public static bool EqualsColumns(ColumnInfo a, ColumnInfo b, bool checkName, bool checkDefault, DbDiffOptions opts, DbObjectPairing pairing)
{
if (checkName && !DbDiffTool.EqualNames(a.Name, b.Name, opts))
{
opts.DiffLogger.Trace("Column, different name: {0}; {1}", a, b);
return false;
}
//if (!DbDiffTool.EqualFullNames(a.Domain, b.Domain, opts))
//{
// opts.DiffLogger.Trace("Column {0}, {1}: different domain: {2}; {3}", a, b, a.Domain, b.Domain);
// return false;
//}
if (a.ComputedExpression != b.ComputedExpression)
{
opts.DiffLogger.Trace("Column {0}, {1}: different computed expression: {2}; {3}", a, b, a.ComputedExpression, b.ComputedExpression);
return false;
}
if (a.ComputedExpression != null)
{
return true;
}
if (checkDefault)
{
if (a.DefaultValue == null)
{
if (a.DefaultValue != b.DefaultValue)
{
opts.DiffLogger.Trace("Column {0}, {1}: different default values: {2}; {3}", a, b, a.DefaultValue, b.DefaultValue);
return false;
}
}
else
{
if (!a.DefaultValue.Equals(b.DefaultValue))
{
opts.DiffLogger.Trace("Column {0}, {1}: different default values: {2}; {3}", a, b, a.DefaultValue, b.DefaultValue);
return false;
}
}
if (a.DefaultConstraint != b.DefaultConstraint)
{
opts.DiffLogger.Trace("Column {0}, {1}: different default constraint names: {2}; {3}", a, b, a.DefaultConstraint, b.DefaultConstraint);
return false;
}
}
if (a.NotNull != b.NotNull)
{
opts.DiffLogger.Trace("Column {0}, {1}: different nullable: {2}; {3}", a, b, a.NotNull, b.NotNull);
return false;
}
if (a.AutoIncrement != b.AutoIncrement)
{
opts.DiffLogger.Trace("Column {0}, {1}: different autoincrement: {2}; {3}", a, b, a.AutoIncrement, b.AutoIncrement);
return false;
}
if (a.IsSparse != b.IsSparse)
{
opts.DiffLogger.Trace("Column {0}, {1}: different is_sparse: {2}; {3}", a, b, a.IsSparse, b.IsSparse);
return false;
}
if (!EqualTypes(a, b, opts))
{
return false;
}
//var btype = b.DataType;
//var atype = a.DataType;
//if (pairing != null && pairing.Target != null && pairing.Source.Dialect != null)
//{
// btype = pairing.Source.Dialect.MigrateDataType(b, btype, pairing.Source.Dialect.GetDefaultMigrationProfile(), null);
// btype = pairing.Source.Dialect.GenericTypeToSpecific(btype).ToGenericType();
// // normalize type
// atype = pairing.Source.Dialect.GenericTypeToSpecific(atype).ToGenericType();
//}
//if (!EqualTypes(atype, btype, opts))
//{
// opts.DiffLogger.Trace("Column {0}, {1}: different types: {2}; {3}", a, b, a.DataType, b.DataType);
// return false;
//}
//if (!opts.IgnoreColumnCollation && a.Collation != b.Collation)
//{
// opts.DiffLogger.Trace("Column {0}, {1}: different collations: {2}; {3}", a, b, a.Collation, b.Collation);
// return false;
//}
//if (!opts.IgnoreColumnCharacterSet && a.CharacterSet != b.CharacterSet)
//{
// opts.DiffLogger.Trace("Column {0}, {1}: different character sets: {2}; {3}", a, b, a.CharacterSet, b.CharacterSet);
// return false;
//}
return true;
}
public static bool EqualTables(TableInfo tsrc, TableInfo tdst, DbDiffOptions options, DbObjectPairing pairing, bool testNames)
{
if (options.IgnoreColumnOrder)
