mirror of
https://github.com/Sonarr/Sonarr.git
synced 2024-12-12 11:15:43 +02:00
882 lines
32 KiB
C#
882 lines
32 KiB
C#
#region License
|
|
|
|
//The contents of this file are subject to the Mozilla Public License
|
|
//Version 1.1 (the "License"); you may not use this file except in
|
|
//compliance with the License. You may obtain a copy of the License at
|
|
//http://www.mozilla.org/MPL/
|
|
//Software distributed under the License is distributed on an "AS IS"
|
|
//basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
|
|
//License for the specific language governing rights and limitations
|
|
//under the License.
|
|
|
|
#endregion
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Data;
|
|
using Migrator.Framework;
|
|
using Migrator.Framework.SchemaBuilder;
|
|
using ForeignKeyConstraint = Migrator.Framework.ForeignKeyConstraint;
|
|
using Migrator.Framework.Loggers;
|
|
|
|
namespace Migrator.Providers
|
|
{
|
|
/// <summary>
|
|
/// Base class for every transformation providers.
|
|
/// A 'tranformation' is an operation that modifies the database.
|
|
/// </summary>
|
|
public abstract class TransformationProvider : ITransformationProvider
|
|
{
|
|
private ILogger _logger;
|
|
protected IDbConnection _connection;
|
|
private IDbTransaction _transaction;
|
|
private List<long> _appliedMigrations;
|
|
|
|
protected readonly string _connectionString;
|
|
protected Dialect _dialect;
|
|
|
|
private readonly ForeignKeyConstraintMapper constraintMapper = new ForeignKeyConstraintMapper();
|
|
|
|
protected TransformationProvider(Dialect dialect, string connectionString)
|
|
{
|
|
_dialect = dialect;
|
|
_connectionString = connectionString;
|
|
_logger = new Logger(false);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns the event logger
|
|
/// </summary>
|
|
public virtual ILogger Logger
|
|
{
|
|
get { return _logger; }
|
|
set { _logger = value; }
|
|
}
|
|
|
|
public Dialect Dialect
|
|
{
|
|
get { return _dialect; }
|
|
}
|
|
|
|
public ITransformationProvider this[string provider]
|
|
{
|
|
get
|
|
{
|
|
if (null != provider && IsThisProvider(provider))
|
|
return this;
|
|
|
|
return NoOpTransformationProvider.Instance;
|
|
}
|
|
}
|
|
|
|
public bool IsThisProvider(string provider)
|
|
{
|
|
// XXX: This might need to be more sophisticated. Currently just a convention
|
|
return GetType().Name.ToLower().StartsWith(provider.ToLower());
|
|
}
|
|
|
|
public virtual Column[] GetColumns(string table)
|
|
{
|
|
List<Column> columns = new List<Column>();
|
|
using (
|
|
IDataReader reader =
|
|
ExecuteQuery(
|
|
String.Format("select COLUMN_NAME, IS_NULLABLE from information_schema.columns where table_name = '{0}'", table)))
|
|
{
|
|
while (reader.Read())
|
|
{
|
|
Column column = new Column(reader.GetString(0), DbType.String);
|
|
string nullableStr = reader.GetString(1);
|
|
bool isNullable = nullableStr == "YES";
|
|
column.ColumnProperty |= isNullable ? ColumnProperty.Null : ColumnProperty.NotNull;
|
|
|
|
columns.Add(column);
|
|
}
|
|
}
|
|
|
|
return columns.ToArray();
|
|
}
|
|
|
|
public virtual Column GetColumnByName(string table, string columnName)
|
|
{
|
|
return Array.Find(GetColumns(table),
|
|
delegate(Column column)
|
|
{
|
|
return column.Name == columnName;
|
|
});
|
|
}
|
|
|
|
public virtual string[] GetTables()
|
|
{
|
|
List<string> tables = new List<string>();
|
|
using (IDataReader reader = ExecuteQuery("SELECT table_name FROM information_schema.tables"))
