I want to retrieve Product information - Flutter

MuhammadZohaib
March 3, 2023
235 views
0 votes
2 Answers

I want to retrieve All Add_product data using current user uid How is it possible.

My code return only loading widget because my query is incorrect. How can I write my query in a correct way?

My database:

My code

StreamBuilder(
                stream: FirebaseFirestore.instance.collectionGroup("Add_product").where("id",isEqualTo: FirebaseAuth.instance.currentUser!.uid).snapshots(),
                builder:(BuildContext context,AsyncSnapshot<QuerySnapshot>snapshot){
                  if (!snapshot.hasData) {
                    return Center(child: LoadingAnimationWidget.staggeredDotsWave(color: Colors.red, size: 10));
                  }

      `            return Container(
                   
                          child: InkWell(
                            child: Card(
                              elevation:5,
                              shape: RoundedRectangleBorder(
                                borderRadius: BorderRadius.circular(15.0),
                              ),
                              child: Column(
                                children: [
                                  Padding(
                                    padding: const EdgeInsets.all(9.0),
                                    child: Image.network(snapshot.data!.docs[index]["url"],width: MediaQuery.of(context).size.width*.49,height:MediaQuery.of(context).size.height*.17 ,),
                                  ),
                                  SizedBox(height: 7,),
                                  Text(
                                    snapshot.data!.docs[index]["product_name"],
                                    style: TextStyle(
                                      fontWeight: FontWeight.bold,
                                      fontSize: 16,
                                    ),
                                    textAlign: TextAlign.center,
                                  ),
                                  SizedBox(height: 4),
               
                        );
                      },
                    ),
                  );
                }
            ),

Answers

Try this one

StreamBuilder(
                stream: FirebaseFirestore.instance.collection("Add_product").snapshots(),
                builder:(BuildContext context,AsyncSnapshot<QuerySnapshot>snapshot){
                  if (!snapshot.hasData) {
                    return Center(child: LoadingAnimationWidget.staggeredDotsWave(color: Colors.red, size: 10));
                  }

      `            return Container(
                   
                          child: InkWell(
                            child: Card(
                              elevation:5,
                              shape: RoundedRectangleBorder(
                                borderRadius: BorderRadius.circular(15.0),
                              ),
                              child: Column(
                                children: [
                                  Padding(
                                    padding: const EdgeInsets.all(9.0),
                                    child: Image.network(snapshot.data!.docs[index]["url"],width: MediaQuery.of(context).size.width*.49,height:MediaQuery.of(context).size.height*.17 ,),
                                  ),
                                  SizedBox(height: 7,),
                                  Text(
                                    snapshot.data!.docs[index]["product_name"],
                                    style: TextStyle(
                                      fontWeight: FontWeight.bold,
                                      fontSize: 16,
                                    ),
                                    textAlign: TextAlign.center,
                                  ),
                                  SizedBox(height: 4),
               
                        );
                      },
                    ),
                  );
                }
            ),

If you also need user id, you can get the userId first and store it into the variable and pass that variable into where

In my perspective the firebase structure which you are following is not recommended, consider changing it.

To answer your question, you can try:

 @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: StreamBuilder<QuerySnapshot>(
          stream: FirebaseFirestore
                  .instance.
                  .collection('Add_product')
                  .doc(FirebaseAuth.instance.currentUser!.uid)
                  .collection('Add_product')
                  .snapshots(), 
          builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
            if (snapshot.hasError) {
              return const Text('Something went wrong');
            }
            if (snapshot.connectionState == ConnectionState.waiting) {
              return const Text("Loading");
            }
            return ListView(
                children: snapshot.data!.docs.map((DocumentSnapshot document) {
              Map<String, dynamic> data =
                  document.data()! as Map<String, dynamic>;
              return ListTile(
                title: Text(data['product_name']), // Should print "Cloth"
              );
            }).toList());
          },
        ),
      ),
    );
  }

Please signup or login to give your own answer.

Click here to cancel reply.

I want to retrieve Product information – Flutter

Answers