might be an issue in terms of memory very quickly.
https://parse.com/questions/fetch-all-data-in-a-table-using-pfquery
You can use the skip and limit parameter to paginate through all objects in the table by adding the value of limit to skip until the query returns an amount of objects that is less than limit.
NSMutableArray *allObjects = [NSMutableArray array];
NSUInteger limit = 0;
__block NSUInteger skip = 0;
PFQuery *query = [PFQuery queryWithClassName:#"MapInfo"];
[query setLimit: limit];
[query setSkip: skip];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
// The find succeeded. Add the returned objects to allObjects
[allObjects addObjectsFromArray:objects];
if (objects.count == limit) {
// There might be more objects in the table. Update the skip value and execute the query again.
skip += limit;
[query setSkip: skip];
[query findObjects... // Execute the query until all objects have been returned. Keep adding the results to the allObjects mutable array.
}
} else {
// Log details of the failure
NSLog(#"Error: %# %#", error, [error userInfo]);
}
}];
i'm new to parse and i'm trying to fetch a user objectId, but whatever i cant seem to return the objectId. I can easily return the username. this is my query:
PFQuery *query = [PFUser query];
[query whereKey:#"username" equalTo:[[PFUser currentUser] objectForKey:#"username"]];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
if (objects.count) {
NSLog(#"%#", [objects lastObject]);
}
}
}];
This returns something like this:
<PFUser:9dcc65tsdr:(null)> {
username = AEleQFdBx9jdtypfsQmLtzAvW;
}
How do i return the objectId which is between PFUser and (null)?
You can use object.objectId like this:
PFQuery *query = [PFUser query];
[query whereKey:#"username" equalTo:[[PFUser currentUser] objectForKey:#"username"]];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
if (objects.count) {
for (PFObject *object in objects){
NSLog(#"Object ID: %#", object.objectId);
}
}
}
You can also use this: [[PFUser currentUser]objectId] much faster and works much better because you don't have to run a whole PFQuery.
I would like to make a search feature that queries two different key from the same class. What kind of regular expression could I use that return the most accurate values. Example:
- (void)searchTableList {
[self.results removeAllObjects];
PFQuery *query = [PFQuery queryWithClassName:#"TC"];
CLLocationCoordinate2D coordinate = [self.delegate.location coordinate];
PFGeoPoint *geoPoint = [PFGeoPoint geoPointWithLatitude:coordinate.latitude
longitude:coordinate.longitude];
PFQuery *query1 = [PFQuery queryWithClassName:#"TC"];
[query1 setLimit:1000];
[query1 whereKey:#"location"
nearGeoPoint:geoPoint
withinKilometers:5];
[query1 whereKey:#"courses" matchesRegex:[NSString stringWithFormat:#"%#",[self.searchBar.text lowercaseString]]];
[query1 whereKey:#"owner" notEqualTo:[PFUser currentUser].username];
[query1 findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
for( PFObject * object in objects)
{
[self.results addObject:object];
}
[query setLimit:1000];
[query whereKey:#"location"
nearGeoPoint:geoPoint
withinKilometers:5];
[query whereKey:#"owner" matchesRegex:[NSString stringWithFormat:#"%#",[self.searchBar.text lowercaseString]]];
[query whereKey:#"owner" notEqualTo:[PFUser currentUser].username];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
for( PFObject * object in objects)
{
[self.results addObject:object];
}
[self.tableView reloadData];
}];
}];
}
How could I take these two queries and order them in such a way that the most accurate information has priority.
If you want to find objects that match one of several queries, you can use orQueryWithSubqueries: method. For instance, if you want to find players with either have a lot of wins or a few wins, you can do:
PFQuery *lotsOfWins = [PFQuery queryWithClassName:#"Player"];
[lotsOfWins whereKey:#"wins" greaterThan:#150];
PFQuery *fewWins = [PFQuery queryWithClassName:#"Player"];
[fewWins whereKey:#"wins" lessThan:#5];
PFQuery *query = [PFQuery orQueryWithSubqueries:#[fewWins,lotsOfWins]];
[query findObjectsInBackgroundWithBlock:^(NSArray *results, NSError *error) {
// results contains players with lots of wins or only a few wins.
}];