|
|
{
|
|
while (reader.Read())
|
|
{
|
|
tables.Add((string)reader[0]);
|
|
}
|
|
}
|
|
return tables.ToArray();
|
|
}
|
|
|
|
public virtual void RemoveForeignKey(string table, string name)
|
|
{
|
|
RemoveConstraint(table, name);
|
|
}
|
|
|
|
public virtual void RemoveConstraint(string table, string name)
|
|
{
|
|
if (TableExists(table) && ConstraintExists(table, name))
|
|
{
|
|
table = _dialect.TableNameNeedsQuote ? _dialect.Quote(table) : table;
|
|
name = _dialect.ConstraintNameNeedsQuote ? _dialect.Quote(name) : name;
|
|
ExecuteNonQuery(String.Format("ALTER TABLE {0} DROP CONSTRAINT {1}", table, name));
|
|
}
|
|
}
|
|
|
|
public void RemoveIndex(string table, string name)
|
|
{
|
|
throw new NotImplementedException();
|
|
}
|
|
|
|
public virtual void AddTable(string table, string engine, string columns)
|
|
{
|
|
table = _dialect.TableNameNeedsQuote ? _dialect.Quote(table) : table;
|
|
string sqlCreate = String.Format("CREATE TABLE {0} ({1})", table, columns);
|
|
ExecuteNonQuery(sqlCreate);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add a new table
|
|
/// </summary>
|
|
/// <param name="name">Table name</param>
|
|
/// <param name="columns">Columns</param>
|
|
/// <example>
|
|
/// Adds the Test table with two columns:
|
|
/// <code>
|
|
/// Database.AddTable("Test",
|
|
/// new Column("Id", typeof(int), ColumnProperty.PrimaryKey),
|
|
/// new Column("Title", typeof(string), 100)
|
|
/// );
|
|
/// </code>
|
|
/// </example>
|
|
public virtual void AddTable(string name, params Column[] columns)
|
|
{
|
|
// Most databases don't have the concept of a storage engine, so default is to not use it.
|
|
AddTable(name, null, columns);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add a new table
|
|
/// </summary>
|
|
/// <param name="name">Table name</param>
|
|
/// <param name="columns">Columns</param>
|
|
/// <param name="engine">the database storage engine to use</param>
|
|
/// <example>
|
|
/// Adds the Test table with two columns:
|
|
/// <code>
|
|
/// Database.AddTable("Test", "INNODB",
|
|
/// new Column("Id", typeof(int), ColumnProperty.PrimaryKey),
|
|
/// new Column("Title", typeof(string), 100)
|
|
/// );
|
|
/// </code>
|
|
/// </example>
|
|
public virtual void AddTable(string name, string engine, params Column[] columns)
|
|
{
|
|
|
|
if (TableExists(name))
|
|
{
|
|
Logger.Warn("Table {0} already exists", name);
|
|
return;
|
|
}
|
|
|
|
List<string> pks = GetPrimaryKeys(columns);
|
|
bool compoundPrimaryKey = pks.Count > 1;
|
|
|
|
List<ColumnPropertiesMapper> columnProviders = new List<ColumnPropertiesMapper>(columns.Length);
|
|
foreach (Column column in columns)
|
|
{
|
|
// Remove the primary key notation if compound primary key because we'll add it back later
|
|
if (compoundPrimaryKey && column.IsPrimaryKey)
|
|
column.ColumnProperty = ColumnProperty.Unsigned | ColumnProperty.NotNull;
|
|
|
|
ColumnPropertiesMapper mapper = _dialect.GetAndMapColumnProperties(column);
|
|
columnProviders.Add(mapper);
|
|
}
|
|
|
|
string columnsAndIndexes = JoinColumnsAndIndexes(columnProviders);
|
|
AddTable(name, engine, columnsAndIndexes);
|
|
|
|
if (compoundPrimaryKey)
|
|
{
|
|
AddPrimaryKey(String.Format("PK_{0}", name), name, pks.ToArray());
|
|
}
|
|
}
|
|
|
|
public List<string> GetPrimaryKeys(IEnumerable<Column> columns)
|
|
{
|
|
List<string> pks = new List<string>();
|
|
foreach (Column col in columns)
|
|
{
|
|
if (col.IsPrimaryKey)
