/// <inheritdoc />
public string GetColumnName(PropertySchema property)
{
var columnAttribute = property.FindAttribute <ColumnAttribute>();
return(columnAttribute != null
? this.NameEscaper.EscapeColumnName(columnAttribute.Name)
: this.GetColumnNameFromType(property));
}
private int?GetMaxLength(PropertySchema property)
{
if (property.EffectiveType == typeof(char))
{
return(1);
}
return(property.FindAttribute <MaxLengthAttribute>()?.Length);
}
private ColumnSchema MakeColumnSchema(int index, PropertySchema property, ColumnUsage columnUsage)
{
var propertyName = property.Name;
return(new ColumnSchema(
index,
propertyName,
this.columnNameConvention.GetColumnName(property),
this.nameEscaper.EscapeColumnName(propertyName),
propertyName,
columnUsage,
this.GetDbType(property)));
}
private DbTypeEx GetDbType(PropertySchema property)
{
if (property.EffectiveType.GetTypeInfo().IsEnum)
{
return(new DbTypeEx(DbType.Int32, property.IsNullable, null));
}
if (!this.typeMapping.TryGetValue(property.EffectiveType, out var dbType))
{
throw new NotSupportedException("Unknown property type: " + property.EffectiveType);
}
var allowNull = property.IsNullable || (!property.Type.GetTypeInfo().IsValueType&& property.FindAttribute <RequiredAttribute>() == null);
return(new DbTypeEx(dbType, allowNull, this.GetMaxLength(property)));
}
private static ColumnUsage GetColumnUsage(bool explicitKeyDefined, PropertySchema property)
{
var isPrimaryKey = explicitKeyDefined
? property.FindAttribute <KeyAttribute>() != null
: string.Equals(property.Name, "Id", StringComparison.OrdinalIgnoreCase);
if (!property.PropertyInfo.CanWrite)
{
return(isPrimaryKey
? ColumnUsage.ComputedPrimaryKey
: ColumnUsage.ComputedColumn);
}
var generatedAttribute = property.FindAttribute <DatabaseGeneratedAttribute>();
return(isPrimaryKey
? GetPrimaryKeyUsage(generatedAttribute)
: GetColumnUsage(generatedAttribute));
}
/// <summary>
/// Gets the column name from the given property.
/// </summary>
protected virtual string GetColumnNameFromType(PropertySchema property)
{
return(this.NameEscaper.EscapeColumnName(property.Name));
}
