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#region License
// The PostgreSQL License
//
// Copyright (C) 2018 The Npgsql Development Team
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph and the following two paragraphs appear in all copies.
//
// IN NO EVENT SHALL THE NPGSQL DEVELOPMENT TEAM BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE NPGSQL DEVELOPMENT TEAM HAS BEEN ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
// THE NPGSQL DEVELOPMENT TEAM SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE NPGSQL DEVELOPMENT TEAM HAS NO OBLIGATIONS
// TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#endregion
using System;
using System.Data;
using Npgsql;
using NpgsqlTypes;
using NUnit.Framework;
namespace Npgsql.Tests
{
public class DataAdapterTests : TestBase
{
[Test]
public void UseDataAdapter()
{
using (var conn = OpenConnection())
using (var command = new NpgsqlCommand("SELECT 1", conn))
{
var da = new NpgsqlDataAdapter();
da.SelectCommand = command;
var ds = new DataSet();
da.Fill(ds);
//ds.WriteXml("TestUseDataAdapter.xml");
}
}
[Test]
public void UseDataAdapterNpgsqlConnectionConstructor()
{
using (var conn = OpenConnection())
using (var command = new NpgsqlCommand("SELECT 1", conn))
{
command.Connection = conn;
var da = new NpgsqlDataAdapter(command);
var ds = new DataSet();
da.Fill(ds);
//ds.WriteXml("TestUseDataAdapterNpgsqlConnectionConstructor.xml");
}
}
[Test]
public void UseDataAdapterStringNpgsqlConnectionConstructor()
{
using (var conn = OpenConnection())
{
var da = new NpgsqlDataAdapter("SELECT 1", conn);
var ds = new DataSet();
da.Fill(ds);
//ds.WriteXml("TestUseDataAdapterStringNpgsqlConnectionConstructor.xml");
}
}
[Test]
public void UseDataAdapterStringStringConstructor()
{
var da = new NpgsqlDataAdapter("SELECT 1", ConnectionString);
var ds = new DataSet();
da.Fill(ds);
//ds.WriteXml("TestUseDataAdapterStringStringConstructor.xml");
}
[Test]
public void UseDataAdapterStringStringConstructor2()
{
var da = new NpgsqlDataAdapter("SELECT 1", ConnectionString);
var ds = new DataSet();
da.Fill(ds);
//ds.WriteXml("TestUseDataAdapterStringStringConstructor2.xml");
}
[Test]
[MonoIgnore("Bug in mono, submitted pull request: https://github.com/mono/mono/pull/1172")]
public void InsertWithDataSet()
{
using (var conn = OpenConnection())
{
Setup(conn);
var ds = new DataSet();
var da = new NpgsqlDataAdapter("SELECT * FROM data", conn);
da.InsertCommand = new NpgsqlCommand("INSERT INTO data (field_int2, field_timestamp, field_numeric) VALUES (:a, :b, :c)", conn);
da.InsertCommand.Parameters.Add(new NpgsqlParameter("a", DbType.Int16));
da.InsertCommand.Parameters.Add(new NpgsqlParameter("b", DbType.DateTime));
da.InsertCommand.Parameters.Add(new NpgsqlParameter("c", DbType.Decimal));
da.InsertCommand.Parameters[0].Direction = ParameterDirection.Input;
da.InsertCommand.Parameters[1].Direction = ParameterDirection.Input;
da.InsertCommand.Parameters[2].Direction = ParameterDirection.Input;
da.InsertCommand.Parameters[0].SourceColumn = "field_int2";
da.InsertCommand.Parameters[1].SourceColumn = "field_timestamp";
da.InsertCommand.Parameters[2].SourceColumn = "field_numeric";
da.Fill(ds);
var dt = ds.Tables[0];
var dr = dt.NewRow();
dr["field_int2"] = 4;
dr["field_timestamp"] = new DateTime(2003, 01, 30, 14, 0, 0);
dr["field_numeric"] = 7.3M;
dt.Rows.Add(dr);
var ds2 = ds.GetChanges();
da.Update(ds2);
ds.Merge(ds2);
ds.AcceptChanges();
var dr2 = new NpgsqlCommand("SELECT field_int2, field_numeric, field_timestamp FROM data", conn).ExecuteReader();
dr2.Read();
Assert.AreEqual(4, dr2[0]);
Assert.AreEqual(7.3000000M, dr2[1]);