|
|
pks.Add(col.Name);
|
|
}
|
|
return pks;
|
|
}
|
|
|
|
public virtual void RemoveTable(string name)
|
|
{
|
|
if (TableExists(name))
|
|
ExecuteNonQuery(String.Format("DROP TABLE {0}", name));
|
|
}
|
|
|
|
public virtual void RenameTable(string oldName, string newName)
|
|
{
|
|
if (TableExists(newName))
|
|
throw new MigrationException(String.Format("Table with name '{0}' already exists", newName));
|
|
|
|
if (TableExists(oldName))
|
|
ExecuteNonQuery(String.Format("ALTER TABLE {0} RENAME TO {1}", oldName, newName));
|
|
}
|
|
|
|
public virtual void RenameColumn(string tableName, string oldColumnName, string newColumnName)
|
|
{
|
|
if (ColumnExists(tableName, newColumnName))
|
|
throw new MigrationException(String.Format("Table '{0}' has column named '{1}' already", tableName, newColumnName));
|
|
|
|
if (ColumnExists(tableName, oldColumnName))
|
|
ExecuteNonQuery(String.Format("ALTER TABLE {0} RENAME COLUMN {1} TO {2}", tableName, oldColumnName, newColumnName));
|
|
}
|
|
|
|
public virtual void AddColumn(string table, string sqlColumn)
|
|
{
|
|
ExecuteNonQuery(String.Format("ALTER TABLE {0} ADD COLUMN {1}", table, sqlColumn));
|
|
}
|
|
|
|
public virtual void RemoveColumn(string table, string column)
|
|
{
|
|
if (ColumnExists(table, column))
|
|
{
|
|
ExecuteNonQuery(String.Format("ALTER TABLE {0} DROP COLUMN {1} ", table, column));
|
|
}
|
|
}
|
|
|
|
public virtual bool ColumnExists(string table, string column)
|
|
{
|
|
try
|
|
{
|
|
ExecuteNonQuery(String.Format("SELECT {0} FROM {1}", column, table));
|
|
return true;
|
|
}
|
|
catch (Exception)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public virtual void ChangeColumn(string table, Column column)
|
|
{
|
|
if (!ColumnExists(table, column.Name))
|
|
{
|
|
Logger.Warn("Column {0}.{1} does not exist", table, column.Name);
|
|
return;
|
|
}
|
|
|
|
ColumnPropertiesMapper mapper = _dialect.GetAndMapColumnProperties(column);
|
|
ChangeColumn(table, mapper.ColumnSql);
|
|
}
|
|
|
|
public virtual void ChangeColumn(string table, string sqlColumn)
|
|
{
|
|
ExecuteNonQuery(String.Format("ALTER TABLE {0} ALTER COLUMN {1}", table, sqlColumn));
|
|
}
|
|
|
|
public virtual bool TableExists(string table)
|
|
{
|
|
try
|
|
{
|
|
ExecuteNonQuery("SELECT COUNT(*) FROM " + table);
|
|
return true;
|
|
}
|
|
catch (Exception)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
protected virtual string JoinColumnsAndIndexes(IEnumerable<ColumnPropertiesMapper> columns)
|
|
{
|
|
string indexes = JoinIndexes(columns);
|
|
string columnsAndIndexes = JoinColumns(columns) + (indexes != null ? "," + indexes : String.Empty);
|
|
return columnsAndIndexes;
|
|
}
|
|
|
|
protected virtual string JoinIndexes(IEnumerable<ColumnPropertiesMapper> columns)
|
|
{
|
|
List<string> indexes = new List<string>();
|
|
foreach (ColumnPropertiesMapper column in columns)
|
|
{
|
|
string indexSql = column.IndexSql;
|
|
if (indexSql != null)
|
|
indexes.Add(indexSql);
|
|
}
|
|
|
|
if (indexes.Count == 0)
|
|
return null;
|
|
|
|
return String.Join(", ", indexes.ToArray());
|
|
}
|
|
|
|
protected virtual string JoinColumns(IEnumerable<ColumnPropertiesMapper> columns)
|
|
{
|
|
List<string> columnStrings = new List<string>();
|
|
foreach (ColumnPropertiesMapper column in columns)
|
|
columnStrings.Add(column.ColumnSql);
|
|
return String.Join(", ", columnStrings.ToArray());
|
|
}
|
|
|
|
/// <summary>
|
|
/// Add a new column to an existing table.
