我如何在 firebase firestore android 中检索文档以匹配我的特定登录凭据
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【中文标题】我如何在 firebase firestore android 中检索文档以匹配我的特定登录凭据【英文标题】：How do i retreive a document in firebase firestore android to match my particular login credentials 【发布时间】：2020-06-05 06:37:09 【问题描述】：我在下面有一个这种结构的火力基地
Structure of my Firestore Database
它有两个用户，分别是教会管理员和普通教会用户
教会管理员这是注册新教会的代码
public void onBoardChurchDetails(String church_name, String church_addr, String church_email, String church_leadName, String churchPhone, String church_icon, String churchDescr, String church_regStat, final String uid)
if (networkInfo != null && networkInfo.isConnectedOrConnecting() && networkInfo.isConnected())
rhemaCollRef = rChurchFireStore.collection("rhema_churches");
rhemaHiveChurchSubClass = getRhemaHiveChurchSubClass();
if (rhemaHiveChurchSubClass.checkChurchEmptyParams(church_icon, church_name, church_addr, churchPhone, church_email, church_leadName, churchDescr, church_regStat,uid) == 1)
rhemaHiveChurchModelClass = getChurchModelClass(church_name, church_addr, church_email, church_leadName, churchPhone, church_icon, churchDescr, church_regStat,uid);
rhemaCollRef.document(church_name).set(rhemaHiveChurchModelClass).addOnCompleteListener(new OnCompleteListener<Void>()
@Override
public void onComplete(@NonNull Task<Void> task)
if (task.isSuccessful())
try
getAuto().getToast(c, " Congratulations you Just Registered a new Church", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
intent = new Intent(c, RhemaHiveChurchPortal.class);
bundle.putString("church_id", uid);
intent.putExtras(bundle);
startActivity(intent);
clearChurchDetails();
catch(NullPointerException np)
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + np.getLocalizedMessage(), RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
else
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + task.getException().getLocalizedMessage(), RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
startActivity(getAuto().newActivityStarter(c, RhemaHiveChurchPortal.class));
).addOnFailureListener(new OnFailureListener()
@Override
public void onFailure(@NonNull Exception e)
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + e.getLocalizedMessage(), RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
);
else
getAuto().getToast(c, "Oops Seems we are missing out some data here", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
else
getAuto().getToast(c, "Oops Seems No Internet Service is connected", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
对于用户注册我有
public void onBoardUserWithoutSocial(String fName, String lName, String gender, String userType, String dob, String regStat, String imgPath, String userEmail, String phone , String about, final String churchName, String branchName, String addr, String city, String country, String postalCode, final String uid)
if (networkInfo != null && networkInfo.isConnectedOrConnecting() && networkInfo.isConnected())
fstore = getFstore();
fiReference = fstore.collection("rhema_churches");
rhemaHiveUserSubClass = getRhemaHiveUserSubClass();
if (rhemaHiveUserSubClass.checkEmptyParam(fName, lName, branchName, churchName, addr, country, city, dob, gender, postalCode, regStat, phone, userType,imgPath,userEmail,about,uid) == 1)
rhemaHiveUserModelClass = getUserModelClass(fName,lName,gender,userType,dob,regStat, imgPath,userEmail,phone,about,churchName,branchName,addr,city,country,postalCode,uid);
fiReference.document(churchName).collection("members_data").document(getFullName(fName,lName)).set(rhemaHiveUserModelClass).addOnCompleteListener(new OnCompleteListener<Void>()
@Override
public void onComplete(@NonNull Task<Void> task)
if(task.isSuccessful())
try
getAuto().getToast(c, "Congratulation You've onboarded sucessfully..",RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
bundle.putString("user_id", uid);
