public static int DuplicateCount(UniqueIndex uniqueIndex, Replacements rep)
{
var primaryKey = uniqueIndex.Table.Columns.Values.Where(a => a.PrimaryKey).Only();
if (primaryKey == null)
{
throw new InvalidOperationException("No primary key found");
}
;
var oldTableName = rep.Apply(Replacements.KeyTablesInverse, uniqueIndex.Table.Name.ToString());
var columnReplacement = rep.TryGetC(Replacements.KeyColumnsForTable(uniqueIndex.Table.Name.ToString()))?.Inverse() ?? new Dictionary <string, string>();
var oldColumns = uniqueIndex.Columns.ToString(c => (columnReplacement.TryGetC(c.Name) ?? c.Name).SqlEscape(), ", ");
var oldPrimaryKey = columnReplacement.TryGetC(primaryKey.Name) ?? primaryKey.Name;
return((int)Executor.ExecuteScalar(
$@"SELECT Count(*) FROM {oldTableName}
WHERE {oldPrimaryKey} NOT IN
(
SELECT MIN({oldPrimaryKey})
FROM {oldTableName}
{(string.IsNullOrWhiteSpace(uniqueIndex.Where) ? "" : "WHERE " + uniqueIndex.Where.Replace(columnReplacement))}
GROUP BY {oldColumns}
){(string.IsNullOrWhiteSpace(uniqueIndex.Where) ? "" : "AND " + uniqueIndex.Where.Replace(columnReplacement))}") !);
}
public static IDisposable RenameTable(Table table, Replacements replacements)
{
string fullName = replacements.TryGetC(Replacements.KeyTablesInverse)?.TryGetC(table.Name.ToString());
if (fullName == null)
{
return(null);
}
ObjectName realName = table.Name;
table.Name = ObjectName.Parse(fullName);
return(new Disposable(() => table.Name = realName));
}
public static IDisposable?UseOldTableName(Table table, Replacements replacements)
{
string?fullName = replacements.TryGetC(Replacements.KeyTablesInverse)?.TryGetC(table.Name.ToString());
if (fullName == null)
{
return(null);
}
ObjectName realName = table.Name;
table.Name = ObjectName.Parse(fullName, Schema.Current.Settings.IsPostgres);
return(new Disposable(() => table.Name = realName));
}
public static SqlPreCommand SynchronizeTablesScript(Replacements replacements)
{
Dictionary <string, ITable> model = Schema.Current.GetDatabaseTables().ToDictionaryEx(a => a.Name.ToString(), "schema tables");
HashSet <SchemaName> modelSchemas = Schema.Current.GetDatabaseTables().Select(a => a.Name.Schema).Where(a => !SqlBuilder.SystemSchemas.Contains(a.Name)).ToHashSet();
Dictionary <string, DiffTable> database = DefaultGetDatabaseDescription(Schema.Current.DatabaseNames());
HashSet <SchemaName> databaseSchemas = DefaultGetSchemas(Schema.Current.DatabaseNames());
if (SimplifyDiffTables != null)
{
SimplifyDiffTables(database);
}
replacements.AskForReplacements(database.Keys.ToHashSet(), model.Keys.ToHashSet(), Replacements.KeyTables);
database = replacements.ApplyReplacementsToOld(database, Replacements.KeyTables);
Dictionary <ITable, Dictionary <string, Index> > modelIndices = model.Values
.ToDictionary(t => t, t => t.GeneratAllIndexes().ToDictionaryEx(a => a.IndexName, "Indexes for {0}".FormatWith(t.Name)));
model.JoinDictionaryForeach(database, (tn, tab, diff) =>
{
var key = Replacements.KeyColumnsForTable(tn);
replacements.AskForReplacements(diff.Columns.Keys.ToHashSet(), tab.Columns.Keys.ToHashSet(), key);
diff.Columns = replacements.ApplyReplacementsToOld(diff.Columns, key);
