protected override void LoadConstraints(Database schema, SchemaName schemaName, IDbConnection conn, NameFormat nameFormat, Names names)
{
//TableSorter.Sort(tables, constraints); //sort tables - parents first
var constraints = ReadConstraints(conn, schemaName.DbName);
var allKeys2 = ReadForeignConstraints(conn, schemaName.DbName);
var foreignKeys = allKeys2.Where(k => k.ConstraintType == "FOREIGN KEY").ToList();
var primaryKeys = allKeys2.Where(k => k.ConstraintType == "PRIMARY KEY").ToList();
foreach (DataConstraint keyColRow in constraints)
{
//find my table:
string constraintFullDbName = GetFullDbName(keyColRow.TableName, keyColRow.TableSchema);
DbLinq.Schema.Dbml.Table table = schema.Tables.FirstOrDefault(t => constraintFullDbName == t.Name);
if (table == null)
{
WriteErrorLine("ERROR L138: Table '" + keyColRow.TableName + "' not found for column " + keyColRow.ColumnName);
continue;
}
//todo: must understand better how PKEYs are encoded.
//In Sasha's DB, they don't end with "_pkey", you need to rely on ReadForeignConstraints().
//In Northwind, they do end with "_pkey".
bool isPrimaryKey = keyColRow.ConstraintName.EndsWith("_pkey") ||
primaryKeys.Count(k => k.ConstraintName == keyColRow.ConstraintName) == 1;
if (isPrimaryKey)
{
//A) add primary key
DbLinq.Schema.Dbml.Column primaryKeyCol = table.Type.Columns.First(c => c.Name == keyColRow.ColumnName);
primaryKeyCol.IsPrimaryKey = true;
}
else
{
DataForeignConstraint dataForeignConstraint = foreignKeys.FirstOrDefault(f => f.ConstraintName == keyColRow.ConstraintName);
if (dataForeignConstraint == null)
{
string msg = "Missing data from 'constraint_column_usage' for foreign key " + keyColRow.ConstraintName;
WriteErrorLine(msg);
//throw new ApplicationException(msg);
continue; //as per Andrus, do not throw. //putting together an Adnrus_DB test case.
}
LoadForeignKey(schema, table, keyColRow.ColumnName, keyColRow.TableName, keyColRow.TableSchema,
dataForeignConstraint.ColumnName, dataForeignConstraint.ReferencedTableName,
dataForeignConstraint.ReferencedTableSchema,
keyColRow.ConstraintName, nameFormat, names);
}
}
}
protected override void LoadConstraints(Database schema, SchemaName schemaName, IDbConnection conn, NameFormat nameFormat, Names names)
{
var constraints = ReadConstraints(conn, schemaName.DbName);
foreach (DataConstraint constraint in constraints)
{
//find my table:
string constraintFullDbName = GetFullDbName(constraint.TableName, constraint.TableSchema);
DbLinq.Schema.Dbml.Table table = schema.Tables.FirstOrDefault(t => constraintFullDbName == t.Name);
if (table == null)
{
WriteErrorLine("ERROR L100: Table '" + constraint.TableName + "' not found for column " + constraint.ColumnName);
continue;
}
//if (table.Name.StartsWith("E"))
// Logger.Write("---Dbg");
if (constraint.ConstraintType == "P")
{
//A) add primary key
DbLinq.Schema.Dbml.Column pkColumn = table.Type.Columns.Where(c => c.Name == constraint.ColumnName).First();
pkColumn.IsPrimaryKey = true;
}
else if (constraint.ConstraintType == "R")
{
//if not PRIMARY, it's a foreign key. (constraint_type=="R")
//both parent and child table get an [Association]
DataConstraint referencedConstraint = constraints.FirstOrDefault(c => c.ConstraintName == constraint.ReverseConstraintName);
if (constraint.ReverseConstraintName == null || referencedConstraint == null)
{
WriteErrorLine("ERROR L127: given R_contraint_name='" + constraint.ReverseConstraintName + "', unable to find parent constraint");
continue;
}
LoadForeignKey(schema, table, constraint.ColumnName, constraint.TableName, constraint.TableSchema,
referencedConstraint.ColumnName, referencedConstraint.TableName,
referencedConstraint.TableSchema,
constraint.ConstraintName, nameFormat, names);
}
// custom type, this is a trigger
else if (constraint.ConstraintType == "T" && constraint.ColumnName != null)
