C# Npgsql.NpgsqlParameter类代码示例

        public static bool DeleteByModule(int moduleId)
        {
            StringBuilder sqlCommand = new StringBuilder();
            sqlCommand.Append("DELETE FROM mp_mediafile ");
            sqlCommand.Append("WHERE ");
            sqlCommand.Append("fileid  ");
            sqlCommand.Append("IN (");
            sqlCommand.Append("SELECT fileid FROM mp_mediafile WHERE trackid IN (");
            sqlCommand.Append("SELECT trackid FROM mp_mediatrack WHERE playerid IN (");
            sqlCommand.Append("SELECT playerid FROM mp_mediaplayer WHERE moduleid = :moduleid");
            sqlCommand.Append(")");
            sqlCommand.Append(")");
            sqlCommand.Append(")");
            sqlCommand.Append(";");

            NpgsqlParameter[] arParams = new NpgsqlParameter[1];

            arParams[0] = new NpgsqlParameter("moduleid", NpgsqlTypes.NpgsqlDbType.Integer);
            arParams[0].Direction = ParameterDirection.Input;
            arParams[0].Value = moduleId;

            int rowsAffected = NpgsqlHelper.ExecuteNonQuery(
                ConnectionString.GetWriteConnectionString(),
                CommandType.Text,
                sqlCommand.ToString(),
                arParams);

            return (rowsAffected > -1);
        }

        public void Range()
        {
            using (var conn = OpenConnection())
            using (var cmd = new NpgsqlCommand("SELECT @p1, @p2, @p3, @p4", conn))
            {
                var p1 = new NpgsqlParameter("p1", NpgsqlDbType.Range | NpgsqlDbType.Integer) { Value = NpgsqlRange<int>.Empty() };
                var p2 = new NpgsqlParameter { ParameterName = "p2", Value = new NpgsqlRange<int>(1, 10) };
                var p3 = new NpgsqlParameter { ParameterName = "p3", Value = new NpgsqlRange<int>(1, false, 10, false) };
                var p4 = new NpgsqlParameter { ParameterName = "p4", Value = new NpgsqlRange<int>(0, false, true, 10, false, false) };
                Assert.That(p2.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Range | NpgsqlDbType.Integer));
                cmd.Parameters.Add(p1);
                cmd.Parameters.Add(p2);
                cmd.Parameters.Add(p3);
                cmd.Parameters.Add(p4);
                using (var reader = cmd.ExecuteReader())
                {
                    reader.Read();

                    Assert.That(reader[0].ToString(), Is.EqualTo("empty"));
                    Assert.That(reader[1].ToString(), Is.EqualTo("[1,11)"));
                    Assert.That(reader[2].ToString(), Is.EqualTo("[2,10)"));
                    Assert.That(reader[3].ToString(), Is.EqualTo("(,10)"));
                }
            }
        }

        public static Guid CreatePath(int siteId, String path)
        {
            Guid newPathID = Guid.NewGuid();

            NpgsqlParameter[] arParams = new NpgsqlParameter[4];

            arParams[0] = new NpgsqlParameter("pathid", NpgsqlTypes.NpgsqlDbType.Varchar, 36);
            arParams[0].Direction = ParameterDirection.Input;
            arParams[0].Value = newPathID;

            arParams[1] = new NpgsqlParameter("siteid", NpgsqlTypes.NpgsqlDbType.Integer);
            arParams[1].Direction = ParameterDirection.Input;
            arParams[1].Value = siteId;

            arParams[2] = new NpgsqlParameter("path", NpgsqlTypes.NpgsqlDbType.Varchar, 255);
            arParams[2].Direction = ParameterDirection.Input;
            arParams[2].Value = path;

            arParams[3] = new NpgsqlParameter("loweredpath", NpgsqlTypes.NpgsqlDbType.Varchar, 255);
            arParams[3].Direction = ParameterDirection.Input;
            arParams[3].Value = path.ToLower();