|
|
/// </summary>
|
|
/// <param name="table">Table to which to add the column</param>
|
|
/// <param name="column">Column name</param>
|
|
/// <param name="type">Date type of the column</param>
|
|
/// <param name="size">Max length of the column</param>
|
|
/// <param name="property">Properties of the column, see <see cref="ColumnProperty">ColumnProperty</see>,</param>
|
|
/// <param name="defaultValue">Default value</param>
|
|
public virtual void AddColumn(string table, string column, DbType type, int size, ColumnProperty property,
|
|
object defaultValue)
|
|
{
|
|
if (ColumnExists(table, column))
|
|
{
|
|
Logger.Warn("Column {0}.{1} already exists", table, column);
|
|
return;
|
|
}
|
|
|
|
ColumnPropertiesMapper mapper =
|
|
_dialect.GetAndMapColumnProperties(new Column(column, type, size, property, defaultValue));
|
|
|
|
AddColumn(table, mapper.ColumnSql);
|
|
}
|
|
|
|
/// <summary>
|
|
/// <see cref="TransformationProvider.AddColumn(string, string, DbType, int, ColumnProperty, object)">
|
|
/// AddColumn(string, string, Type, int, ColumnProperty, object)
|
|
/// </see>
|
|
/// </summary>
|
|
public virtual void AddColumn(string table, string column, DbType type)
|
|
{
|
|
AddColumn(table, column, type, 0, ColumnProperty.Null, null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// <see cref="TransformationProvider.AddColumn(string, string, DbType, int, ColumnProperty, object)">
|
|
/// AddColumn(string, string, Type, int, ColumnProperty, object)
|
|
/// </see>
|
|
/// </summary>
|
|
public virtual void AddColumn(string table, string column, DbType type, int size)
|
|
{
|
|
AddColumn(table, column, type, size, ColumnProperty.Null, null);
|
|
}
|
|
|
|
public void AddColumn(string table, string column, DbType type, object defaultValue)
|
|
{
|
|
if (ColumnExists(table, column))
|
|
{
|
|
Logger.Warn("Column {0}.{1} already exists", table, column);
|
|
return;
|
|
}
|
|
|
|
ColumnPropertiesMapper mapper =
|
|
_dialect.GetAndMapColumnProperties(new Column(column, type, defaultValue));
|
|
|
|
AddColumn(table, mapper.ColumnSql);
|
|
|
|
}
|
|
|
|
/// <summary>
|
|
/// <see cref="TransformationProvider.AddColumn(string, string, DbType, int, ColumnProperty, object)">
|
|
/// AddColumn(string, string, Type, int, ColumnProperty, object)
|
|
/// </see>
|
|
/// </summary>
|
|
public virtual void AddColumn(string table, string column, DbType type, ColumnProperty property)
|
|
{
|
|
AddColumn(table, column, type, 0, property, null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// <see cref="TransformationProvider.AddColumn(string, string, DbType, int, ColumnProperty, object)">
|
|
/// AddColumn(string, string, Type, int, ColumnProperty, object)
|
|
/// </see>
|
|
/// </summary>
|
|
public virtual void AddColumn(string table, string column, DbType type, int size, ColumnProperty property)
|
|
{
|
|
AddColumn(table, column, type, size, property, null);
|
|
}
|
|
|
|
public void AddIndex(string name, string table, bool unique, params string[] columns)
|
|
{
|
|
try
|
|
{
|
|
var uniqueText = "";
|
|
if (unique) uniqueText = "UNIQUE";
|
|
|
|
var command = String.Format("CREATE {0} INDEX {1} ON {2} ({3})", uniqueText, name, table, String.Join(",", columns));
|
|
|
|
ExecuteNonQuery(command);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Logger.Exception("Unable to add index", e);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Append a primary key to a table.