diff.Indices = ApplyIndexAutoReplacements(diff, tab, modelIndices[tab]);
});
Func <ObjectName, ObjectName> ChangeName = (ObjectName objectName) =>
{
string name = replacements.Apply(Replacements.KeyTables, objectName.ToString());
return(model.TryGetC(name)?.Name ?? objectName);
};
Func <ObjectName, SqlPreCommand> DeleteAllForeignKey = tableName =>
{
var dropFks = (from t in database.Values
from c in t.Columns.Values
where c.ForeignKey != null && c.ForeignKey.TargetTable.Equals(tableName)
select SqlBuilder.AlterTableDropConstraint(t.Name, c.ForeignKey.Name)).Combine(Spacing.Simple);
if (dropFks == null)
{
return(null);
}
return(SqlPreCommand.Combine(Spacing.Simple, new SqlPreCommandSimple("---In order to remove the PK of " + tableName.Name), dropFks));
};
using (replacements.WithReplacedDatabaseName())
{
SqlPreCommand createSchemas = Synchronizer.SynchronizeScriptReplacing(replacements, "Schemas",
modelSchemas.ToDictionary(a => a.ToString()),
databaseSchemas.ToDictionary(a => a.ToString()),
(_, newSN) => SqlBuilder.CreateSchema(newSN),
null,
(_, newSN, oldSN) => newSN.Equals(oldSN) ? null : SqlBuilder.CreateSchema(newSN),
Spacing.Double);
//use database without replacements to just remove indexes
SqlPreCommand dropStatistics =
Synchronizer.SynchronizeScript(model, database,
null,
(tn, dif) => SqlBuilder.DropStatistics(tn, dif.Stats),
(tn, tab, dif) =>
{
var removedColums = dif.Columns.Keys.Except(tab.Columns.Keys).ToHashSet();
return(SqlBuilder.DropStatistics(tn, dif.Stats.Where(a => a.Columns.Any(removedColums.Contains)).ToList()));
},
Spacing.Double);
SqlPreCommand dropIndices =
Synchronizer.SynchronizeScript(model, database,
null,
(tn, dif) => dif.Indices.Values.Where(ix => !ix.IsPrimary).Select(ix => SqlBuilder.DropIndex(dif.Name, ix)).Combine(Spacing.Simple),
(tn, tab, dif) =>
{
Dictionary <string, Index> modelIxs = modelIndices[tab];
var removedColums = dif.Columns.Keys.Except(tab.Columns.Keys).ToHashSet();
var changes = Synchronizer.SynchronizeScript(modelIxs, dif.Indices,
null,
(i, dix) => dix.Columns.Any(removedColums.Contains) || dix.IsControlledIndex ? SqlBuilder.DropIndex(dif.Name, dix) : null,
(i, mix, dix) => !dix.IndexEquals(dif, mix) ? SqlPreCommand.Combine(Spacing.Double, dix.IsPrimary ? DeleteAllForeignKey(dif.Name) : null, SqlBuilder.DropIndex(dif.Name, dix)) : null,
Spacing.Simple);
return(changes);
},
Spacing.Double);
SqlPreCommand dropForeignKeys = Synchronizer.SynchronizeScript(
model,
database,
null,
(tn, dif) => dif.Columns.Values.Select(c => c.ForeignKey != null ? SqlBuilder.AlterTableDropConstraint(dif.Name, c.ForeignKey.Name) : null)
.Concat(dif.MultiForeignKeys.Select(fk => SqlBuilder.AlterTableDropConstraint(dif.Name, fk.Name))).Combine(Spacing.Simple),
(tn, tab, dif) => SqlPreCommand.Combine(Spacing.Simple,
Synchronizer.SynchronizeScript(
tab.Columns,
dif.Columns,
null,
(cn, colDb) => colDb.ForeignKey != null ? SqlBuilder.AlterTableDropConstraint(dif.Name, colDb.ForeignKey.Name) : null,
(cn, colModel, colDb) => colDb.ForeignKey == null ? null :
colModel.ReferenceTable == null || colModel.AvoidForeignKey || !colModel.ReferenceTable.Name.Equals(ChangeName(colDb.ForeignKey.TargetTable)) ?
