public async Task <BooleanResponse> DeleteByQuery <T>(Expression <Func <T, bool> > exp, bool softDelete = true) where T : DataModel, new()
{
var response = new BooleanResponse();
try
{
int rowsAffected = 0;
var obj = await conn.Table <T>().Where(exp).FirstOrDefaultAsync();
if (obj != null)
{
if (softDelete)
{
obj.TimeStamp = DateTime.Now;
obj.MarkedForDelete = softDelete;
rowsAffected = await conn.UpdateAsync(obj);
}
else
{
rowsAffected = await conn.DeleteAsync(obj);
}
response.Success = rowsAffected == 1 ? true : false;
}
return(response);
}
catch (Exception ex)
{
response.Error = ex;
return(response);
}
}
public static async Task <BooleanResponse> DeleteAsync(string contentName)
{
await fileStoreLock.WaitAsync();
var response = new BooleanResponse()
{
Success = false
};
try
{
await Task.Run(() =>
{
using (var isoStorage = IsolatedStorageFile.GetUserStoreForApplication())
{
if (isoStorage.FileExists(contentName))
{
isoStorage.DeleteFile(contentName);
}
response.Success = true;
}
});
}
catch (Exception ex)
{
response.Error = ex;
ex.ConsoleWrite();
}
finally
{
fileStoreLock.Release();
}
return(response);
}
public async Task <BooleanResponse> DeleteByInternalID <T>(Guid ID, bool softDelete = true) where T : DataModel, new()
{
var response = new BooleanResponse();
try
{
var obj = await GetByInternalId <T>(ID);
int rowsAffected = 0;
if (obj.Success)
{
if (softDelete)
{
obj.Response.TimeStamp = DateTime.Now;
obj.Response.MarkedForDelete = softDelete;
rowsAffected = await conn.UpdateAsync(obj.Response);
}
else
{
rowsAffected = await conn.DeleteAsync(obj.Response);
}
response.Success = rowsAffected == 1 ? true : false;
}
return(response);
}
catch (Exception ex)
{
response.Error = ex;
return(response);
}
}
public async Task <BooleanResponse> AddOrUpdate <T>(T obj) where T : DataModel, new()
{
var response = new BooleanResponse();
int rowsAffected = 0;
obj.TimeStamp = DateTime.Now;
try
{
if (obj.CorrelationID != default(Guid))
{
rowsAffected = await conn.UpdateAsync(obj);
}
else
{
obj.CorrelationID = Guid.NewGuid();
rowsAffected = await conn.InsertAsync(obj);
if (rowsAffected != 1)
{
obj.CorrelationID = default(Guid);
}
}
response.Success = rowsAffected == 1 ? true : false;
return(response);
}
catch (Exception ex)
{
response.Error = ex;
return(response);
}
}
public static async Task <BooleanResponse> DeleteFileStore(string fileName)
{
var response = new BooleanResponse();
try
{
await FileStore.DeleteAsync(fileName);
}
catch (Exception ex)
{
response.Error = ex;
}
return(response);
}
public async Task <BooleanResponse> AddOrUpdate <T, P>(T obj, Expression <Func <T, P> > exp) where T : DataModel, new()
{
var response = new BooleanResponse();
int rowsAffected = 0;
obj.TimeStamp = DateTime.Now;
try
{
var expression = (MemberExpression)exp.Body;
string name = expression.Member.Name;
var prop = obj.GetType().GetProperty(name);
var vObj = (P)prop.GetValue(obj, null);
if (default(P).Equals(vObj))
{
throw new ApplicationException($"Instance of model is missing primary key identified for {typeof(T).Name}");
}
else
{
var stmt = $"SELECT count({name}) FROM {obj.GetType().Name} WHERE {name} = ?";
var result = await conn.ExecuteScalarAsync <int>(stmt, vObj);
if (result > 0)
{
var existingGuid = $"SELECT InternalID FROM {obj.GetType().Name} WHERE {name} = ?";
var guidResult = await conn.ExecuteScalarAsync <Guid>(existingGuid, vObj);
obj.CorrelationID = guidResult;
rowsAffected = await conn.UpdateAsync(obj);
}
else
{
if (obj.CorrelationID == default(Guid))
{
obj.CorrelationID = Guid.NewGuid();
}
rowsAffected = await conn.InsertAsync(obj);