|
|
/// </summary>
|
|
/// <param name="name">Constraint name</param>
|
|
/// <param name="table">Table name</param>
|
|
/// <param name="columns">Primary column names</param>
|
|
public virtual void AddPrimaryKey(string name, string table, params string[] columns)
|
|
{
|
|
if (ConstraintExists(table, name))
|
|
{
|
|
Logger.Warn("Primary key {0} already exists", name);
|
|
return;
|
|
}
|
|
ExecuteNonQuery(
|
|
String.Format("ALTER TABLE {0} ADD CONSTRAINT {1} PRIMARY KEY ({2}) ", table, name,
|
|
String.Join(",", columns)));
|
|
}
|
|
|
|
public virtual void AddUniqueConstraint(string name, string table, params string[] columns)
|
|
{
|
|
if (ConstraintExists(table, name))
|
|
{
|
|
Logger.Warn("Constraint {0} already exists", name);
|
|
return;
|
|
}
|
|
ExecuteNonQuery(String.Format("ALTER TABLE {0} ADD CONSTRAINT {1} UNIQUE({2}) ", table, name, string.Join(", ", columns)));
|
|
}
|
|
|
|
public virtual void AddCheckConstraint(string name, string table, string checkSql)
|
|
{
|
|
if (ConstraintExists(table, name))
|
|
{
|
|
Logger.Warn("Constraint {0} already exists", name);
|
|
return;
|
|
}
|
|
ExecuteNonQuery(String.Format("ALTER TABLE {0} ADD CONSTRAINT {1} CHECK ({2}) ", table, name, checkSql));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Guesses the name of the foreign key and add it
|
|
/// </summary>
|
|
public virtual void GenerateForeignKey(string primaryTable, string primaryColumn, string refTable, string refColumn)
|
|
{
|
|
AddForeignKey("FK_" + primaryTable + "_" + refTable, primaryTable, primaryColumn, refTable, refColumn);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Guesses the name of the foreign key and add it
|
|
/// </see>
|
|
/// </summary>
|
|
public virtual void GenerateForeignKey(string primaryTable, string[] primaryColumns, string refTable,
|
|
string[] refColumns)
|
|
{
|
|
AddForeignKey("FK_" + primaryTable + "_" + refTable, primaryTable, primaryColumns, refTable, refColumns);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Guesses the name of the foreign key and add it
|
|
/// </summary>
|
|
public virtual void GenerateForeignKey(string primaryTable, string primaryColumn, string refTable,
|
|
string refColumn, ForeignKeyConstraint constraint)
|
|
{
|
|
AddForeignKey("FK_" + primaryTable + "_" + refTable, primaryTable, primaryColumn, refTable, refColumn,
|
|
constraint);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Guesses the name of the foreign key and add it
|
|
/// </see>
|
|
/// </summary>
|
|
public virtual void GenerateForeignKey(string primaryTable, string[] primaryColumns, string refTable,
|
|
string[] refColumns, ForeignKeyConstraint constraint)
|
|
{
|
|
AddForeignKey("FK_" + primaryTable + "_" + refTable, primaryTable, primaryColumns, refTable, refColumns,
|
|
constraint);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Append a foreign key (relation) between two tables.
|
|
/// tables.