bundle.putString("user_church",churchName);
intent.putExtras(bundle);
startActivity(intent);
clearUserDetails();
catch(NullPointerException np)
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + np.getLocalizedMessage(),RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
else
getAuto().getToast(c,RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + task.getException().getLocalizedMessage(),RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
).addOnFailureListener(new OnFailureListener()
@Override
public void onFailure(@NonNull Exception e)
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + e.getLocalizedMessage(),RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
);
else
getAuto().getToast(c, "Oops ! !..Seems we are missing out some of your details", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
else
getAuto().getToast(c, "Oops ! !..Seems you need to put on your data", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
成功注册后，我希望普通用户能够在使用任何提供商（例如 Facebook、Twitter 或 google）进行身份验证后登录，他的门户应该使用 uuid 和电话号码的组合来检索他的个性化门户
要检索教堂资料，请参见下面的代码
public void retreiveChurchDetails(String id) throws NullPointerException
if(networkInfo != null && networkInfo.isConnectedOrConnecting() && networkInfo.isConnected())
FirebaseFirestore fS = getFStore();
rhemaCollRef = fS.collection("rhema_churches");
rhemaCollRef.whereEqualTo("church_uid", id ).get().addOnSuccessListener(new OnSuccessListener<QuerySnapshot>()
@Override
public void onSuccess(QuerySnapshot queryDocumentSnapshots)
for(DocumentSnapshot documentSnapshot : queryDocumentSnapshots.getDocuments())
church_name = documentSnapshot.getString("church_name");
church_email = documentSnapshot.getString("church_email");
church_phone = documentSnapshot.getString("church_phone");
church_pix_link = documentSnapshot.getString("church_pix");
getTextView(R.id.church_retr_name).setText(church_name);
getTextView(R.id.church_retr_email).setText(church_email);
getTextView(R.id.church_retr_phone).setText(church_phone);
ld_wt_gl(c,church_pix_link,44,44,getImg(R.id.church_retr_logg));
).addOnFailureListener(new OnFailureListener()
@Override
public void onFailure(@NonNull Exception e)
getAuto().getToast(c,RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + e.getLocalizedMessage(),RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
);
else
getAuto().getToast(c, "Oops ! !..Seems we need an internet connection for this", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
我的问题是我如何充分了解要获取用户数据，您必须遵循以下结构来检索用户详细信息
rhema_churches = > Church_name（需要确定如何获取）=> 文档 => members_data => user_data
请参考上附的数据库结构
请帮帮我..
看看我尝试了什么
public void retrUserDet(final String uid, String church_name) throws NullPointerException
if(networkInfo != null && networkInfo.isConnectedOrConnecting() && networkInfo.isConnected())
FirebaseFirestore fS = getFStore();
rhemaCollRef = fS.collection("rhema_churches");
rhemaCollRef.document(church_name).collection("members_data").whereEqualTo("user_uid",uid).get().addOnSuccessListener(new OnSuccessListener<QuerySnapshot>()
@Override
public void onSuccess(QuerySnapshot queryDocumentSnapshots)
if(!queryDocumentSnapshots.getDocuments().isEmpty())
for(DocumentSnapshot doc : queryDocumentSnapshots.getDocuments())
user_email = doc.getString("user_email");
user_name = doc.getString("user_fName") + doc.getString("user_lName");
user_phone = doc.getString("user_phone");
user_pix_link = doc.getString("user_pix");
getTex(R.id.user_retr_email).setText(user_email);
getTex(R.id.user_retr_name).setText(user_name);
getTex(R.id.user_retr_phone).setText(user_phone);
ld_wt_gl(c,user_pix_link,44,44,getImg(R.id.user_retr_logg));
);
上面这个方法需要两个参数来进行查询，即uid和churchName
这是我尝试检索教堂名称的方法，但它不起作用
public String retrChurchName(String uid)
if (networkInfo != null && networkInfo.isConnectedOrConnecting() && networkInfo.isConnected())
rhemaCollRef = rChurchFireStore.collection("rhema_churches");
//rhemaCollRef.