{
if (tsrc.Columns.Count != tdst.Columns.Count) return false;
foreach (var scol in tsrc.Columns)
{
var dcol = (from c in tdst.Columns where c.GroupId == scol.GroupId select c).FirstOrDefault();
if (dcol == null) return false;
using (var ctx = new DbDiffChangeLoggerContext(options, NopMessageLogger.Instance, DbDiffOptsLogger.DiffLogger))
{
if (!EqualsColumns(scol, dcol, true, true, options, pairing)) return false;
}
}
}
else
{
using (var ctx = new DbDiffChangeLoggerContext(options, NopMessageLogger.Instance, DbDiffOptsLogger.DiffLogger))
{
if (!tsrc.Columns.EqualSequence(tdst.Columns, (c1, c2) => EqualsColumns(c1, c2, true, true, options, pairing))) return false;
}
}
var csrc = new List<ConstraintInfo>(tsrc.Constraints);
var cdst = new List<ConstraintInfo>(tdst.Constraints);
csrc.Sort(CompareConstraints);
cdst.Sort(CompareConstraints);
if (!csrc.EqualSequence(cdst, (c1, c2) => EqualsConstraints(c1, c2, options, true, pairing))) return false;
if (testNames && !EqualFullNames(tsrc.FullName, tdst.FullName, options)) return false;
if (GetTableAlteredOptions(tsrc, tdst, options).Count > 0) return false;
return true;
}
public static bool EqualsConstraints(ConstraintInfo csrc, ConstraintInfo cdst, DbDiffOptions options, bool checkNames, DbObjectPairing pairing)
{
if (checkNames && !options.IgnoreConstraintNames)
{
if (!EqualNames(csrc.ConstraintName, cdst.ConstraintName, options))
{
return false;
//if (csrc is PrimaryKeyInfo && cdst is PrimaryKeyInfo) // && (pairing.Source.Dialect.DialectCaps.AnonymousPrimaryKey || pairing.Target.Dialect.DialectCaps.AnonymousPrimaryKey))
//{
// // do nothing
//}
//else
//{
// return false;
//}
}
}
if (csrc.GetType() != cdst.GetType()) return false;
if (csrc is ColumnsConstraintInfo)
{
TableInfo tsrc = pairing.Source.FindTable(csrc.OwnerTable.FullName);
TableInfo tdst = pairing.Target.FindTable(cdst.OwnerTable.FullName);
if (!EqualsColumnRefs(tsrc, tdst, ((ColumnsConstraintInfo)csrc).Columns, ((ColumnsConstraintInfo)cdst).Columns)) return false;
//if (!((ColumnsConstraint)csrc).Columns.EqualSequence(((ColumnsConstraint)cdst).Columns)) return false;
if (csrc is ForeignKeyInfo)
{
var fsrc = (ForeignKeyInfo)csrc;
var fdst = (ForeignKeyInfo)cdst;
if (!EqualFullNames(fsrc.RefTableFullName, fdst.RefTableFullName, options)) return false;
TableInfo psrc = pairing.Source.FindTable(fsrc.RefTableFullName);
TableInfo pdst = pairing.Target.FindTable(fdst.RefTableFullName);
if (!EqualsColumnRefs(psrc, pdst, fsrc.RefColumns, fdst.RefColumns)) return false;
if (fsrc.OnDeleteAction != fdst.OnDeleteAction) return false;
if (fsrc.OnUpdateAction != fdst.OnUpdateAction) return false;
}
//if (csrc is IIndex)
//{
// var isrc = (IndexConstraint)csrc;
// var idst = (IndexConstraint)cdst;
// if (isrc.IsUnique != idst.IsUnique) return false;
//}
}
//if (csrc is CheckConstraint)
//{
// if (((CheckConstraint)csrc).Expression != ((CheckConstraint)cdst).Expression) return false;
//}
return true;
}
//public static bool EqualTypes(DbTypeBase t1, DbTypeBase t2, DbDiffOptions opts)
//{