}
}
response.Success = rowsAffected == 1 ? true : false;
return(response);
}
catch (Exception ex)
{
response.Error = ex;
return(response);
}
}
public static async Task <BooleanResponse> SaveAccount <T>(string fileName, T obj) where T : class, new()
{
return(await Task.Run(async() =>
{
var response = new BooleanResponse();
try
{
var dataString = JsonConvert.SerializeObject(obj);
var eDataString = Crypto.Encrypt(dataString, SerialNumber);
response = await FileStore.SaveStringAsync(fileName, eDataString);
}
catch (Exception ex)
{
response.Error = ex;
}
return response;
}));
}
public async Task <BooleanResponse> TruncateAsync <T>() where T : ObservableObject, new()
{
var response = new BooleanResponse();
await conn.RunInTransactionAsync(async (tran) =>
{
try
{
await conn.DropTableAsync <T>();
await conn.CreateTableAsync <T>();
tran.Commit();
response.Success = true;
}
catch (Exception ex)
{
response.Error = ex;
tran.Rollback();
}
});
return(response);
}
public static async Task <BooleanResponse> SaveToAccountStore <T>(string username, string password, T obj) where T : class, new()
{
return(await Task.Run(() =>
{
var response = new BooleanResponse()
{
Success = false
};
try
{
var account = GetAccount(username, true);
PersistAccount(account, username, password, obj);
SaveAccount(account, username, true);
response.Success = true;
}
catch (Exception ex)
{
response.Error = ex;
}
return response;
}));
}
public static async Task <BooleanResponse> SaveAsync <T>(string contentName, object obj)
{
await fileStoreLock.WaitAsync();
return(await Task.Run(() =>
{
var response = new BooleanResponse()
{
Success = false
};
try
{
using (var isoStorage = IsolatedStorageFile.GetUserStoreForApplication())
{
var data = JsonConvert.SerializeObject(obj);
using (var s = isoStorage.OpenFile(contentName, FileMode.Create))
{
using (var sw = new StreamWriter(s))
{
sw.Write(data);
sw.Flush();
sw.Close();
response.Success = true;
}
}
}
}
catch (Exception ex)
{
response.Error = ex;
}
finally
{
fileStoreLock.Release();
}
return response;
}));
}
public async Task <BooleanResponse> AddOrUpdateAll <T, P>(List <T> collection, Expression <Func <T, P> > exp) where T : DataModel, new()
{
var st = DateTime.Now;
var response = new BooleanResponse();
collection.ForEach((obj) => obj.TimeStamp = DateTime.Now);
try
{
var expression = (MemberExpression)exp.Body;
string name = expression.Member.Name;
var prop = typeof(T).GetProperty(name);
var inserts = new List <T>();
var updates = new List <T>();
foreach (var obj in collection)
{
var vObj = (P)prop.GetValue(obj, null);
if (!default(P).Equals(vObj))
{
var stmt = $"SELECT count({name}) FROM {obj.GetType().Name} WHERE {name} = ?";
var result = await conn.ExecuteScalarAsync <int>(stmt, vObj);
if (result > 0)
{
var existingGuid = $"SELECT InternalID FROM {obj.GetType().Name} WHERE {name} = ?";
var guidResult = await conn.ExecuteScalarAsync <Guid>(existingGuid, vObj);
obj.CorrelationID = guidResult;
updates.Add(obj);
}
else
{
if (obj.CorrelationID == default(Guid))
{
obj.CorrelationID = Guid.NewGuid();
}
inserts.Add(obj);
}
}
}
var totalInserted = await conn.InsertAllAsync(inserts);
var totalUpdated = await conn.UpdateAllAsync(updates);
if (totalUpdated == updates.Count && totalInserted == inserts.Count)
{
response.Success = true;
}
return(response);
}
catch (Exception ex)
{
response.Error = ex;
return(response);
}
var et = DateTime.Now;
var sp = et - st;
var total = (sp.TotalSeconds * 1000) + sp.TotalMilliseconds;
Console.WriteLine($"Total ms for FSDB write is {total} on {typeof(T).Name}");
}