rhemaCollRef.whereEqualTo("uid",uid).get().addOnSuccessListener(new OnSuccessListener<QuerySnapshot>()
@Override
public void onSuccess(QuerySnapshot queryDocumentSnapshots)
for(DocumentSnapshot documentSnapshot : queryDocumentSnapshots.getDocuments()
)
if(documentSnapshot.exists())
churchName = documentSnapshot.getString("church_name");
else
getAuto().getToast(c,"Document doesnt exist", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
).addOnFailureListener(new OnFailureListener()
@Override
public void onFailure(@NonNull Exception e)
getAuto().getToast(c,RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + e.getLocalizedMessage(), RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
);
return churchName;
else
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + networkInfo.getExtraInfo(), RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
return "";
谢谢！
【问题讨论】：
这个answer 可能会有所帮助。 我理解你的实现，我应该有一个 UID 作为我的集合之前的文档，这很有意义并且便于查询..我会尝试一下，看看它是否有效..谢谢 【参考方案1】：所以我能够解决我的问题并且我的代码运行良好..感谢 Alex Mamo
我要做的第一件事是为教会和用户重新构建我的入职代码
为了教会我有
public void onBoardChurchDetails(String church_name, String church_addr, String church_email, String church_leadName, String churchPhone, String church_icon, String churchDescr, String church_regStat, final String uid, String userType)
if (networkInfo != null && networkInfo.isConnectedOrConnecting() && networkInfo.isConnected())
rhemaCollRef = rChurchFireStore.collection("rhema_churches");
rhemaHiveChurchSubClass = getRhemaHiveChurchSubClass();
if (rhemaHiveChurchSubClass.checkChurchEmptyParams(church_icon, church_name, church_addr, churchPhone, church_email, church_leadName, churchDescr, church_regStat, uid, userType) == 1)
rhemaHiveChurchModelClass = getChurchModelClass(church_name, church_addr, church_email, church_leadName, churchPhone, church_icon, churchDescr, church_regStat, uid, userType);
rhemaCollRef.document(uid).set(rhemaHiveChurchModelClass).addOnCompleteListener(new OnCompleteListener<Void>()
@Override
public void onComplete(@NonNull Task<Void> task)
if (task.isSuccessful())
try
getAuto().getToast(c, " Congratulations you Just Registered a new Church", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
bundle.putString("church_id", uid);
intent.putExtras(bundle);
startActivity(intent);
//clearChurchDetails();
catch (NullPointerException np)
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + np.getLocalizedMessage(), RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
else
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + task.getException().getLocalizedMessage(), RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
startActivity(getAuto().newActivityStarter(c, RhemaHiveChurchPortal.class));
).addOnFailureListener(new OnFailureListener()
@Override
public void onFailure(@NonNull Exception e)
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + e.getLocalizedMessage(), RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
);
else
getAuto().getToast(c, "Oops Seems we are missing out some data here", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
else
getAuto().getToast(c, "Oops Seems No Internet Service is connected", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
对于用户入职我有
public void onBoardUserWithoutSocial(String fName, String lName, String gender, String userType, String dob, String regStat, String imgPath, String userEmail, String phone , String about, final String churchName, String branchName, String addr, String city, String country, String postalCode, final String uid)
if (networkInfo != null && networkInfo.isConnectedOrConnecting() && networkInfo.isConnected())
fstore = getFstore();
fiReference = fstore.collection("rhema_churches");
rhemaHiveUserSubClass = getRhemaHiveUserSubClass();
if (rhemaHiveUserSubClass.checkEmptyParam(fName, lName, branchName, churchName, addr, country, city, dob, gender, postalCode, regStat, phone, userType,imgPath,userEmail,about,uid) == 1)
rhemaHiveUserModelClass = getUserModelClass(fName,lName,gender,userType,dob,regStat, imgPath,userEmail,phone,about,churchName,branchName,addr,city,country,postalCode,uid);