{
var column = table.Type.Columns.Where(c => c.Name == constraint.ColumnName).First();
column.Expression = constraint.Expression;
column.IsDbGenerated = true;
}
}
//GuessSequencePopulatedFields(schema);
}
protected override void LoadConstraints(Database schema, SchemaName schemaName, IDbConnection conn, NameFormat nameFormat, Names names)
{
//TableSorter.Sort(tables, constraints); //sort tables - parents first
var foreignKeys = ReadConstraints(conn, schemaName.DbName);
foreach (DataConstraint keyColRow in foreignKeys)
{
//find my table:
string constraintFullDbName = GetFullDbName(keyColRow.TableName, keyColRow.TableSchema);
DbLinq.Schema.Dbml.Table table = schema.Tables.FirstOrDefault(t => constraintFullDbName == t.Name);
if (table == null)
{
WriteErrorLine("ERROR L138: Table '"
+ keyColRow.TableName
+ "' not found for column "
+ keyColRow.ColumnName);
continue;
}
if (keyColRow.ConstraintType.Equals("P")) //'PRIMARY KEY'
{
//foreach (string pk_name in keyColRow.column_name_primaries)
//{
DbLinq.Schema.Dbml.Column primaryKeyCol = table.Type.Columns.First(c => c.Name == keyColRow.ColumnName);
primaryKeyCol.IsPrimaryKey = true;
//}
continue;
}
if (keyColRow.ConstraintType.Equals("R")) //'FOREIGN KEY'
{
// This is very bad...
if (!names.ColumnsNames[keyColRow.ReferencedTableName].ContainsKey(keyColRow.ReferencedColumnName))
{
continue;
}
LoadForeignKey(schema, table, keyColRow.ColumnName, keyColRow.TableName,
keyColRow.TableSchema,
keyColRow.ReferencedColumnName, keyColRow.ReferencedTableName,
keyColRow.ReferencedTableSchema,
keyColRow.ConstraintName, nameFormat, names);
}
}
}
protected override void LoadConstraints(Database schema, SchemaName schemaName, IDbConnection conn, NameFormat nameFormat, Names names)
{
foreach (var table in schema.Table)
{
table.Name = table.Name.Split('.').Last();
}
var constraints = ReadConstraints(conn, schemaName.DbName);
//sort tables - parents first (this is moving to SchemaPostprocess)
//TableSorter.Sort(tables, constraints);
// Deal with non existing foreign key database
if (constraints != null)
{
foreach (DataConstraint keyColRow in constraints)
{
//find my table:
string tableFullDbName = keyColRow.TableName;// GetFullDbName(keyColRow.TableName, keyColRow.TableSchema);
DbLinq.Schema.Dbml.Table table = schema.Tables.FirstOrDefault(t => tableFullDbName == t.Name);
if (table == null)
{
WriteErrorLine("ERROR L46: Table '" + keyColRow.TableName + "' not found for column " + keyColRow.ColumnName);
continue;
}
bool isForeignKey = keyColRow.ConstraintName != "PRIMARY" &&
keyColRow.ReferencedTableName != null;
if (isForeignKey)
{
LoadForeignKey(schema, table, keyColRow.ColumnName, keyColRow.TableName, keyColRow.TableSchema,
keyColRow.ReferencedColumnName, keyColRow.ReferencedTableName,
keyColRow.ReferencedTableSchema,
keyColRow.ConstraintName, nameFormat, names);
}
else
{
//A) add primary key
DbLinq.Schema.Dbml.Column primaryKeyCol = table.Type.Columns.First(c => c.Name == keyColRow.ColumnName);
primaryKeyCol.IsPrimaryKey = true;
}
}
}
}
/// <summary>
/// Writes property setter, for FK properties
/// </summary>
/// <param name="writer"></param>
/// <param name="property"></param>
/// <param name="relatedAssociations"></param>
/// <param name="context"></param>
private void WriteClassPropertyAccessorSet(CodeWriter writer, Column property, IEnumerable<Association> relatedAssociations, GenerationContext context)
{
// if new value if different from old one
using (writer.WriteIf(writer.GetDifferentExpression(writer.GetPropertySetValueExpression(),
writer.GetVariableExpression(property.Storage))))
{
// if the property is used as a FK, we ensure that it hasn't been already loaded or assigned
foreach (var relatedAssociation in relatedAssociations)
{
// first thing to check: ensure the association backend isn't already affected.
