public ColumnModification(
[NotNull] IUpdateEntry entry,
[NotNull] IProperty property,
[NotNull] IRelationalPropertyAnnotations propertyAnnotations,
[NotNull] Func <string> generateParameterName,
bool isRead,
bool isWrite,
bool isKey,
bool isCondition,
bool isConcurrencyToken)
{
Check.NotNull(entry, nameof(entry));
Check.NotNull(property, nameof(property));
Check.NotNull(propertyAnnotations, nameof(propertyAnnotations));
Check.NotNull(generateParameterName, nameof(generateParameterName));
Entry = entry;
Property = property;
ColumnName = propertyAnnotations.ColumnName;
_generateParameterName = generateParameterName;
IsRead = isRead;
IsWrite = isWrite;
IsKey = isKey;
IsCondition = isCondition;
IsConcurrencyToken = isConcurrencyToken;
}
/// <summary>
/// Creates a new <see cref="ColumnModification" /> instance.
/// </summary>
/// <param name="entry"> The <see cref="IUpdateEntry" /> that represents the entity that is being modified. </param>
/// <param name="property"> The property that maps to the column. </param>
/// <param name="propertyAnnotations"> Provides access to relational-specific annotations for the column. </param>
/// <param name="generateParameterName"> A delegate for generating parameter names for the update SQL. </param>
/// <param name="isRead"> Indicates whether or not a value must be read from the database for the column. </param>
/// <param name="isWrite"> Indicates whether or not a value must be written to the database for the column. </param>
/// <param name="isKey"> Indicates whether or not the column part of a primary or alternate key.</param>
/// <param name="isCondition"> Indicates whether or not the column is used in the <c>WHERE</c> clause when updating. </param>
/// <param name="isConcurrencyToken"> Indicates whether or not the column is acting as an optimistic concurrency token. </param>
public ColumnModification(
[NotNull] IUpdateEntry entry,
[NotNull] IProperty property,
[NotNull] IRelationalPropertyAnnotations propertyAnnotations,
[NotNull] Func <string> generateParameterName,
bool isRead,
bool isWrite,
bool isKey,
bool isCondition,
bool isConcurrencyToken)
: this(
Check.NotNull(propertyAnnotations, nameof(propertyAnnotations)).ColumnName,
originalValue : null,
value : null,
property : property,
isRead : isRead,
isWrite : isWrite,
isKey : isKey,
isCondition : isCondition)
{
Check.NotNull(entry, nameof(entry));
Check.NotNull(property, nameof(property));
Check.NotNull(generateParameterName, nameof(generateParameterName));
Entry = entry;
IsConcurrencyToken = isConcurrencyToken;
_generateParameterName = generateParameterName;
_useParameters = true;
}
public ColumnModification(
[NotNull] IUpdateEntry entry,
[NotNull] IProperty property,
[NotNull] IRelationalPropertyAnnotations propertyAnnotations,
[NotNull] ParameterNameGenerator parameterNameGenerator,
bool isRead,
bool isWrite,
bool isKey,
bool isCondition)
{
Check.NotNull(entry, nameof(entry));
Check.NotNull(property, nameof(property));
Check.NotNull(propertyAnnotations, nameof(propertyAnnotations));
Check.NotNull(parameterNameGenerator, nameof(parameterNameGenerator));
Entry = entry;
Property = property;
ColumnName = propertyAnnotations.ColumnName;
_parameterName = isWrite
? new LazyRef <string>(parameterNameGenerator.GenerateNext)
: new LazyRef <string>((string)null);
_originalParameterName = isCondition
? new LazyRef <string>(parameterNameGenerator.GenerateNext)
: new LazyRef <string>((string)null);
_outputParameterName = isRead
? new LazyRef <string>(parameterNameGenerator.GenerateNext)
: new LazyRef <string>((string)null);
IsRead = isRead;
IsWrite = isWrite;
IsKey = isKey;
IsCondition = isCondition;
}
/// <summary>
/// Oracle值生成策略
/// </summary>
/// <param name="fallbackToModel">回退模式</param>
/// <returns></returns>
public virtual OracleValueGenerationStrategy?GetOracleValueGenerationStrategy(bool fallbackToModel)
{