|
|
/// </summary>
|
|
/// <param name="name">Constraint name</param>
|
|
/// <param name="primaryTable">Table name containing the primary key</param>
|
|
/// <param name="primaryColumn">Primary key column name</param>
|
|
/// <param name="refTable">Foreign table name</param>
|
|
/// <param name="refColumn">Foreign column name</param>
|
|
public virtual void AddForeignKey(string name, string primaryTable, string primaryColumn, string refTable,
|
|
string refColumn)
|
|
{
|
|
AddForeignKey(name, primaryTable, new string[] { primaryColumn }, refTable, new string[] { refColumn });
|
|
}
|
|
|
|
/// <summary>
|
|
/// <see cref="ITransformationProvider.AddForeignKey(string, string, string, string, string)">
|
|
/// AddForeignKey(string, string, string, string, string)
|
|
/// </see>
|
|
/// </summary>
|
|
public virtual void AddForeignKey(string name, string primaryTable, string[] primaryColumns, string refTable, string[] refColumns)
|
|
{
|
|
AddForeignKey(name, primaryTable, primaryColumns, refTable, refColumns, ForeignKeyConstraint.NoAction);
|
|
}
|
|
|
|
public virtual void AddForeignKey(string name, string primaryTable, string primaryColumn, string refTable, string refColumn, ForeignKeyConstraint constraint)
|
|
{
|
|
AddForeignKey(name, primaryTable, new string[] { primaryColumn }, refTable, new string[] { refColumn },
|
|
constraint);
|
|
}
|
|
|
|
public virtual void AddForeignKey(string name, string primaryTable, string[] primaryColumns, string refTable,
|
|
string[] refColumns, ForeignKeyConstraint constraint)
|
|
{
|
|
if (ConstraintExists(primaryTable, name))
|
|
{
|
|
Logger.Warn("Constraint {0} already exists", name);
|
|
return;
|
|
}
|
|
|
|
string constraintResolved = constraintMapper.SqlForConstraint(constraint);
|
|
ExecuteNonQuery(
|
|
String.Format(
|
|
"ALTER TABLE {0} ADD CONSTRAINT {1} FOREIGN KEY ({2}) REFERENCES {3} ({4}) ON UPDATE {5} ON DELETE {6}",
|
|
primaryTable, name, String.Join(",", primaryColumns),
|
|
refTable, String.Join(",", refColumns), constraintResolved, constraintResolved));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines if a constraint exists.
|
|
/// </summary>
|
|
/// <param name="name">Constraint name</param>
|
|
/// <param name="table">Table owning the constraint</param>
|
|
/// <returns><c>true</c> if the constraint exists.</returns>
|
|
public abstract bool ConstraintExists(string table, string name);
|
|
|
|
public virtual bool PrimaryKeyExists(string table, string name)
|
|
{
|
|
return ConstraintExists(table, name);
|
|
}
|
|
|
|
public int ExecuteNonQuery(string sql)
|
|
{
|
|
Logger.Trace(sql);
|
|
Logger.ApplyingDBChange(sql);
|
|
using (IDbCommand cmd = BuildCommand(sql))
|
|
{
|
|
try
|
|
{
|
|
return cmd.ExecuteNonQuery();
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.Warn(ex.Message);
|
|
throw;
|
|
}
|
|
}
|
|
}
|
|
|
|
private IDbCommand BuildCommand(string sql)
|
|
{
|
|
IDbCommand cmd = _connection.CreateCommand();
|
|
cmd.CommandText = sql;
|
|
cmd.CommandType = CommandType.Text;
|
|
if (_transaction != null)
|
|
{
|
|
cmd.Transaction = _transaction;
|
|
}
|
|
return cmd;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Execute an SQL query returning results.
