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[英]How can I store document field data from a particular collection in firestore database to a string variable in kotlin
[英]How can I store documents in firestore database without overwritting the data?
我想為firestore中的每個用戶將“val credentials”存儲在“Credenciales”中,並將“val generales”存儲在“Generales”中。 但是,如果我注冊為新用戶,它會覆蓋舊用戶的存儲數據。 請讓我知道如何在不替換它們的情況下存儲這兩個變量。
這是我截取的代碼:
val generales = hashMapOf(
"Nombre" to nameEditText.text.toString(),
"Celular" to celularEditText.text.toString(),
"Cedula" to cedulaEditText.text.toString(),
"Oficio" to oficioEditText.text.toString(),
"Estado civil" to auto_complete_txt.text.toString(),
"Calle" to calleEditText.text.toString(),
"Sector" to sectorEditText.text.toString(),
"Edificio" to edificioEditText.text.toString(),
"Apto" to numeroEditText.text.toString(),
"Ciudad" to ciudadEditText.text.toString(),
"Residencial" to resEditText.text.toString(),
"Telefono" to telEditText.text.toString(),
)
db.collection("Usuarios").document("Generales")
.set(datos)
val credentials = hashMapOf(
"email" to emailEditText.text.toString(),
"password" to passwordEditText.text.toString(),
)
db.collection("Usuarios").document("Credenciales")
.set(credentials)
更新:
val generales = hashMapOf(
"Nombre" to nameEditText.text.toString(),
"Celular" to celularEditText.text.toString(),
"Cedula" to cedulaEditText.text.toString(),
"Oficio" to oficioEditText.text.toString(),
"Estado civil" to auto_complete_txt.text.toString(),
"Calle" to calleEditText.text.toString(),
"Sector" to sectorEditText.text.toString(),
"Edificio" to edificioEditText.text.toString(),
"Apto" to numeroEditText.text.toString(),
"Ciudad" to ciudadEditText.text.toString(),
"Residencial" to resEditText.text.toString(),
"Telefono" to telEditText.text.toString(),
)
// Add a new document with a generated ID
db.collection("Usuarios").document("Credenciales")
**.add(generales)** // I get an unresolved reference error here.
.addOnSuccessListener { documentReference ->
Log.d(TAG, "DocumentSnapshot written with ID: Generales")
}
.addOnFailureListener { e ->
Log.w(TAG, "Error adding document", e)
}
您需要在添加時刪除.document("Credenciales")
並將其設置為:
db.collection("Usuarios").add(generales) //etc.
如果您想添加到子集合中,它將類似於:
db.collection("Usuarios").doc(docref).collection(subcollectionRef).add(generales)
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