            NpgsqlHelper.ExecuteNonQuery(
                ConnectionString.GetWriteConnectionString(),
                 CommandType.StoredProcedure,
                 "mp_sitepaths_insert(:pathid,:siteid,:path,:loweredpath)",
                 arParams);

            return newPathID;
        }

 public void Bug1011018()
 {
     var p = new NpgsqlParameter();
     p.NpgsqlDbType = NpgsqlDbType.Time;
     p.Value = DateTime.Now;
     Object o = p.Value;
 }

        public static bool AddUser(
            int roleId,
            int userId,
            Guid roleGuid,
            Guid userGuid
            )
        {
            NpgsqlParameter[] arParams = new NpgsqlParameter[4];

            arParams[0] = new NpgsqlParameter("roleid", NpgsqlTypes.NpgsqlDbType.Integer);
            arParams[0].Direction = ParameterDirection.Input;
            arParams[0].Value = roleId;

            arParams[1] = new NpgsqlParameter("userid", NpgsqlTypes.NpgsqlDbType.Integer);
            arParams[1].Direction = ParameterDirection.Input;
            arParams[1].Value = userId;

            arParams[2] = new NpgsqlParameter("roleguid", NpgsqlTypes.NpgsqlDbType.Char, 36);
            arParams[2].Direction = ParameterDirection.Input;
            arParams[2].Value = roleGuid.ToString();

            arParams[3] = new NpgsqlParameter("userguid", NpgsqlTypes.NpgsqlDbType.Char, 36);
            arParams[3].Direction = ParameterDirection.Input;
            arParams[3].Value = userGuid.ToString();

            int rowsAffected = Convert.ToInt32(NpgsqlHelper.ExecuteScalar(
                ConnectionString.GetWriteConnectionString(),
                CommandType.StoredProcedure,
                "mp_userroles_insert(:roleid,:userid,:roleguid,:userguid)",
                arParams));

            return (rowsAffected > -1);
        }

        public void Constructor1()
        {
            var p = new NpgsqlParameter();
            Assert.AreEqual(DbType.String, p.DbType, "DbType");
            Assert.AreEqual(ParameterDirection.Input, p.Direction, "Direction");
            Assert.IsFalse(p.IsNullable, "IsNullable");
#if NET_2_0
            //Assert.AreEqual (0, p.LocaleId, "LocaleId");
#endif
            Assert.AreEqual(string.Empty, p.ParameterName, "ParameterName");
            Assert.AreEqual(0, p.Precision, "Precision");
            Assert.AreEqual(0, p.Scale, "Scale");
            Assert.AreEqual(0, p.Size, "Size");
            Assert.AreEqual(string.Empty, p.SourceColumn, "SourceColumn");
#if NET_2_0
            Assert.IsFalse(p.SourceColumnNullMapping, "SourceColumnNullMapping");
#endif
            Assert.AreEqual(DataRowVersion.Current, p.SourceVersion, "SourceVersion");
            Assert.AreEqual(NpgsqlDbType.Text, p.NpgsqlDbType, "NpgsqlDbType");
#if NET_2_0
            Assert.IsNull(p.NpgsqlValue, "NpgsqlValue");
#endif
            Assert.IsNull(p.Value, "Value");
#if NET_2_0
            //Assert.AreEqual (string.Empty, p.XmlSchemaCollectionDatabase, "XmlSchemaCollectionDatabase");
            //Assert.AreEqual (string.Empty, p.XmlSchemaCollectionName, "XmlSchemaCollectionName");
            //Assert.AreEqual (string.Empty, p.XmlSchemaCollectionOwningSchema, "XmlSchemaCollectionOwningSchema");
#endif
        }

