71 lines
2.1 KiB
C#
71 lines
2.1 KiB
C#
namespace LaaProduction.SQL
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{
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using LaaProduction.SQL.Interfaces;
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using System;
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using System.Collections.Generic;
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using System.Data.SqlClient;
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using System.Linq;
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public class SQLCommand : ISQLCommand
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{
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private readonly SQLConnection sqlConnection;
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private readonly IDictionary<String, SqlParameter> parameters;
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public SQLCommand(SQLConnection sqlConnection, String commandText)
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{
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this.sqlConnection = sqlConnection.EnsureNotNull(nameof(sqlConnection));
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this.CommandText = commandText.EnsureNotNullOrWhiteSpace(nameof(commandText));
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this.parameters = new Dictionary<String, SqlParameter>();
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}
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internal String CommandText { get; }
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internal SqlParameter[] Parameters
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=> this.parameters.Values.ToArray();
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public Int32 ExecuteNonQuery()
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=> this.sqlConnection.ExecuteNonQuery(this);
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public IEnumerable<T> ExecuteReader<T>(Func<ISQLReader, T> expression)
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{
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foreach (var result in this.sqlConnection.ExecuteReader(this, expression))
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{
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yield return result;
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}
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}
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public T ExecuteScalar<T>(Func<ISQLReader, T> expression)
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=> this.sqlConnection.ExecuteScalar(this, expression);
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public T FirstOrDefault<T>(Func<ISQLReader, T> expression)
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=> this.sqlConnection.FirstOrDefault(this, expression);
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public ISQLCommand SetParameter(String name, Object value)
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{
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name.ThrowIfNullOrWhiteSpace(nameof(name));
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if (value is null)
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{
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value = DBNull.Value;
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}
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var parameter = new SqlParameter(name, value);
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this.parameters[name] = parameter;
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return this;
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}
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public ISQLCommand SetParameters(IEnumerable<KeyValuePair<String, Object>> parameters)
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{
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foreach (var kvp in parameters)
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{
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this.SetParameter(kvp.Key, kvp.Value);
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}
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return this;
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}
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}
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}
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