// if it is the case, then the property must not be manually set
// R# considers the following as an error, but the csc doesn't
//var memberName = ReflectionUtility.GetMemberInfo<DbLinq.Data.Linq.EntityRef<object>>(e => e.HasLoadedOrAssignedValue).Name;
var memberName = "HasLoadedOrAssignedValue";
using (writer.WriteIf(writer.GetMemberExpression(relatedAssociation.Storage, memberName)))
{
writer.WriteLine(writer.GetThrowStatement(writer.GetNewExpression(
writer.GetMethodCallExpression(
writer.GetLiteralFullType(
typeof(
System.Data.Linq.
ForeignKeyReferenceAlreadyHasValueException
)))
)));
}
}
// the before and after are used by extensions related to interfaces
// for example INotifyPropertyChanged
// here the code before the change
foreach (IImplementation implementation in context.Implementations())
implementation.WritePropertyBeforeSet(writer, property, context);
// property assignment
writer.WriteLine(
writer.GetStatement(
writer.GetAssignmentExpression(writer.GetVariableExpression(property.Storage),
writer.GetPropertySetValueExpression())));
// here the code after change
foreach (IImplementation implementation in context.Implementations())
implementation.WritePropertyAfterSet(writer, property, context);
}
}
/// <summary>
/// Writes property accessor
/// </summary>
/// <param name="writer"></param>
/// <param name="property"></param>
/// <param name="relatedAssociations"></param>
/// <param name="context"></param>
protected virtual void WriteClassPropertyAccessors(CodeWriter writer, Column property, IEnumerable<Association> relatedAssociations, GenerationContext context)
{
//generate [Column(...)] attribute
var column = NewAttributeDefinition<ColumnAttribute>();
column["Storage"] = property.Storage;
column["Name"] = property.Name;
column["DbType"] = property.DbType;
// be smart: we only write attributes when they differ from the default values
var columnAttribute = new ColumnAttribute();
if (property.IsPrimaryKey != columnAttribute.IsPrimaryKey)
column["IsPrimaryKey"] = property.IsPrimaryKey;
if (property.IsDbGenerated != columnAttribute.IsDbGenerated)
column["IsDbGenerated"] = property.IsDbGenerated;
if (property.AutoSync != DbLinq.Schema.Dbml.AutoSync.Default)
column["AutoSync"] = new EnumFullname("AutoSync", property.AutoSync);
if (property.CanBeNull != columnAttribute.CanBeNull)
column["CanBeNull"] = property.CanBeNull;
if (property.Expression != null)
column["Expression"] = property.Expression;
var specifications = property.AccessModifierSpecified
? GetSpecificationDefinition(property.AccessModifier)
: SpecificationDefinition.Public;
if (property.ModifierSpecified)
specifications |= GetSpecificationDefinition(property.Modifier);
//using (WriteAttributes(writer, context.Parameters.MemberExposedAttributes))
using (WriteAttributes(writer, GetAttributeNames(context, context.Parameters.MemberAttributes)))
using (writer.WriteAttribute(NewAttributeDefinition<DebuggerNonUserCodeAttribute>()))
using (writer.WriteAttribute(column))
using (writer.WriteProperty(specifications, property.Member, GetTypeOrExtendedType(writer, property)))
{
// on auto storage, we're just lazy
if (property.Storage == null)
writer.WriteAutomaticPropertyGetSet();
else
{
using (writer.WritePropertyGet())
{
writer.WriteLine(writer.GetReturnStatement(writer.GetVariableExpression(property.Storage)));
}
using (writer.WritePropertySet())
{
WriteClassPropertyAccessorSet(writer, property, relatedAssociations, context);
}
}
}
}
protected virtual void WriteClassPropertyBackingField(CodeWriter writer, Column property, GenerationContext context)
{
//AttributeDefinition autoGenAttribute = null;
//if (property.IsDbGenerated)
// autoGenAttribute = NewAttributeDefinition<AutoGenIdAttribute>();
//using (writer.WriteAttribute(autoGenAttribute))
// for auto-properties, we just won't generate a private field
if (property.Storage != null)
writer.WriteField(SpecificationDefinition.Private, property.Storage, GetTypeOrExtendedType(writer, property));
}
/// <summary>
/// Writes class property
/// </summary>
/// <param name="writer"></param>
/// <param name="property"></param>
/// <param name="relatedAssociations">non null if property is a FK</param>
/// <param name="context"></param>
protected virtual void WriteClassProperty(CodeWriter writer, Column property, IEnumerable<Association> relatedAssociations, GenerationContext context)
{
using (writer.WriteRegion(string.Format("{0} {1}", GetTypeOrExtendedType(writer, property), property.Member)))
{
WriteClassPropertyBackingField(writer, property, context);
WriteClassPropertyAccessors(writer, property, relatedAssociations, context);
}
}
protected virtual string GetTypeOrExtendedType(CodeWriter writer, Column property)
{
object extendedType = property.ExtendedType;
var enumType = extendedType as EnumType;
if (enumType != null)
return writer.GetEnumType(enumType.Name);
return writer.GetLiteralType(GetType(property.Type, property.CanBeNull));
}
/// <summary>
/// Loads the columns.