dr2.Close();
}
}
[Test]
public void DataAdapterUpdateReturnValue()
{
using (var conn = OpenConnection())
{
Setup(conn);
var ds = new DataSet();
var da = new NpgsqlDataAdapter("SELECT * FROM data", conn);
da.InsertCommand = new NpgsqlCommand(@"INSERT INTO data (field_int2, field_timestamp, field_numeric) VALUES (:a, :b, :c)", conn);
da.InsertCommand.Parameters.Add(new NpgsqlParameter("a", DbType.Int16));
da.InsertCommand.Parameters.Add(new NpgsqlParameter("b", DbType.DateTime));
da.InsertCommand.Parameters.Add(new NpgsqlParameter("c", DbType.Decimal));
da.InsertCommand.Parameters[0].Direction = ParameterDirection.Input;
da.InsertCommand.Parameters[1].Direction = ParameterDirection.Input;
da.InsertCommand.Parameters[2].Direction = ParameterDirection.Input;
da.InsertCommand.Parameters[0].SourceColumn = "field_int2";
da.InsertCommand.Parameters[1].SourceColumn = "field_timestamp";
da.InsertCommand.Parameters[2].SourceColumn = "field_numeric";
da.Fill(ds);
var dt = ds.Tables[0];
var dr = dt.NewRow();
dr["field_int2"] = 4;
dr["field_timestamp"] = new DateTime(2003, 01, 30, 14, 0, 0);
dr["field_numeric"] = 7.3M;
dt.Rows.Add(dr);
dr = dt.NewRow();
dr["field_int2"] = 4;
dr["field_timestamp"] = new DateTime(2003, 01, 30, 14, 0, 0);
dr["field_numeric"] = 7.3M;
dt.Rows.Add(dr);
var ds2 = ds.GetChanges();
var daupdate = da.Update(ds2);
Assert.AreEqual(2, daupdate);
}
}
[Test]
[Ignore("")]
public void DataAdapterUpdateReturnValue2()
{
using (var conn = OpenConnection())
{
var cmd = conn.CreateCommand();
var da = new NpgsqlDataAdapter("select * from tabled", conn);
var cb = new NpgsqlCommandBuilder(da);
var ds = new DataSet();
da.Fill(ds);
//## Insert a new row with id = 1
ds.Tables[0].Rows.Add(0.4, 0.5);
da.Update(ds);
//## change id from 1 to 2
cmd.CommandText = "update tabled set field_float4 = 0.8";
cmd.ExecuteNonQuery();
//## change value to newvalue
ds.Tables[0].Rows[0][1] = 0.7;
//## update should fail, and make a DBConcurrencyException
var count = da.Update(ds);
//## count is 1, even if the isn't updated in the database
Assert.AreEqual(0, count);
}
}
[Test]
public void FillWithEmptyResultset()
{
using (var conn = OpenConnection())
{
Setup(conn);
var ds = new DataSet();
var da = new NpgsqlDataAdapter("SELECT field_serial, field_int2, field_timestamp, field_numeric FROM data WHERE field_serial = -1", conn);
da.Fill(ds);
Assert.AreEqual(1, ds.Tables.Count);
Assert.AreEqual(4, ds.Tables[0].Columns.Count);
Assert.AreEqual("field_serial", ds.Tables[0].Columns[0].ColumnName);
Assert.AreEqual("field_int2", ds.Tables[0].Columns[1].ColumnName);
Assert.AreEqual("field_timestamp", ds.Tables[0].Columns[2].ColumnName);
Assert.AreEqual("field_numeric", ds.Tables[0].Columns[3].ColumnName);
}
}
[Test]
[Ignore("")]
public void FillAddWithKey()
{
using (var conn = OpenConnection())
{
Setup(conn);
var ds = new DataSet();
var da = new NpgsqlDataAdapter("select field_serial, field_int2, field_timestamp, field_numeric from tableb", conn);
da.MissingSchemaAction = MissingSchemaAction.AddWithKey;
da.Fill(ds);
var field_serial = ds.Tables[0].Columns[0];
var field_int2 = ds.Tables[0].Columns[1];
var field_timestamp = ds.Tables[0].Columns[2];
var field_numeric = ds.Tables[0].Columns[3];
Assert.IsFalse(field_serial.AllowDBNull);
Assert.IsTrue(field_serial.AutoIncrement);
Assert.AreEqual("field_serial", field_serial.ColumnName);
Assert.AreEqual(typeof(int), field_serial.DataType);
Assert.AreEqual(0, field_serial.Ordinal);
Assert.IsTrue(field_serial.Unique);
Assert.IsTrue(field_int2.AllowDBNull);
Assert.IsFalse(field_int2.AutoIncrement);
Assert.AreEqual("field_int2", field_int2.ColumnName);