 public NpgQuery Insert(string table, string[] columns, IEnumerable<object[]> values)
 {
     var valuesArray = values as object[][] ?? values.ToArray();
     var parameters = new NpgsqlParameter[columns.Length * valuesArray.Count()];
     var insertDataScript = new string[valuesArray.Count()];
     var parametersIndex = 0;
     for (var i = 0; i < valuesArray.Length; i++)
     {
         var i1 = i;
         insertDataScript[i] = string.Format(
             "({0})",
             string.Join(", ", columns.Select(c => string.Format(":{0}", c + i1))));
         var data = valuesArray[i];
         for (var j = 0; j < columns.Length; j++)
         {
             var column = columns[j];
             var value = data[j];
             parameters[parametersIndex++] = new NpgsqlParameter(column + i1, value);
         }
     }
     var scriptRow = string.Format(
         "INSERT INTO {0} ({1}) VALUES {2}",
         Quote(table),
         string.Join(", ", columns.Select(Quote)),
         string.Join(", ", insertDataScript));
     return new NpgQuery(scriptRow, parameters);
 }

 public DataTable GetDataTable(string command, NpgsqlParameter [] parameters)
 {
     DataTable dt;
     Console.WriteLine(parameters[0].Value);
     dt = SqlHelper.ExecuteDataTable(this.ConnectionString, CommandType.StoredProcedure, command, parameters);
     return dt;
 }

        /// <summary>
        /// Inserts a row in the mp_TaxClass table. Returns rows affected count.
        /// </summary>
        /// <param name="guid"> guid </param>
        /// <param name="siteGuid"> siteGuid </param>
        /// <param name="title"> title </param>
        /// <param name="description"> description </param>
        /// <param name="lastModified"> lastModified </param>
        /// <param name="created"> created </param>
        /// <returns>int</returns>
        public static int Create(
            Guid guid,
            Guid siteGuid,
            string title,
            string description,
            DateTime lastModified,
            DateTime created)
        {
            NpgsqlParameter[] arParams = new NpgsqlParameter[6];

            arParams[0] = new NpgsqlParameter("guid", NpgsqlTypes.NpgsqlDbType.Char, 36);
            arParams[0].Direction = ParameterDirection.Input;
            arParams[0].Value = guid.ToString();

            arParams[1] = new NpgsqlParameter("siteguid", NpgsqlTypes.NpgsqlDbType.Char, 36);
            arParams[1].Direction = ParameterDirection.Input;
            arParams[1].Value = siteGuid.ToString();

            arParams[2] = new NpgsqlParameter("title", NpgsqlTypes.NpgsqlDbType.Varchar, 255);
            arParams[2].Direction = ParameterDirection.Input;
            arParams[2].Value = title;

            arParams[3] = new NpgsqlParameter("description", NpgsqlTypes.NpgsqlDbType.Text);
            arParams[3].Direction = ParameterDirection.Input;
            arParams[3].Value = description;

            arParams[4] = new NpgsqlParameter("lastmodified", NpgsqlTypes.NpgsqlDbType.Timestamp);
            arParams[4].Direction = ParameterDirection.Input;
            arParams[4].Value = lastModified;

            arParams[5] = new NpgsqlParameter("created", NpgsqlTypes.NpgsqlDbType.Timestamp);
            arParams[5].Direction = ParameterDirection.Input;
            arParams[5].Value = created;

            StringBuilder sqlCommand = new StringBuilder();
            sqlCommand.Append("INSERT INTO mp_taxclass (");
            sqlCommand.Append("guid, ");
            sqlCommand.Append("siteguid, ");
            sqlCommand.Append("title, ");
            sqlCommand.Append("description, ");
            sqlCommand.Append("lastmodified, ");
            sqlCommand.Append("created )");

            sqlCommand.Append(" VALUES (");
            sqlCommand.Append(":guid, ");
            sqlCommand.Append(":siteguid, ");
            sqlCommand.Append(":title, ");
            sqlCommand.Append(":description, ");
            sqlCommand.Append(":lastmodified, ");
            sqlCommand.Append(":created ");
            sqlCommand.Append(")");
            sqlCommand.Append(";");

            int rowsAffected = NpgsqlHelper.ExecuteNonQuery(ConnectionString.GetWriteConnectionString(),
                CommandType.Text,
                sqlCommand.ToString(),
                arParams);

            return rowsAffected;
        }

        public static int Add(
            Guid guid,
            Guid siteGuid,
            string folderName)
        {
            NpgsqlParameter[] arParams = new NpgsqlParameter[3];