/// </summary>
/// <param name="schema">The schema.</param>
/// <param name="schemaName">Name of the schema.</param>
/// <param name="conn">The conn.</param>
/// <param name="nameAliases">The name aliases.</param>
/// <param name="nameFormat">The name format.</param>
/// <param name="names">The names.</param>
protected void LoadColumns(Database schema, SchemaName schemaName, IDbConnection conn, INameAliases nameAliases, NameFormat nameFormat, Names names)
{
var columnRows = ReadColumns(conn, schemaName.DbName);
foreach (var columnRow in columnRows)
{
var columnName = CreateColumnName(columnRow.ColumnName, columnRow.TableName, columnRow.TableSchema, nameAliases, nameFormat);
names.AddColumn(columnRow.TableName, columnName);
//find which table this column belongs to
string fullColumnDbName = GetFullDbName(columnRow.TableName, columnRow.TableSchema);
DbLinq.Schema.Dbml.Table tableSchema = schema.Tables.FirstOrDefault(tblSchema => fullColumnDbName == tblSchema.Name);
if (tableSchema == null)
{
WriteErrorLine("ERROR L46: Table '" + columnRow.TableName + "' not found for column " + columnRow.ColumnName);
continue;
}
var column = new Column();
column.Name = columnName.DbName;
column.Member = columnName.PropertyName;
column.DbType = columnRow.FullType;
if (columnRow.PrimaryKey.HasValue)
column.IsPrimaryKey = columnRow.PrimaryKey.Value;
bool? generated = (nameAliases != null) ? nameAliases.GetColumnGenerated(columnRow.ColumnName, columnRow.TableName, columnRow.TableSchema) : null;
if (!generated.HasValue)
generated = columnRow.Generated;
if (generated.HasValue)
column.IsDbGenerated = generated.Value;
AutoSync? autoSync = (nameAliases != null) ? nameAliases.GetColumnAutoSync(columnRow.ColumnName, columnRow.TableName, columnRow.TableSchema) : null;
if (autoSync.HasValue)
column.AutoSync = autoSync.Value;
// the Expression can originate from two sources:
// 1. DefaultValue
// 2. Expression
// we use any valid source (we can't have both)
if (column.IsDbGenerated && columnRow.DefaultValue != null)
column.Expression = columnRow.DefaultValue;
column.CanBeNull = columnRow.Nullable;
string columnTypeAlias = nameAliases != null ? nameAliases.GetColumnForcedType(columnRow.ColumnName, columnRow.TableName, columnRow.TableSchema) : null;
var columnType = MapDbType(columnName.DbName, columnRow);
var columnEnumType = columnType as EnumType;
if (columnEnumType != null)
{
var enumType = column.SetExtendedTypeAsEnumType();
enumType.Name = columnEnumType.Name;
foreach (KeyValuePair<string, int> enumValue in columnEnumType.EnumValues)
{
enumType[enumValue.Key] = enumValue.Value;
}
}
else if (columnTypeAlias != null)
column.Type = columnTypeAlias;
else
column.Type = columnType.ToString();
tableSchema.Type.Columns.Add(column);
}
}
static string GetStorageFieldName(Column column)
{
return GetStorageFieldName(column.Storage ?? column.Member);
}
static CodeTypeReference ToCodeTypeReference(Column column)
{
var t = System.Type.GetType(column.Type);
if (t == null)
return new CodeTypeReference(column.Type);
return t.IsValueType && column.CanBeNull
? new CodeTypeReference("System.Nullable", new CodeTypeReference(column.Type))
: new CodeTypeReference(column.Type);
}
CodeTypeMember CreateChangingMethodDecl(Column column)
{
return CreatePartialMethod(GetChangingMethodName(column.Member),
new CodeParameterDeclarationExpression(ToCodeTypeReference(column), "value"));
}
CodeTypeMember CreateChangedMethodDecl(Column column)
{
return CreatePartialMethod(GetChangedMethodName(column.Member));
}