Assert.AreEqual(typeof(short), field_int2.DataType);
Assert.AreEqual(1, field_int2.Ordinal);
Assert.IsFalse(field_int2.Unique);
Assert.IsTrue(field_timestamp.AllowDBNull);
Assert.IsFalse(field_timestamp.AutoIncrement);
Assert.AreEqual("field_timestamp", field_timestamp.ColumnName);
Assert.AreEqual(typeof(DateTime), field_timestamp.DataType);
Assert.AreEqual(2, field_timestamp.Ordinal);
Assert.IsFalse(field_timestamp.Unique);
Assert.IsTrue(field_numeric.AllowDBNull);
Assert.IsFalse(field_numeric.AutoIncrement);
Assert.AreEqual("field_numeric", field_numeric.ColumnName);
Assert.AreEqual(typeof(decimal), field_numeric.DataType);
Assert.AreEqual(3, field_numeric.Ordinal);
Assert.IsFalse(field_numeric.Unique);
}
}
[Test]
public void FillAddColumns()
{
using (var conn = OpenConnection())
{
Setup(conn);
var ds = new DataSet();
var da = new NpgsqlDataAdapter(@"SELECT field_serial, field_int2, field_timestamp, field_numeric FROM data", conn);
da.MissingSchemaAction = MissingSchemaAction.Add;
da.Fill(ds);
var field_serial = ds.Tables[0].Columns[0];
var field_int2 = ds.Tables[0].Columns[1];
var field_timestamp = ds.Tables[0].Columns[2];
var field_numeric = ds.Tables[0].Columns[3];
Assert.AreEqual("field_serial", field_serial.ColumnName);
Assert.AreEqual(typeof(int), field_serial.DataType);
Assert.AreEqual(0, field_serial.Ordinal);
Assert.AreEqual("field_int2", field_int2.ColumnName);
Assert.AreEqual(typeof(short), field_int2.DataType);
Assert.AreEqual(1, field_int2.Ordinal);
Assert.AreEqual("field_timestamp", field_timestamp.ColumnName);
Assert.AreEqual(typeof(DateTime), field_timestamp.DataType);
Assert.AreEqual(2, field_timestamp.Ordinal);
Assert.AreEqual("field_numeric", field_numeric.ColumnName);
Assert.AreEqual(typeof(decimal), field_numeric.DataType);
Assert.AreEqual(3, field_numeric.Ordinal);
}
}
[Test]
[MonoIgnore("Bug in mono, submitted pull request: https://github.com/mono/mono/pull/1172")]
public void UpdateLettingNullFieldValue()
{
using (var conn = OpenConnection())
{
Setup(conn);
var command = new NpgsqlCommand(@"INSERT INTO data (field_int2) VALUES (2)", conn);
command.ExecuteNonQuery();
var ds = new DataSet();
var da = new NpgsqlDataAdapter("SELECT * FROM data", conn);
da.InsertCommand = new NpgsqlCommand(";", conn);
da.UpdateCommand = new NpgsqlCommand("UPDATE data SET field_int2 = :a, field_timestamp = :b, field_numeric = :c WHERE field_serial = :d", conn);
da.UpdateCommand.Parameters.Add(new NpgsqlParameter("a", DbType.Int16));
da.UpdateCommand.Parameters.Add(new NpgsqlParameter("b", DbType.DateTime));
da.UpdateCommand.Parameters.Add(new NpgsqlParameter("c", DbType.Decimal));
da.UpdateCommand.Parameters.Add(new NpgsqlParameter("d", NpgsqlDbType.Bigint));
da.UpdateCommand.Parameters[0].Direction = ParameterDirection.Input;
da.UpdateCommand.Parameters[1].Direction = ParameterDirection.Input;
da.UpdateCommand.Parameters[2].Direction = ParameterDirection.Input;
da.UpdateCommand.Parameters[3].Direction = ParameterDirection.Input;
da.UpdateCommand.Parameters[0].SourceColumn = "field_int2";
da.UpdateCommand.Parameters[1].SourceColumn = "field_timestamp";
da.UpdateCommand.Parameters[2].SourceColumn = "field_numeric";
da.UpdateCommand.Parameters[3].SourceColumn = "field_serial";
da.Fill(ds);
var dt = ds.Tables[0];
Assert.IsNotNull(dt);
var dr = ds.Tables[0].Rows[ds.Tables[0].Rows.Count - 1];
dr["field_int2"] = 4;
var ds2 = ds.GetChanges();
da.Update(ds2);
ds.Merge(ds2);
ds.AcceptChanges();
using (var dr2 = new NpgsqlCommand(@"SELECT field_int2 FROM data", conn).ExecuteReader())
{
dr2.Read();
Assert.AreEqual(4, dr2["field_int2"]);
}
}
}
[Test]