OracleValueGenerationStrategy?result = (OracleValueGenerationStrategy?)Annotations.Metadata[OracleAnnotationNames.ValueGenerationStrategy];
if (result.HasValue)
{
return(result);
}
IRelationalPropertyAnnotations relationalPropertyAnnotations = Property.Relational();
if (!fallbackToModel || Property.ValueGenerated != ValueGenerated.OnAdd || relationalPropertyAnnotations.DefaultValue != null || relationalPropertyAnnotations.DefaultValueSql != null || relationalPropertyAnnotations.ComputedColumnSql != null)
{
return(null);
}
OracleValueGenerationStrategy?valueGenerationStrategy = Property.DeclaringEntityType.Model.Oracle().ValueGenerationStrategy;
if (valueGenerationStrategy == OracleValueGenerationStrategy.SequenceHiLo && IsCompatibleSequenceHiLo(Property))
{
return(OracleValueGenerationStrategy.SequenceHiLo);
}
if (valueGenerationStrategy == OracleValueGenerationStrategy.IdentityColumn && IsCompatibleIdentityColumn(Property))
{
return(OracleValueGenerationStrategy.IdentityColumn);
}
return(null);
}
public override TableMetaInfo GetTableMetaInfo(Type type)
{
IModel model = db.Model;
IEntityType entityType = model.FindEntityType(type);
IEntityType[] allEntityTypes = model.GetEntityTypes().ToArray();
IProperty[] entityProperties = entityType.GetProperties().ToArray();
IRelationalEntityTypeAnnotations mapping = entityType.Relational();
EFPropertyInfo[] pProperties = new EFPropertyInfo[entityProperties.Length];
// Column info
for (int i = 0; i < entityProperties.Length; i++) // (var property in entityProperties) {
{
IProperty prop = entityProperties[i];
IRelationalPropertyAnnotations rProp = prop.Relational();
if (rProp == null || rProp.ColumnName.IsNulle())
{
continue;
}
bool isIndex = prop.IsIndex();
var idx1 = prop.GetContainingKeys().ToArray();
EFPropertyInfo pInfo = new EFPropertyInfo()
{
EntityName = prop.Name,
ColumnName = rProp.ColumnName,
IsIdentity = false,
IsKey = prop.IsKey(),
IsIndex = isIndex,
IsPrimaryKey = prop.IsPrimaryKey()
};
string columnType = rProp.ColumnType;
pProperties[i] = pInfo;
}
;
var info = new TableMetaInfo()
{
TableName = mapping.TableName, //table.Table, // watch out! not table.Name
TableSchema = mapping.Schema, //table.Schema,
TypeNameFull = entityType.Name, // or: == type.FullName,
TypeName = type.Name,
TableColumnNames = pProperties.Select(p => p.ColumnName).Where(n => n.NotNulle()).ToArray(), //declaredProps.Select(dp => dp.Name).ToArray(),
EntityPropertyNames = pProperties.Select(p => p.EntityName).Where(n => n.NotNulle()).ToArray(), //mapped.Select(dd => dd.Name).ToArray()
KeyColumnNames = pProperties.Where(p => p != null && p.IsKey).Select(p => p.ColumnName).ToArray(), // table.ElementType.KeyMembers.Select(m => m.Name).ToArray(),
};
return(info);
}
public IEnumerable <ColumnMapping <TEntity> > GetColumns()
{
foreach (IProperty property in _entityType.GetProperties())
{
IRelationalPropertyAnnotations relationalProperty = property.Relational();
bool isKey = _entityType.FindPrimaryKey().Properties.Contains(property);
_relationSqlTypeTranslator.GetMetaData(relationalProperty.ColumnType, out int?precision, out int?scale, out System.Data.DbType dbType);
yield return(new ColumnMapping <TEntity>(
dbColumnName: relationalProperty.ColumnName,
dbType: dbType,
isIdentity: property.ValueGenerated == ValueGenerated.OnAdd,
propertyInfo: typeof(TEntity).GetProperty(property.Name),
precision: precision,
isRequired: !property.IsNullable,
length: property.GetMaxLength(),
scale: scale
));
}
}
public static DatabaseColumn GetColumn(this DatabaseModel model, IRelationalEntityTypeAnnotations table, IRelationalPropertyAnnotations column)
{
return(GetColumn(model, table.Schema, table.TableName, column.ColumnName));
}
public static bool ColumnExists(this DatabaseModel model,
IRelationalEntityTypeAnnotations table,
IRelationalPropertyAnnotations column)
{
return(ColumnExists(model, table.Schema, table.TableName, column.ColumnName));
}