|
|
/// </summary>
|
|
/// <param name="sql">The SQL command.</param>
|
|
/// <returns>A data iterator, <see cref="System.Data.IDataReader">IDataReader</see>.</returns>
|
|
public IDataReader ExecuteQuery(string sql)
|
|
{
|
|
Logger.Trace(sql);
|
|
using (IDbCommand cmd = BuildCommand(sql))
|
|
{
|
|
try
|
|
{
|
|
return cmd.ExecuteReader();
|
|
}
|
|
catch
|
|
{
|
|
Logger.Warn("query failed: {0}", cmd.CommandText);
|
|
throw;
|
|
}
|
|
}
|
|
}
|
|
|
|
public object ExecuteScalar(string sql)
|
|
{
|
|
Logger.Trace(sql);
|
|
using (IDbCommand cmd = BuildCommand(sql))
|
|
{
|
|
try
|
|
{
|
|
return cmd.ExecuteScalar();
|
|
}
|
|
catch
|
|
{
|
|
Logger.Warn("Query failed: {0}", cmd.CommandText);
|
|
throw;
|
|
}
|
|
}
|
|
}
|
|
|
|
public IDataReader Select(string what, string from)
|
|
{
|
|
return Select(what, from, "1=1");
|
|
}
|
|
|
|
public virtual IDataReader Select(string what, string from, string where)
|
|
{
|
|
return ExecuteQuery(String.Format("SELECT {0} FROM {1} WHERE {2}", what, from, where));
|
|
}
|
|
|
|
public object SelectScalar(string what, string from)
|
|
{
|
|
return SelectScalar(what, from, "1=1");
|
|
}
|
|
|
|
public virtual object SelectScalar(string what, string from, string where)
|
|
{
|
|
return ExecuteScalar(String.Format("SELECT {0} FROM {1} WHERE {2}", what, from, where));
|
|
}
|
|
|
|
public virtual int Update(string table, string[] columns, string[] values)
|
|
{
|
|
return Update(table, columns, values, null);
|
|
}
|
|
|
|
public virtual int Update(string table, string[] columns, string[] values, string where)
|
|
{
|
|
string namesAndValues = JoinColumnsAndValues(columns, values);
|
|
|
|
string query = "UPDATE {0} SET {1}";
|
|
if (!String.IsNullOrEmpty(where))
|
|
{
|
|
query += " WHERE " + where;
|
|
}
|
|
|
|
return ExecuteNonQuery(String.Format(query, table, namesAndValues));
|
|
}
|
|
|
|
public virtual int Insert(string table, string[] columns, string[] values)
|
|
{
|
|
return ExecuteNonQuery(String.Format("INSERT INTO {0} ({1}) VALUES ({2})", table, String.Join(", ", columns), String.Join(", ", QuoteValues(values))));
|
|
}
|
|
|
|
public virtual int Delete(string table)
|
|
{
|
|
return Delete(table, (string[])null, (string[])null);
|
|
}
|
|
|
|
public virtual int Delete(string table, string[] columns, string[] values)
|
|
{
|
|
if (null == columns || null == values)
|
|
{
|
|
return ExecuteNonQuery(String.Format("DELETE FROM {0}", table));
|
|
}
|
|
else
|
|
{
|
|
return ExecuteNonQuery(String.Format("DELETE FROM {0} WHERE ({1})", table, JoinColumnsAndValues(columns, values)));
|
|
}
|
|
}
|
|
|
|
public virtual int Delete(string table, string wherecolumn, string wherevalue)
|
|
{
|
|
return ExecuteNonQuery(String.Format("DELETE FROM {0} WHERE {1} = {2}", table, wherecolumn, QuoteValues(wherevalue)));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Starts a transaction. Called by the migration mediator.
|
|
/// </summary>
|
|
public void BeginTransaction()
|
|
{
|
|
if (_transaction == null && _connection != null)
|
|
{
|
|
EnsureHasConnection();
|
|
_transaction = _connection.BeginTransaction(IsolationLevel.ReadCommitted);
|
|
}
|
|
}
|
|
|
|
protected void EnsureHasConnection()
|
|
{
|
|
if (_connection.State != ConnectionState.Open)
|
|
{
|
|
_connection.Open();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Rollback the current migration. Called by the migration mediator.
|
|
/// </summary>
|
|
public virtual void Rollback()
|
|
{
|
|
if (_transaction != null && _connection != null && _connection.State == ConnectionState.Open)
|
|
{
|
|
try
|
|
{
|
|
_transaction.Rollback();
|
|
}
|
|
finally
|
|
{
|
|
_connection.Close();
|
|
}
|
|
}
|
|
_transaction = null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Commit the current transaction. Called by the migrations mediator.
|
|
/// </summary>
|
|
public void Commit()
|
|
{
|
|
if (_transaction != null && _connection != null && _connection.State == ConnectionState.Open)
|
|
{
|
|
try
|
|
{
|
|
_transaction.Commit();
|
|
}
|
|
finally
|
|
{
|
|
_connection.Close();
|
|
}
|
|
}
|
|
_transaction = null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// The list of Migrations currently applied to the database.