public void FillWithDuplicateColumnName()
{
using (var conn = OpenConnection())
{
Setup(conn);
var ds = new DataSet();
var da = new NpgsqlDataAdapter("SELECT field_serial, field_serial FROM data", conn);
da.Fill(ds);
}
}
[Test]
[Ignore("")]
public void UpdateWithDataSet()
{
DoUpdateWithDataSet();
}
public virtual void DoUpdateWithDataSet()
{
using (var conn = OpenConnection())
{
var command = new NpgsqlCommand("insert into tableb(field_int2) values (2)", conn);
command.ExecuteNonQuery();
var ds = new DataSet();
var da = new NpgsqlDataAdapter("select * from tableb", conn);
var cb = new NpgsqlCommandBuilder(da);
Assert.IsNotNull(cb);
da.Fill(ds);
var dt = ds.Tables[0];
Assert.IsNotNull(dt);
var dr = ds.Tables[0].Rows[ds.Tables[0].Rows.Count - 1];
dr["field_int2"] = 4;
var ds2 = ds.GetChanges();
da.Update(ds2);
ds.Merge(ds2);
ds.AcceptChanges();
using (var dr2 = new NpgsqlCommand("select * from tableb", conn).ExecuteReader())
{
dr2.Read();
Assert.AreEqual(4, dr2["field_int2"]);
}
}
}
[Test]
[Ignore("")]
public void InsertWithCommandBuilderCaseSensitive()
{
DoInsertWithCommandBuilderCaseSensitive();
}
public virtual void DoInsertWithCommandBuilderCaseSensitive()
{
using (var conn = OpenConnection())
{
var ds = new DataSet();
var da = new NpgsqlDataAdapter("select * from tablei", conn);
var builder = new NpgsqlCommandBuilder(da);
Assert.IsNotNull(builder);
da.Fill(ds);
var dt = ds.Tables[0];
var dr = dt.NewRow();
dr["Field_Case_Sensitive"] = 4;
dt.Rows.Add(dr);
var ds2 = ds.GetChanges();
da.Update(ds2);
ds.Merge(ds2);
ds.AcceptChanges();
using (var dr2 = new NpgsqlCommand("select * from tablei", conn).ExecuteReader())
{
dr2.Read();
Assert.AreEqual(4, dr2[1]);
}
}
}
[Test]
public void IntervalAsTimeSpan()
{
using (var conn = OpenConnection())
{
conn.ExecuteNonQuery(@"CREATE TEMP TABLE data (" +
" pk SERIAL PRIMARY KEY, " +
" interval INTERVAL" +
")");
conn.ExecuteNonQuery(@"INSERT INTO data (interval) VALUES ('1 hour'::INTERVAL)");
var dt = new DataTable("data");
var command = new NpgsqlCommand
{
CommandType = CommandType.Text,
CommandText = "SELECT interval FROM data",
Connection = conn
};
var da = new NpgsqlDataAdapter {SelectCommand = command};
da.Fill(dt);
foreach (DataRow dr in dt.Rows)
{
//Console.Out.WriteLine(dr["interval"]);
}
}
}
[Test]
public void IntervalAsTimeSpan2()
{
using (var conn = OpenConnection())
{
conn.ExecuteNonQuery(@"CREATE TEMP TABLE data (" +
" pk SERIAL PRIMARY KEY, " +
" interval INTERVAL" +
")");
conn.ExecuteNonQuery(@"INSERT INTO data (interval) VALUES ('1 hour'::INTERVAL)");
var dt = new DataTable("data");
//DataColumn c = dt.Columns.Add("dauer", typeof(TimeSpan));
// DataColumn c = dt.Columns.Add("dauer", typeof(NpgsqlInterval));
//c.AllowDBNull = true;
var command = new NpgsqlCommand();
command.CommandType = CommandType.Text;
command.CommandText = "SELECT interval FROM data";
command.Connection = conn;
var da = new NpgsqlDataAdapter();
da.SelectCommand = command;
da.Fill(dt);
foreach (DataRow dr in dt.Rows)
{
//Console.Out.WriteLine(dr["interval"]);
}
}
}
[Test]
public void DbDataAdapterCommandAccess()
{
using (var conn = OpenConnection())
using (var command = new NpgsqlCommand("SELECT CAST('1 hour' AS interval) AS dauer", conn))
{
Setup(conn);
var da = new NpgsqlDataAdapter();
da.SelectCommand = command;
System.Data.Common.DbDataAdapter common = da;
Assert.IsNotNull(common.SelectCommand);
}
}
[Test, Description("Makes sure that the INSERT/UPDATE/DELETE commands are auto-populated on NpgsqlDataAdapter")]
[IssueLink("https://github.com/npgsql/npgsql/issues/179")]
[Ignore("Somehow related to us using a temporary table???")]