            arParams[0] = new NpgsqlParameter("guid", NpgsqlTypes.NpgsqlDbType.Varchar, 36);
            arParams[0].Direction = ParameterDirection.Input;
            arParams[0].Value = guid.ToString();

            arParams[1] = new NpgsqlParameter("siteguid", NpgsqlTypes.NpgsqlDbType.Varchar, 36);
            arParams[1].Direction = ParameterDirection.Input;
            arParams[1].Value = siteGuid.ToString();

            arParams[2] = new NpgsqlParameter("foldername", NpgsqlTypes.NpgsqlDbType.Varchar, 255);
            arParams[2].Direction = ParameterDirection.Input;
            arParams[2].Value = folderName;

            int rowsAffected = NpgsqlHelper.ExecuteNonQuery(ConnectionString.GetWriteConnectionString(),
                CommandType.StoredProcedure,
                "mp_sitefolders_insert(:guid,:siteguid,:foldername)",
                arParams);

            return rowsAffected;
        }

        /// <summary>
        /// Updates the TrackOrder values for the tracks that remain for the PlayerID by incrementing any Tracks that have a TrackOrder value
        /// greater than the provided trackOrder.
        /// </summary>
        /// <param name="playerID">The ID of the Player.</param>
        /// <param name="trackOrder">The TrackOrder value.</param>
        /// <returns>The number of rows affected by the update.</returns>
        public static int AdjustTrackOrdersForDelete(int playerId, int trackOrder)
        {
            StringBuilder sqlCommand = new StringBuilder();
            sqlCommand.Append("UPDATE mp_mediatrack ");
            sqlCommand.Append("SET trackorder = trackorder - 1 ");
            sqlCommand.Append("WHERE ");
            sqlCommand.Append("playerid = :playerid ");
            sqlCommand.Append("AND trackorder > :trackorder ");
            sqlCommand.Append(";");

            NpgsqlParameter[] arParams = new NpgsqlParameter[2];

            arParams[0] = new NpgsqlParameter("playerid", NpgsqlTypes.NpgsqlDbType.Integer);
            arParams[0].Direction = ParameterDirection.Input;
            arParams[0].Value = playerId;

            arParams[1] = new NpgsqlParameter("trackorder", NpgsqlTypes.NpgsqlDbType.Integer);
            arParams[1].Direction = ParameterDirection.Input;
            arParams[1].Value = trackOrder;

            int rowsAffected = NpgsqlHelper.ExecuteNonQuery(
                ConnectionString.GetWriteConnectionString(),
                CommandType.Text,
                sqlCommand.ToString(),
                arParams);

            return rowsAffected;
        }

        public void AmbiguousFunctionParameterType()
        {
            ExecuteNonQuery(@"CREATE OR REPLACE FUNCTION ambiguousParameterType(int2, int4, int8, text, varchar(10), char(5)) returns int4 as '
                                select 4 as result;
                              ' language 'sql'");
            //NpgsqlConnection conn = new NpgsqlConnection(ConnectionString);
            NpgsqlCommand command = new NpgsqlCommand("ambiguousParameterType(:a, :b, :c, :d, :e, :f)", Conn);
            command.CommandType = CommandType.StoredProcedure;
            NpgsqlParameter p = new NpgsqlParameter("a", DbType.Int16);
            p.Value = 2;
            command.Parameters.Add(p);
            p = new NpgsqlParameter("b", DbType.Int32);
            p.Value = 2;
            command.Parameters.Add(p);
            p = new NpgsqlParameter("c", DbType.Int64);
            p.Value = 2;
            command.Parameters.Add(p);
            p = new NpgsqlParameter("d", DbType.String);
            p.Value = "a";
            command.Parameters.Add(p);
            p = new NpgsqlParameter("e", NpgsqlDbType.Char);
            p.Value = "a";
            command.Parameters.Add(p);
            p = new NpgsqlParameter("f", NpgsqlDbType.Varchar);
            p.Value = "a";
            command.Parameters.Add(p);

            command.ExecuteScalar();
        }

        public void ImplicitSettingOfDbTypes()
        {
            var p = new NpgsqlParameter("p", DbType.Int32);
            Assert.That(p.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Integer));