SqlBuilder.AlterTableDropConstraint(dif.Name, colDb.ForeignKey.Name) :
null, Spacing.Simple),
dif.MultiForeignKeys.Select(fk => SqlBuilder.AlterTableDropConstraint(dif.Name, fk.Name)).Combine(Spacing.Simple)),
Spacing.Double);
SqlPreCommand tables =
Synchronizer.SynchronizeScript(
model,
database,
(tn, tab) => SqlBuilder.CreateTableSql(tab),
(tn, dif) => SqlBuilder.DropTable(dif.Name),
(tn, tab, dif) =>
SqlPreCommand.Combine(Spacing.Simple,
!object.Equals(dif.Name, tab.Name) ? SqlBuilder.RenameOrMove(dif, tab) : null,
Synchronizer.SynchronizeScript(
tab.Columns,
dif.Columns,
(cn, tabCol) => SqlPreCommandSimple.Combine(Spacing.Simple,
tabCol.PrimaryKey && dif.PrimaryKeyName != null ? SqlBuilder.DropPrimaryKeyConstraint(tab.Name) : null,
AlterTableAddColumnDefault(tab, tabCol, replacements)),
(cn, difCol) => SqlPreCommandSimple.Combine(Spacing.Simple,
difCol.Default != null ? SqlBuilder.DropDefaultConstraint(tab.Name, difCol.Name) : null,
SqlBuilder.AlterTableDropColumn(tab, cn)),
(cn, tabCol, difCol) => SqlPreCommand.Combine(Spacing.Simple,
difCol.Name == tabCol.Name ? null : SqlBuilder.RenameColumn(tab, difCol.Name, tabCol.Name),
difCol.ColumnEquals(tabCol, ignorePrimaryKey: true) ? null : SqlPreCommand.Combine(Spacing.Simple,
tabCol.PrimaryKey && !difCol.PrimaryKey && dif.PrimaryKeyName != null ? SqlBuilder.DropPrimaryKeyConstraint(tab.Name) : null,
SqlBuilder.AlterTableAlterColumn(tab, tabCol),
tabCol.SqlDbType == SqlDbType.NVarChar && difCol.SqlDbType == SqlDbType.NChar ? SqlBuilder.UpdateTrim(tab, tabCol) : null),
difCol.DefaultEquals(tabCol) ? null : SqlPreCommand.Combine(Spacing.Simple,
difCol.Default != null ? SqlBuilder.DropDefaultConstraint(tab.Name, tabCol.Name) : null,
tabCol.Default != null ? SqlBuilder.AddDefaultConstraint(tab.Name, tabCol.Name, tabCol.Default) : null),
UpdateByFkChange(tn, difCol, tabCol, ChangeName)),
Spacing.Simple)),
Spacing.Double);
if (tables != null)
{
tables.GoAfter = true;
}
var tableReplacements = replacements.TryGetC(Replacements.KeyTables);
if (tableReplacements != null)
{
replacements[Replacements.KeyTablesInverse] = tableReplacements.Inverse();
}
SqlPreCommand syncEnums;
try
{
syncEnums = SynchronizeEnumsScript(replacements);
}
catch (Exception e)
{
syncEnums = new SqlPreCommandSimple("-- Exception synchronizing enums: " + e.Message);
}
SqlPreCommand addForeingKeys = Synchronizer.SynchronizeScript(
model,
database,
(tn, tab) => SqlBuilder.AlterTableForeignKeys(tab),
null,
(tn, tab, dif) => Synchronizer.SynchronizeScript(
tab.Columns,
dif.Columns,