// if (!opts.IgnoreSpecificData && !t1.SpecificData.EqualsDictionary(t2.SpecificData, opts.IgnoreDataTypeProperties))
// {
// opts.DiffLogger.Trace("Types {0}, {1}: different specific data: {2}; {3}", t1, t2, t1.SpecificData.Format(), t2.SpecificData.Format());
// return false;
// }
// if (t1.Code != t2.Code)
// {
// opts.DiffLogger.Trace("Types {0}, {1}: different type code: {2}; {3}", t1, t2, t1.Code, t2.Code);
// return false;
// }
// if (!XmlTool.PropertiesEquals(t1, t2, opts.DiffLogger)) return false;
// return true;
//}
public static bool EqualTables(TableInfo tsrc, TableInfo tdst, DbDiffOptions options, DbObjectPairing pairing)
{
return EqualTables(tsrc, tdst, options, pairing, true);
}
public static DbObjectPairing CreateTablePairing(TableInfo oldTable, TableInfo newTable)
{
var src = new DatabaseInfo();
var dst = src.CloneDatabase();
src.AddObject(oldTable, true);
dst.AddObject(newTable, true);
DbObjectPairing pairing = new DbObjectPairing(src, dst);
return pairing;
}
public static void AlterSpecificObject(SpecificObjectInfo osrc, SpecificObjectInfo odst, AlterPlan plan, DbDiffOptions opts, DbObjectPairing pairing)
{
//bool altered = false;
if (osrc.CreateSql == odst.CreateSql)
{
plan.RenameSpecificObject(osrc, odst.FullName);
//altered = GenerateRename(osrc.ObjectName, odst.ObjectName,
// (old, sch) =>
// {
// var o2 = new SpecificObjectStructure(osrc);
// o2.ObjectName = old;
// proc.ChangeSpecificObjectSchema(o2, sch);
// },
// (old, nam) =>
// {
// var o2 = new SpecificObjectStructure(osrc);
// o2.ObjectName = old;
// proc.RenameSpecificObject(o2, nam);
// }, caps[osrc.ObjectType].ChangeSchema, caps[osrc.ObjectType].Rename, opts);
}
else
{
plan.ChangeSpecificObject(osrc, odst);
}
//if (!altered)
//{
// proc.DropSpecificObject(osrc);
// SpecificObjectStructure odst2 = new SpecificObjectStructure(odst);
// odst2.ObjectName = GenerateNewName(osrc.ObjectName, odst.ObjectName, opts);
// proc.CreateSpecificObject(odst);
//}
}
public static void AlterDatabase(AlterPlan plan, DbObjectPairing pairing, DbDiffOptions opts)
{
var src = pairing.Source;
var dst = pairing.Target;
//var caps = proc.AlterCaps;
//// domains
//foreach (IDomainStructure dsrc in src.Domains)
//{
// IDomainStructure ddst = pairing.FindPair(dsrc);
// if (ddst == null)
// {
// plan.DropDomain(dsrc);
// }
// else if (!DbDiffTool.EqualDomains(dsrc, ddst, opts, true))
// {
// if (DbDiffTool.EqualDomains(dsrc, ddst, opts, false))
// {
// plan.RenameDomain(dsrc, ddst.FullName);
// }
// else
// {
// plan.ChangeDomain(dsrc, ddst);
// }
// }
//}
//foreach (IDomainStructure ddst in dst.Domains)
//{
// if (!pairing.IsPaired(ddst)) plan.CreateDomain(ddst);
//}
// drop tables
foreach (TableInfo tsrc in new List<TableInfo>(src.Tables))
{
TableInfo tdst = pairing.FindPair(tsrc);
if (tdst == null)
{
plan.DropTable(tsrc);
}
}
// change tables
foreach (TableInfo tsrc in new List<TableInfo>(src.Tables))
{
TableInfo tdst = pairing.FindPair(tsrc);
if (tdst == null) continue;
if (!DbDiffTool.EqualTables(tsrc, tdst, opts, pairing))
{
DbDiffTool.AlterTable(plan, tsrc, tdst, opts, pairing);