|
|
/// </summary>
|
|
public List<long> AppliedMigrations
|
|
{
|
|
get
|
|
{
|
|
if (_appliedMigrations == null)
|
|
{
|
|
_appliedMigrations = new List<long>();
|
|
CreateSchemaInfoTable();
|
|
using (IDataReader reader = Select("version", "SchemaInfo"))
|
|
{
|
|
while (reader.Read())
|
|
{
|
|
_appliedMigrations.Add(Convert.ToInt64(reader.GetValue(0)));
|
|
}
|
|
}
|
|
}
|
|
return _appliedMigrations;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Marks a Migration version number as having been applied
|
|
/// </summary>
|
|
/// <param name="version">The version number of the migration that was applied</param>
|
|
public void MigrationApplied(long version)
|
|
{
|
|
CreateSchemaInfoTable();
|
|
Insert("SchemaInfo", new string[] { "version" }, new string[] { version.ToString() });
|
|
_appliedMigrations.Add(version);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Marks a Migration version number as having been rolled back from the database
|
|
/// </summary>
|
|
/// <param name="version">The version number of the migration that was removed</param>
|
|
public void MigrationUnApplied(long version)
|
|
{
|
|
CreateSchemaInfoTable();
|
|
Delete("SchemaInfo", "version", version.ToString());
|
|
_appliedMigrations.Remove(version);
|
|
}
|
|
|
|
protected void CreateSchemaInfoTable()
|
|
{
|
|
EnsureHasConnection();
|
|
if (!TableExists("SchemaInfo"))
|
|
{
|
|
AddTable("SchemaInfo", new Column("Version", DbType.Int64, ColumnProperty.PrimaryKey));
|
|
}
|
|
}
|
|
|
|
public void AddColumn(string table, Column column)
|
|
{
|
|
AddColumn(table, column.Name, column.Type, column.Size, column.ColumnProperty, column.DefaultValue);
|
|
}
|
|
|
|
public void GenerateForeignKey(string primaryTable, string refTable)
|
|
{
|
|
GenerateForeignKey(primaryTable, refTable, ForeignKeyConstraint.NoAction);
|
|
}
|
|
|
|
public void GenerateForeignKey(string primaryTable, string refTable, ForeignKeyConstraint constraint)
|
|
{
|
|
GenerateForeignKey(primaryTable, refTable + "Id", refTable, "Id", constraint);
|
|
}
|
|
|
|
public IDbCommand GetCommand()
|
|
{
|
|
return BuildCommand(null);
|
|
}
|
|
|
|
public void ExecuteSchemaBuilder(SchemaBuilder builder)
|
|
{
|
|
foreach (ISchemaBuilderExpression expr in builder.Expressions)
|
|
expr.Create(this);
|
|
}
|
|
|
|
public virtual string QuoteValues(string values)
|
|
{
|
|
return QuoteValues(new string[] { values })[0];
|
|
}
|
|
|
|
public virtual string[] QuoteValues(string[] values)
|
|
{
|
|
return Array.ConvertAll<string, string>(values,
|
|
delegate(string val)
|
|
{
|
|
if (null == val)
|
|
return "null";
|
|
else
|
|
return String.Format("'{0}'", val.Replace("'", "''"));
|
|
});
|
|
}
|
|
|
|
public string JoinColumnsAndValues(string[] columns, string[] values)
|
|
{
|
|
string[] quotedValues = QuoteValues(values);
|
|
string[] namesAndValues = new string[columns.Length];
|
|
for (int i = 0; i < columns.Length; i++)
|
|
{
|
|
namesAndValues[i] = String.Format("{0}={1}", columns[i], quotedValues[i]);
|
|
}
|
|
|
|
return String.Join(", ", namesAndValues);
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
if (_connection != null && _connection.State == ConnectionState.Open)
|
|
{
|
|
_connection.Close();
|
|
}
|
|
}
|
|
}
|
|
}
|