(cn, colModel) => colModel.ReferenceTable == null || colModel.AvoidForeignKey ? null :
SqlBuilder.AlterTableAddConstraintForeignKey(tab, colModel.Name, colModel.ReferenceTable),
null,
(cn, colModel, coldb) =>
{
if (colModel.ReferenceTable == null || colModel.AvoidForeignKey)
{
return(null);
}
if (coldb.ForeignKey == null || !colModel.ReferenceTable.Name.Equals(ChangeName(coldb.ForeignKey.TargetTable)))
{
return(SqlBuilder.AlterTableAddConstraintForeignKey(tab, colModel.Name, colModel.ReferenceTable));
}
var name = SqlBuilder.ForeignKeyName(tab.Name.Name, colModel.Name);
return(SqlPreCommand.Combine(Spacing.Simple,
name != coldb.ForeignKey.Name.Name ? SqlBuilder.RenameForeignKey(coldb.ForeignKey.Name, name) : null,
(coldb.ForeignKey.IsDisabled || coldb.ForeignKey.IsNotTrusted) && !replacements.SchemaOnly ? SqlBuilder.EnableForeignKey(tab.Name, name) : null));
},
Spacing.Simple),
Spacing.Double);
bool?createMissingFreeIndexes = null;
SqlPreCommand addIndices =
Synchronizer.SynchronizeScript(model, database,
(tn, tab) => modelIndices[tab].Values.Where(a => !(a is PrimaryClusteredIndex)).Select(SqlBuilder.CreateIndex).Combine(Spacing.Simple),
null,
(tn, tab, dif) =>
{
var columnReplacements = replacements.TryGetC(Replacements.KeyColumnsForTable(tn));
Func <IColumn, bool> isNew = c => !dif.Columns.ContainsKey(columnReplacements?.TryGetC(c.Name) ?? c.Name);
Dictionary <string, Index> modelIxs = modelIndices[tab];
var controlledIndexes = Synchronizer.SynchronizeScript(modelIxs, dif.Indices,
(i, mix) => mix is UniqueIndex || mix.Columns.Any(isNew) || SafeConsole.Ask(ref createMissingFreeIndexes, "Create missing non-unique index {0} in {1}?".FormatWith(mix.IndexName, tab.Name)) ? SqlBuilder.CreateIndex(mix) : null,
null,
(i, mix, dix) => !dix.IndexEquals(dif, mix) ? SqlBuilder.CreateIndex(mix) :
mix.IndexName != dix.IndexName ? SqlBuilder.RenameIndex(tab, dix.IndexName, mix.IndexName) : null,
Spacing.Simple);
return(SqlPreCommand.Combine(Spacing.Simple, controlledIndexes));
}, Spacing.Double);
SqlPreCommand dropSchemas = Synchronizer.SynchronizeScriptReplacing(replacements, "Schemas",
modelSchemas.ToDictionary(a => a.ToString()),
databaseSchemas.ToDictionary(a => a.ToString()),
null,
(_, oldSN) => DropSchema(oldSN) ? SqlBuilder.DropSchema(oldSN) : null,
(_, newSN, oldSN) => newSN.Equals(oldSN) ? null : SqlBuilder.DropSchema(oldSN),
Spacing.Double);
return(SqlPreCommand.Combine(Spacing.Triple, createSchemas, dropStatistics, dropIndices, dropForeignKeys, tables, syncEnums, addForeingKeys, addIndices, dropSchemas));
}
}
public static SqlPreCommand SynchronizeTablesScript(Replacements replacements)