fiReference.document(uid).set(rhemaHiveUserModelClass).addOnCompleteListener(new OnCompleteListener<Void>()
@Override
public void onComplete(@NonNull Task<Void> task)
if(task.isSuccessful())
try
getAuto().getToast(c, "Congratulation You've onboarded sucessfully..",RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
bundle.putString("user_id", uid);
bundle.putString("user_church",churchName);
intent.putExtras(bundle);
startActivity(intent);
clearUserDetails();
catch(NullPointerException np)
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + np.getLocalizedMessage(),RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
else
getAuto().getToast(c,RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + task.getException().getLocalizedMessage(),RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
).addOnFailureListener(new OnFailureListener()
@Override
public void onFailure(@NonNull Exception e)
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + e.getLocalizedMessage(),RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
);
else
getAuto().getToast(c, "Oops ! !..Seems we are missing out some of your details", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
else
getAuto().getToast(c, "Oops ! !..Seems you need to put on your data", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
因此，我没有在另一个集合中包含一个集合。我只是将一个集合作为 rhema_churches，然后为每种类型的用户都有一个 ID。
看下面的结构
New DB Structure
使用这种结构，使用多个提供者登录变得很困难，因为您使用的每个提供者都记录为易于检索的文档 ID
这就是用户和教堂的新查询现在的样子
对于教堂查询，我们有
public void retreiveChurchDetails(String id) throws NullPointerException
if (networkInfo != null && networkInfo.isConnectedOrConnecting() && networkInfo.isConnected())
FirebaseFirestore fS = getFStore();
rhemaCollRef = fS.collection("rhema_churches");
rhemaCollRef.whereEqualTo("church_uid", id).get().addOnSuccessListener(new OnSuccessListener<QuerySnapshot>()
@Override
public void onSuccess(QuerySnapshot queryDocumentSnapshots)
for (DocumentSnapshot documentSnapshot : queryDocumentSnapshots.getDocuments())
church_name = documentSnapshot.getString("church_name");
church_email = documentSnapshot.getString("church_email");
church_phone = documentSnapshot.getString("church_phone");
church_pix_link = documentSnapshot.getString("church_pix");
getTextView(R.id.church_retr_name).setText(church_name);
getTextView(R.id.church_retr_email).setText(church_email);
getTextView(R.id.church_retr_phone).setText(church_phone);
ld_wt_gl(c, church_pix_link, 88, 88, getImg(R.id.church_retr_logg));
).addOnFailureListener(new OnFailureListener()
@Override
public void onFailure(@NonNull Exception e)
getAuto().getToast(c, RhemaHiveClassReferenceConstants.ERROR_MESSAGE_GENERIC + e.getLocalizedMessage(), RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
);
else
getAuto().getToast(c, "Oops ! !..Seems we need an internet connection for this", RhemaHiveClassReferenceConstants.TOAST_SHORT_LEN).show();
然后对于用户查询我有
public void retrUserDet(final String uid) throws NullPointerException
if(networkInfo != null && networkInfo.isConnectedOrConnecting() && networkInfo.isConnected())
FirebaseFirestore fS = getFStore();
rhemaCollRef = fS.collection("rhema_churches");
rhemaCollRef.whereEqualTo("user_uid",uid).get().addOnSuccessListener(new OnSuccessListener<QuerySnapshot>()
@Override
public void onSuccess(QuerySnapshot queryDocumentSnapshots)
if(!queryDocumentSnapshots.getDocuments().isEmpty())
for(DocumentSnapshot doc : queryDocumentSnapshots.getDocuments())
user_email = doc.getString("user_email");
user_fName = doc.getString("user_fName");
user_lName = doc.getString("user_lName");
user_phone = doc.getString("user_phone");
user_pix_link = doc.getString("user_pix");
getTex(R.id.user_retr_email).setText(user_email);
getTex(R.id.user_retr_name).setText(retFullName(user_fName,user_lName));
getTex(R.id.user_retr_phone).setText(user_phone);
ld_wt_gl(c,user_pix_link,120,120,getImg(R.id.user_retr_logg));
);
关键的一点是永远不要过早地使您的数据库结构复杂化..对于进入我的 Firestore 的任何类型的数据，它都有一个用户类型，它也可以帮助我进行过滤
谢谢！
【讨论】：
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