            // As long as NpgsqlDbType/DbType aren't set explicitly, infer them from Value
            p = new NpgsqlParameter("p", 8);
            Assert.That(p.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Integer));
            Assert.That(p.DbType, Is.EqualTo(DbType.Int32));

            p.Value = 3.0;
            Assert.That(p.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Double));
            Assert.That(p.DbType, Is.EqualTo(DbType.Double));

            p.NpgsqlDbType = NpgsqlDbType.Bytea;
            Assert.That(p.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Bytea));
            Assert.That(p.DbType, Is.EqualTo(DbType.Binary));

            p.Value = "dont_change";
            Assert.That(p.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Bytea));
            Assert.That(p.DbType, Is.EqualTo(DbType.Binary));

            p = new NpgsqlParameter("p", new int[0]);
            Assert.That(p.NpgsqlDbType, Is.EqualTo(NpgsqlDbType.Array | NpgsqlDbType.Integer));
            Assert.That(p.DbType, Is.EqualTo(DbType.Object));
        }

        public static void CreatePersonalizationBlob(
            Guid userGuid,
            Guid pathId,
            byte[] dataBlob,
            DateTime lastUpdateTime)
        {
            NpgsqlParameter[] arParams = new NpgsqlParameter[5];

            arParams[0] = new NpgsqlParameter("id", NpgsqlTypes.NpgsqlDbType.Varchar, 36);
            arParams[0].Direction = ParameterDirection.Input;
            arParams[0].Value = Guid.NewGuid().ToString();

            arParams[1] = new NpgsqlParameter("userid", NpgsqlTypes.NpgsqlDbType.Varchar, 36);
            arParams[1].Direction = ParameterDirection.Input;
            arParams[1].Value = userGuid.ToString();

            arParams[2] = new NpgsqlParameter("pathid", NpgsqlTypes.NpgsqlDbType.Varchar, 36);
            arParams[2].Direction = ParameterDirection.Input;
            arParams[2].Value = pathId.ToString();

            arParams[3] = new NpgsqlParameter("pagesettings", NpgsqlTypes.NpgsqlDbType.Bytea);
            arParams[3].Direction = ParameterDirection.Input;
            arParams[3].Value = dataBlob;

            arParams[4] = new NpgsqlParameter("lastupdate", NpgsqlTypes.NpgsqlDbType.Timestamp);
            arParams[4].Direction = ParameterDirection.Input;
            arParams[4].Value = lastUpdateTime;

            NpgsqlHelper.ExecuteNonQuery(
                    ConnectionString.GetWriteConnectionString(),
                    CommandType.StoredProcedure,
                    "mp_sitepersonalizationperuser_insert(:id,:userid,:pathid,:pagesettings,:lastupdate)",
                    arParams);
        }

        public DbDataReader GetSiteSettingsExList(int siteId)
        {
            StringBuilder sqlCommand = new StringBuilder();
            sqlCommand.Append("SELECT  e.* ");

            sqlCommand.Append("FROM	mp_sitesettingsex e ");

            sqlCommand.Append("JOIN ");
            sqlCommand.Append("mp_sitesettingsexdef d ");
            sqlCommand.Append("ON ");
            sqlCommand.Append("e.keyname = d.keyname ");
            sqlCommand.Append("AND e.groupname = d.groupname ");

            sqlCommand.Append("WHERE ");
            sqlCommand.Append("e.siteid = :siteid ");

            sqlCommand.Append("ORDER BY d.groupname, d.sortorder ");
            sqlCommand.Append(";");

            NpgsqlParameter[] arParams = new NpgsqlParameter[1];

            arParams[0] = new NpgsqlParameter("siteid", NpgsqlTypes.NpgsqlDbType.Integer);
            arParams[0].Value = siteId;

            return AdoHelper.ExecuteReader(
                readConnectionString,
                CommandType.Text,
                sqlCommand.ToString(),
                arParams);

        }