{
Schema s = Schema.Current;
Dictionary <string, ITable> model = s.GetDatabaseTables().Where(t => !s.IsExternalDatabase(t.Name.Schema.Database)).ToDictionaryEx(a => a.Name.ToString(), "schema tables");
HashSet <SchemaName> modelSchemas = model.Values.Select(a => a.Name.Schema).Where(a => !SqlBuilder.SystemSchemas.Contains(a.Name)).ToHashSet();
Dictionary <string, DiffTable> database = DefaultGetDatabaseDescription(s.DatabaseNames());
HashSet <SchemaName> databaseSchemas = DefaultGetSchemas(s.DatabaseNames());
SimplifyDiffTables?.Invoke(database);
replacements.AskForReplacements(database.Keys.ToHashSet(), model.Keys.ToHashSet(), Replacements.KeyTables);
database = replacements.ApplyReplacementsToOld(database, Replacements.KeyTables);
Dictionary <ITable, Dictionary <string, Index> > modelIndices = model.Values
.ToDictionary(t => t, t => t.GeneratAllIndexes().ToDictionaryEx(a => a.IndexName, "Indexes for {0}".FormatWith(t.Name)));
//To --> From
Dictionary <ObjectName, ObjectName> copyDataFrom = new Dictionary <ObjectName, ObjectName>();
//A -> A_temp
Dictionary <ObjectName, ObjectName> preRenames = new Dictionary <ObjectName, ObjectName>();
model.JoinDictionaryForeach(database, (tn, tab, diff) =>
{
var key = Replacements.KeyColumnsForTable(tn);
replacements.AskForReplacements(diff.Columns.Keys.ToHashSet(), tab.Columns.Keys.ToHashSet(), key);
diff.Columns = replacements.ApplyReplacementsToOld(diff.Columns, key);
diff.Indices = ApplyIndexAutoReplacements(diff, tab, modelIndices[tab]);
var diffPk = diff.Columns.TryGetC(tab.PrimaryKey.Name);
if (diffPk != null && tab.PrimaryKey.Identity != diffPk.Identity)
{
if (tab.Name.Equals(diff.Name))
{
var tempName = new ObjectName(diff.Name.Schema, diff.Name.Name + "_old");
preRenames.Add(diff.Name, tempName);
copyDataFrom.Add(tab.Name, tempName);
if (replacements.Interactive)
{
SafeConsole.WriteLineColor(ConsoleColor.Yellow, $@"Column {diffPk.Name} in {diff.Name} is now Identity={tab.PrimaryKey.Identity}.");
Console.WriteLine($@"Changing a Primary Key is not supported by SQL Server so the script will...:
1. Rename {diff.Name} table to {tempName}
2. Create a new table {diff.Name}
3. Copy data from {tempName} to {tab.Name}.
4. Drop {tempName}
");
}
}
else
{
copyDataFrom.Add(tab.Name, diff.Name);
if (replacements.Interactive)
{
SafeConsole.WriteLineColor(ConsoleColor.Yellow, $@"Column {diffPk.Name} in {diff.Name} is now Identity={tab.PrimaryKey.Identity}.");
Console.WriteLine($@"Changing a Primary Key is not supported by SQL Server so the script will...:
1. Create a new table {tab.Name}
2. Copy data from {diff.Name} to {tab.Name}.
3. Drop {diff.Name}
");
}
}
}
});
var columnsByFKTarget = database.Values.SelectMany(a => a.Columns.Values).Where(a => a.ForeignKey != null).GroupToDictionary(a => a.ForeignKey.TargetTable);
foreach (var pr in preRenames)
{
var diff = database[pr.Key.ToString()];
diff.Name = pr.Value;
foreach (var col in columnsByFKTarget.TryGetC(pr.Key).EmptyIfNull())
{
col.ForeignKey.TargetTable = pr.Value;
}
database.Add(pr.Value.ToString(), diff);
database.Remove(pr.Key.ToString());
}
Func <ObjectName, ObjectName> ChangeName = (ObjectName objectName) =>
{
string name = replacements.Apply(Replacements.KeyTables, objectName.ToString());
return(model.TryGetC(name)?.Name ?? objectName);
};
Func <ObjectName, SqlPreCommand> DeleteAllForeignKey = tableName =>
{
var dropFks = (from t in database.Values
from c in t.Columns.Values
where c.ForeignKey != null && c.ForeignKey.TargetTable.Equals(tableName)
select SqlBuilder.AlterTableDropConstraint(t.Name, c.ForeignKey.Name)).Combine(Spacing.Simple);
if (dropFks == null)
{
return(null);
}
return(SqlPreCommand.Combine(Spacing.Simple, new SqlPreCommandSimple("---In order to remove the PK of " + tableName.Name), dropFks));
};
using (replacements.WithReplacedDatabaseName())
{
SqlPreCommand preRenameTables = preRenames.Select(a => SqlBuilder.RenameTable(a.Key, a.Value.Name)).Combine(Spacing.Double);
if (preRenameTables != null)
{
preRenameTables.GoAfter = true;
}
SqlPreCommand createSchemas = Synchronizer.SynchronizeScriptReplacing(replacements, "Schemas",
modelSchemas.ToDictionary(a => a.ToString()),
databaseSchemas.ToDictionary(a => a.ToString()),
(_, newSN) => SqlBuilder.CreateSchema(newSN),
null,
(_, newSN, oldSN) => newSN.Equals(oldSN) ? null : SqlBuilder.CreateSchema(newSN),
Spacing.Double);
//use database without replacements to just remove indexes
SqlPreCommand dropStatistics =
Synchronizer.SynchronizeScript(model, database,
null,
(tn, dif) => SqlBuilder.DropStatistics(tn, dif.Stats),
(tn, tab, dif) =>
{
var removedColums = dif.Columns.Keys.Except(tab.Columns.Keys).ToHashSet();
return(SqlBuilder.DropStatistics(tn, dif.Stats.Where(a => a.Columns.Any(removedColums.Contains)).ToList()));
},
Spacing.Double);
SqlPreCommand dropIndices =
Synchronizer.SynchronizeScript(model, database,
null,
(tn, dif) => dif.Indices.Values.Where(ix => !ix.IsPrimary).Select(ix => SqlBuilder.DropIndex(dif.Name, ix)).Combine(Spacing.Simple),
(tn, tab, dif) =>
{
Dictionary <string, Index> modelIxs = modelIndices[tab];
var removedColums = dif.Columns.Keys.Except(tab.Columns.Keys).ToHashSet();
var changes = Synchronizer.SynchronizeScript(modelIxs, dif.Indices,
null,
(i, dix) => dix.Columns.Any(removedColums.Contains) || dix.IsControlledIndex ? SqlBuilder.DropIndex(dif.Name, dix) : null,
(i, mix, dix) => !dix.IndexEquals(dif, mix) ? SqlPreCommand.Combine(Spacing.Double, dix.IsPrimary ? DeleteAllForeignKey(dif.Name) : null, SqlBuilder.DropIndex(dif.Name, dix)) : null,
Spacing.Simple);
return(changes);
},
Spacing.Double);
SqlPreCommand dropForeignKeys = Synchronizer.SynchronizeScript(
model,
database,
null,
(tn, dif) => dif.Columns.Values.Select(c => c.ForeignKey != null ? SqlBuilder.AlterTableDropConstraint(dif.Name, c.ForeignKey.Name) : null)
.Concat(dif.MultiForeignKeys.Select(fk => SqlBuilder.AlterTableDropConstraint(dif.Name, fk.Name))).Combine(Spacing.Simple),
(tn, tab, dif) => SqlPreCommand.Combine(Spacing.Simple,
Synchronizer.SynchronizeScript(
tab.Columns,
dif.Columns,
null,
(cn, colDb) => colDb.ForeignKey != null ? SqlBuilder.AlterTableDropConstraint(dif.Name, colDb.ForeignKey.Name) : null,
(cn, colModel, colDb) => colDb.ForeignKey == null ? null :
colModel.ReferenceTable == null || colModel.AvoidForeignKey || !colModel.ReferenceTable.Name.Equals(ChangeName(colDb.ForeignKey.TargetTable)) ?