}
//else
//{
// DbDiffTool.AlterFixedData(plan, tsrc, tdst, opts);
//}
}
// create tables
foreach (TableInfo tdst in dst.Tables)
{
if (!pairing.IsPaired(tdst))
{
//var script = DbDiffTool.AlterFixedData(null, tdst.FixedData, null, opts);
plan.CreateTable(tdst);
//if (script != null) plan.UpdateData(tdst.FullName, script);
}
}
// specific objects
foreach (var osrc in src.GetAllSpecificObjects())
{
//var repr = SpecificRepresentationAddonType.Instance.FindRepresentation(osrc.ObjectType);
//if (!repr.UseInSynchronization) continue;
var odst = pairing.FindPair(osrc);
if (odst == null)
{
plan.DropSpecificObject(osrc);
//proc.DropSpecificObject(osrc);
}
else if (!DbDiffTool.EqualsSpecificObjects(osrc, odst, opts))
{
DbDiffTool.AlterSpecificObject(osrc, odst, plan, opts, pairing);
}
}
foreach (var odst in dst.GetAllSpecificObjects())
{
//var repr = SpecificRepresentationAddonType.Instance.FindRepresentation(odst.ObjectType);
//if (!repr.UseInSynchronization) continue;
if (!pairing.IsPaired(odst))
{
plan.CreateSpecificObject(odst);
//proc.CreateSpecificObject(odst);
}
}
//foreach (ISchemaStructure ssrc in src.Schemata)
//{
// ISchemaStructure sdst = pairing.FindPair(ssrc);
// if (sdst == null)
// {
// plan.DropSchema(ssrc);
// }
// else if (ssrc.SchemaName != sdst.SchemaName)
// {
// plan.RenameSchema(ssrc, sdst.SchemaName);
// //if (caps.RenameSchema) proc.RenameSchema(ssrc, sdst.SchemaName);
// //else
// //{
// // proc.DropSchema(ssrc);
// // proc.CreateSchema(sdst);
// //}
// }
//}
//foreach (ISchemaStructure sdst in dst.Schemata)
//{
// if (!pairing.IsPaired(sdst)) plan.CreateSchema(sdst);
//}
//var alteredOptions = GetDatabaseAlteredOptions(src, dst, opts);
//if (alteredOptions.Count > 0) plan.ChangeDatabaseOptions(null, alteredOptions);
//if (opts.SchemaMode == DbDiffSchemaMode.Ignore)
//{
// plan.RunNameTransformation(new SetSchemaNameTransformation(null));
//}
}
public static void AlterTable(AlterPlan plan, TableInfo oldTable, TableInfo newTable, DbDiffOptions opts, DbObjectPairing pairing)
{
//plan.BeginFixedOrder();
if (oldTable == null) throw new ArgumentNullException("oldTable", "DBSH-00141 oldTable is null");
if (newTable == null) throw new ArgumentNullException("newTable", "DBSH-00142 newTable is null");
//bool processed;
//proc.AlterTable(oldTable, newTable, out processed);
//if (processed) return;
//InMemoryTableOperation dataOps = null;
//if (oldTable.FixedData != null) dataOps = new InMemoryTableOperation(oldTable.FixedData.Structure);
NameWithSchema newTableName = GenerateNewName(oldTable.FullName, newTable.FullName, opts);
bool permuteColumns = false;
bool insertColumns = false;
//bool renameColumns = false;
List<int> columnMap = new List<int>();
List<int> constraintMap = new List<int>();
foreach (var col in newTable.Columns)
{
columnMap.Add(oldTable.Columns.IndexOfIf(c => c.GroupId == col.GroupId));
}
foreach (var cnt in newTable.Constraints)
{
int cindex = oldTable.Constraints.IndexOfIf(c => c.GroupId == cnt.GroupId);
if (cindex < 0 && cnt is PrimaryKeyInfo)
{
