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How to Entity Framework SqlQuery with a List of parameters
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namespace Persistence.Store.SqlRepositories | |
{ | |
public class RawMsSqlRepository : DbContextManipulator, IRawSqlRepository | |
{ | |
public RawMsSqlRepository(string connectionString) : base (connectionString) | |
{ | |
} | |
public T[] Query<T>(string sqlText, Dictionary<string, object> parametersDict) | |
{ | |
using (var ctx = CreateContext()) | |
{ | |
var sqlParameters = new SqlParameter[0].AsEnumerable(); | |
var arrayParameters = new Dictionary<string, int>(); | |
foreach (var currentParam in parametersDict) | |
{ | |
if (!currentParam.Key.StartsWith("@")) | |
{ | |
throw new InvalidOperationException($"Sql parameter {currentParam.Key} should start with @ character."); | |
} | |
if (currentParam.Value is System.Collections.IEnumerable) | |
{ | |
var index = 0; | |
foreach(var currentValue in currentParam.Value as System.Collections.IEnumerable) | |
{ | |
sqlParameters = sqlParameters.Append(new SqlParameter(currentParam.Key + index.ToString(), currentValue)); | |
index++; | |
} | |
arrayParameters.Add(currentParam.Key, index); | |
} | |
else | |
{ | |
sqlParameters = sqlParameters.Append(new SqlParameter(currentParam.Key, currentParam.Value)); | |
} | |
} | |
foreach(var currentArrayParam in arrayParameters) | |
{ | |
var newSqlParameters = new HashSet<string>(); | |
for (var i = 0; i < currentArrayParam.Value; i++) | |
{ | |
newSqlParameters.Add($"{ currentArrayParam.Key }{ i }"); | |
} | |
sqlText = sqlText.Replace(currentArrayParam.Key, string.Join(",", newSqlParameters.ToArray())); | |
} | |
return ctx.Database.SqlQuery<T>(sqlText, sqlParameters.ToArray()).ToArray(); | |
} | |
} | |
} | |
} |
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