SqlBuilder.AlterTableDropConstraint(dif.Name, colDb.ForeignKey.Name) :
null, Spacing.Simple),
dif.MultiForeignKeys.Select(fk => SqlBuilder.AlterTableDropConstraint(dif.Name, fk.Name)).Combine(Spacing.Simple)),
Spacing.Double);
SqlPreCommand preRenamePks = preRenames.Select(a => SqlBuilder.DropPrimaryKeyConstraint(a.Value)).Combine(Spacing.Double);
SqlPreCommand tables =
Synchronizer.SynchronizeScript(
model,
database,
(tn, tab) => SqlPreCommand.Combine(Spacing.Double,
SqlBuilder.CreateTableSql(tab),
copyDataFrom.ContainsKey(tab.Name) ? CopyData(tab, database.GetOrThrow(copyDataFrom.GetOrThrow(tab.Name).ToString()), replacements).Do(a => a.GoBefore = true) : null
),
(tn, dif) => SqlBuilder.DropTable(dif.Name),
(tn, tab, dif) =>
SqlPreCommand.Combine(Spacing.Simple,
!object.Equals(dif.Name, tab.Name) ? SqlBuilder.RenameOrMove(dif, tab) : null,
Synchronizer.SynchronizeScript(
tab.Columns,
dif.Columns,
(cn, tabCol) => SqlPreCommand.Combine(Spacing.Simple,
tabCol.PrimaryKey && dif.PrimaryKeyName != null ? SqlBuilder.DropPrimaryKeyConstraint(tab.Name) : null,
AlterTableAddColumnDefault(tab, tabCol, replacements)),
(cn, difCol) => SqlPreCommand.Combine(Spacing.Simple,
difCol.Default != null ? SqlBuilder.DropDefaultConstraint(tab.Name, difCol.Name) : null,
SqlBuilder.AlterTableDropColumn(tab, cn)),
(cn, tabCol, difCol) => SqlPreCommand.Combine(Spacing.Simple,
difCol.Name == tabCol.Name ? null : SqlBuilder.RenameColumn(tab, difCol.Name, tabCol.Name),
difCol.ColumnEquals(tabCol, ignorePrimaryKey: true) ? null : SqlPreCommand.Combine(Spacing.Simple,
tabCol.PrimaryKey && !difCol.PrimaryKey && dif.PrimaryKeyName != null ? SqlBuilder.DropPrimaryKeyConstraint(tab.Name) : null,
SqlBuilder.AlterTableAlterColumn(tab, tabCol),
tabCol.SqlDbType == SqlDbType.NVarChar && difCol.SqlDbType == SqlDbType.NChar ? SqlBuilder.UpdateTrim(tab, tabCol) : null),
difCol.DefaultEquals(tabCol) ? null : SqlPreCommand.Combine(Spacing.Simple,
difCol.Default != null ? SqlBuilder.DropDefaultConstraint(tab.Name, tabCol.Name) : null,
tabCol.Default != null ? SqlBuilder.AddDefaultConstraint(tab.Name, tabCol.Name, tabCol.Default, tabCol.SqlDbType) : null),
UpdateByFkChange(tn, difCol, tabCol, ChangeName, copyDataFrom)),
Spacing.Simple)),
Spacing.Double);
if (tables != null)
{
tables.GoAfter = true;
}
var tableReplacements = replacements.TryGetC(Replacements.KeyTables);
if (tableReplacements != null)
{
replacements[Replacements.KeyTablesInverse] = tableReplacements.Inverse();
}
SqlPreCommand syncEnums;
try
{
syncEnums = SynchronizeEnumsScript(replacements);
}
catch (Exception e)
{
syncEnums = new SqlPreCommandSimple("-- Exception synchronizing enums: " + e.Message);
}
SqlPreCommand addForeingKeys = Synchronizer.SynchronizeScript(