// primary keys for one table are equal
cindex = oldTable.Constraints.IndexOfIf(c => c is PrimaryKeyInfo);
}
constraintMap.Add(cindex);
}
if (!opts.IgnoreColumnOrder)
{
// count alter requests
int lastcol = -1;
foreach (int col in columnMap)
{
if (col < 0) continue;
if (col < lastcol) permuteColumns = true;
lastcol = col;
}
bool wasins = false;
foreach (int col in columnMap)
{
if (col < 0) wasins = true;
if (col >= 0 && wasins) insertColumns = true;
}
}
int index;
// drop constraints
index = 0;
foreach (var cnt in oldTable.Constraints)
{
if (constraintMap.IndexOf(index) < 0) plan.DropConstraint(cnt);
index++;
}
// drop columns
index = 0;
foreach (var col in oldTable.Columns)
{
if (columnMap.IndexOf(index) < 0)
{
plan.DropColumn(col);
//if (dataOps != null) dataOps.DropColumn(col.ColumnName);
}
index++;
}
if (!DbDiffTool.EqualFullNames(oldTable.FullName, newTable.FullName, opts))
{
plan.RenameTable(oldTable, newTable.FullName);
}
// create columns
index = 0;
foreach (var col in newTable.Columns)
{
if (columnMap[index] < 0)
{
var newcol = col.CloneColumn();
plan.CreateColumn(oldTable, newcol);
//if (dataOps != null) dataOps.CreateColumn(newcol);
}
index++;
}
// change columns
index = 0;
foreach (var col in newTable.Columns)
{
if (columnMap[index] >= 0)
{
var src = oldTable.Columns[columnMap[index]];
if (!DbDiffTool.EqualsColumns(src, col, true, true, opts, pairing))
{
using (var ctx = new DbDiffChangeLoggerContext(opts, NopMessageLogger.Instance, DbDiffOptsLogger.DiffLogger))
{
if (DbDiffTool.EqualsColumns(src, col, false, true, opts, pairing))
{
plan.RenameColumn(src, col.Name);
}
else
{
plan.ChangeColumn(src, col);
}
//if (dataOps != null && src.ColumnName != col.ColumnName) dataOps.RenameColumn(src.ColumnName, col.ColumnName);
}
}
}
index++;
}
//// create fixed data script
//var script = AlterFixedData(oldTable.FixedData, newTable.FixedData, dataOps, opts);
//if (script != null) plan.UpdateData(oldTable.FullName, script);
// change constraints
index = 0;
foreach (var cnt in newTable.Constraints)
{
if (constraintMap[index] >= 0)
{
var src = oldTable.Constraints[constraintMap[index]];
if (DbDiffTool.EqualsConstraints(src, cnt, opts, false, pairing) && src.ConstraintName != cnt.ConstraintName)
{
//if (cnt is IPrimaryKey && (pairing.Source.Dialect.DialectCaps.AnonymousPrimaryKey || pairing.Target.Dialect.DialectCaps.AnonymousPrimaryKey))
//{
// // do nothing
//}
//else
//{
plan.RenameConstraint(src, cnt.ConstraintName);
//}
}
else
{
if (!DbDiffTool.EqualsConstraints(src, cnt, opts, true, pairing))
{
plan.ChangeConstraint(src, cnt);
}
}
}
index++;
}
// create constraints
index = 0;
foreach (var cnt in newTable.Constraints)
{
if (constraintMap[index] < 0)
{
plan.CreateConstraint(oldTable, cnt);
}
index++; ;
}
if (permuteColumns || insertColumns)
{
plan.ReorderColumns(oldTable, new List<string>((from c in newTable.Columns select c.Name)));
}
var alteredOptions = GetTableAlteredOptions(oldTable, newTable, opts);
if (alteredOptions.Count > 0) plan.ChangeTableOptions(oldTable, alteredOptions);
//plan.EndFixedOrder();
}