public void AutoPopulateAdapterCommands()
{
using (var conn = OpenConnection())
{
Setup(conn);
var da = new NpgsqlDataAdapter("SELECT field_pk,field_int4 FROM data", conn);
var builder = new NpgsqlCommandBuilder(da);
var ds = new DataSet();
da.Fill(ds);
var table = ds.Tables[0];
var row = table.NewRow();
row["field_pk"] = 1;
row["field_int4"] = 8;
table.Rows.Add(row);
da.Update(ds);
Assert.That(conn.ExecuteScalar(@"SELECT field_int4 FROM data"), Is.EqualTo(8));
row["field_int4"] = 9;
da.Update(ds);
Assert.That(conn.ExecuteScalar(@"SELECT field_int4 FROM data"), Is.EqualTo(9));
row.Delete();
da.Update(ds);
Assert.That(conn.ExecuteScalar(@"SELECT COUNT(*) FROM data"), Is.EqualTo(0));
}
}
[Test]
public void CommandBuilderQuoting()
{
var cb = new NpgsqlCommandBuilder();
const string orig = "some\"column";
var quoted = cb.QuoteIdentifier(orig);
Assert.That(quoted, Is.EqualTo("\"some\"\"column\""));
Assert.That(cb.UnquoteIdentifier(quoted), Is.EqualTo(orig));
}
[Test, Description("Makes sure a correct SQL string is built with GetUpdateCommand(true) using correct parameter names and placeholders")]
[IssueLink("https://github.com/npgsql/npgsql/issues/397")]
[Ignore("Somehow related to us using a temporary table???")]
public void GetUpdateCommand()
{
using (var conn = OpenConnection())
{
Setup(conn);
using (var da = new NpgsqlDataAdapter("SELECT field_pk, field_int4 FROM data", conn))
{
using (var cb = new NpgsqlCommandBuilder(da))
{
var updateCommand = cb.GetUpdateCommand(true);
da.UpdateCommand = updateCommand;
var ds = new DataSet();
da.Fill(ds);
var table = ds.Tables[0];
var row = table.Rows.Add();
row["field_pk"] = 1;
row["field_int4"] = 1;
da.Update(ds);
row["field_int4"] = 2;
da.Update(ds);
row.Delete();
da.Update(ds);
}
}
}
}
[Test]
public void LoadDataTable()
{
using (var conn = OpenConnection())
{
conn.ExecuteNonQuery("CREATE TEMP TABLE data (char5 CHAR(5), varchar5 VARCHAR(5))");
using (var command = new NpgsqlCommand("SELECT char5, varchar5 FROM data", conn))
using (var dr = command.ExecuteReader())
{
var dt = new DataTable();
dt.Load(dr);
dr.Close();
Assert.AreEqual(5, dt.Columns[0].MaxLength);
Assert.AreEqual(5, dt.Columns[1].MaxLength);
}
}
}
public void Setup(NpgsqlConnection conn)
{
conn.ExecuteNonQuery("CREATE TEMP TABLE data (" +
"field_pk SERIAL PRIMARY KEY," +
"field_serial SERIAL," +
"field_int2 SMALLINT," +
"field_int4 INTEGER," +
"field_numeric NUMERIC," +
"field_timestamp TIMESTAMP" +
")");
}
}
}