model,
database,
(tn, tab) => SqlBuilder.AlterTableForeignKeys(tab),
null,
(tn, tab, dif) => Synchronizer.SynchronizeScript(
tab.Columns,
dif.Columns,
(cn, colModel) => colModel.ReferenceTable == null || colModel.AvoidForeignKey ? null :
SqlBuilder.AlterTableAddConstraintForeignKey(tab, colModel.Name, colModel.ReferenceTable),
null,
(cn, colModel, coldb) =>
{
if (colModel.ReferenceTable == null || colModel.AvoidForeignKey)
{
return(null);
}
if (coldb.ForeignKey == null || !colModel.ReferenceTable.Name.Equals(ChangeName(coldb.ForeignKey.TargetTable)))
{
return(SqlBuilder.AlterTableAddConstraintForeignKey(tab, colModel.Name, colModel.ReferenceTable));
}
var name = SqlBuilder.ForeignKeyName(tab.Name.Name, colModel.Name);
return(SqlPreCommand.Combine(Spacing.Simple,
name != coldb.ForeignKey.Name.Name ? SqlBuilder.RenameForeignKey(coldb.ForeignKey.Name, name) : null,
(coldb.ForeignKey.IsDisabled || coldb.ForeignKey.IsNotTrusted) && !replacements.SchemaOnly ? SqlBuilder.EnableForeignKey(tab.Name, name) : null));
},
Spacing.Simple),
Spacing.Double);
bool?createMissingFreeIndexes = null;
SqlPreCommand addIndices =
Synchronizer.SynchronizeScript(model, database,
(tn, tab) => modelIndices[tab].Values.Where(a => !(a is PrimaryClusteredIndex)).Select(SqlBuilder.CreateIndex).Combine(Spacing.Simple),
null,
(tn, tab, dif) =>
{
var columnReplacements = replacements.TryGetC(Replacements.KeyColumnsForTable(tn));
Func <IColumn, bool> isNew = c => !dif.Columns.ContainsKey(columnReplacements?.TryGetC(c.Name) ?? c.Name);
Dictionary <string, Index> modelIxs = modelIndices[tab];
var controlledIndexes = Synchronizer.SynchronizeScript(modelIxs, dif.Indices,
(i, mix) => mix is UniqueIndex || mix.Columns.Any(isNew) || SafeConsole.Ask(ref createMissingFreeIndexes, "Create missing non-unique index {0} in {1}?".FormatWith(mix.IndexName, tab.Name)) ? SqlBuilder.CreateIndex(mix) : null,
null,
(i, mix, dix) => !dix.IndexEquals(dif, mix) ? SqlBuilder.CreateIndex(mix) :
mix.IndexName != dix.IndexName ? SqlBuilder.RenameIndex(tab, dix.IndexName, mix.IndexName) : null,
Spacing.Simple);
return(SqlPreCommand.Combine(Spacing.Simple, controlledIndexes));
}, Spacing.Double);
SqlPreCommand dropSchemas = Synchronizer.SynchronizeScriptReplacing(replacements, "Schemas",
modelSchemas.ToDictionary(a => a.ToString()),
databaseSchemas.ToDictionary(a => a.ToString()),
null,
(_, oldSN) => DropSchema(oldSN) ? SqlBuilder.DropSchema(oldSN) : null,
(_, newSN, oldSN) => newSN.Equals(oldSN) ? null : SqlBuilder.DropSchema(oldSN),
Spacing.Double);
return(SqlPreCommand.Combine(Spacing.Triple, preRenameTables, createSchemas, dropStatistics, dropIndices, dropForeignKeys, preRenamePks, tables, syncEnums, addForeingKeys, addIndices, dropSchemas));
}
}