Example #1
0
        public override string GenerateQuery(Type type)
        {
            string tableName = TableAttribute.GetAttributeTable(type);

            StringBuilder stringBuilder = new StringBuilder($"DELETE FROM {tableName}");

            if (WhereSpecifiers.Count > 0)
            {
                stringBuilder.Append(" WHERE ");
                List <string> wheres = new List <string>();
                foreach (var specifier in WhereSpecifiers)
                {
                    PropertyInfo propertyInfo = type.GetProperty(specifier.Key);
                    if (propertyInfo == null)
                    {
                        throw new Exception("Tried to select a non-existing column!");
                    }

                    if (!SerializerMap.Serializers.TryGetValue(propertyInfo.PropertyType, out var serializer))
                    {
                        throw new Exception("VoidORM can't serialize the type " + propertyInfo.PropertyType.Name + "!");
                    }

                    string strValue = serializer.Serialize(specifier.Value, Database.DatabaseDriver);
                    wheres.Add("`" + specifier.Key + "` " + specifier.Comparator + " " + strValue);
                }

                stringBuilder.Append(string.Join(" AND ", wheres));
            }

            stringBuilder.Append(";");
            return(stringBuilder.ToString());
        }
Example #2
0
        public override string GenerateQuery(Type type)
        {
            string tableName = TableAttribute.GetAttributeTable(type);

            StringBuilder stringBuilder = new StringBuilder($"ALTER TABLE {tableName} ");
            List <string> columnStrings = new List <string>();

            foreach (var specifier in AddColumns)
            {
                columnStrings.Add($"ADD COLUMN `{specifier.Name}` {specifier.DataType}");
            }

            stringBuilder.Append(string.Join(", ", columnStrings) + ";");
            return(stringBuilder.ToString());
        }
Example #3
0
        public override string GenerateQuery(Type type)
        {
            string        tableName     = TableAttribute.GetAttributeTable(type);
            StringBuilder stringBuilder = new StringBuilder($"UPDATE {tableName} SET ");

            List <string> updateStatements = new List <string>();
            List <string> primaryKeys      = new List <string>();

            foreach (var specifier in InsertSpecifiers)
            {
                PropertyInfo propertyInfo = type.GetProperty(specifier.Key);
                if (propertyInfo == null)
                {
                    throw new Exception("Tried to select a non-existing column!");
                }

                if (!SerializerMap.Serializers.TryGetValue(propertyInfo.PropertyType, out var serializer))
                {
                    throw new Exception("VoidORM can't serialize the type " + propertyInfo.PropertyType.Name + "!");
                }

                string strValue = serializer.Serialize(specifier.Value, Database.DatabaseDriver);

                bool isPrimaryKey = PrimaryKeyAttribute.IsPrimaryKey(propertyInfo);
                if (isPrimaryKey)
                {
                    primaryKeys.Add("`" + specifier.Key + "` = " + strValue);
                }
                else
                {
                    updateStatements.Add("`" + specifier.Key + "` = " + strValue);
                }
            }

            stringBuilder.Append(string.Join(", ", updateStatements));
            stringBuilder.Append(" WHERE " + string.Join(" AND ", primaryKeys));
            stringBuilder.Append(";");

            return(stringBuilder.ToString());
        }
Example #4
0
        public override string GenerateQuery(Type type)
        {
            string        tableName     = TableAttribute.GetAttributeTable(type);
            string        insertType    = ShouldReplace ? "REPLACE" : "INSERT";
            StringBuilder stringBuilder = new StringBuilder($"{insertType} INTO {tableName} (");

            List <string> columnNames = new List <string>();
            List <string> values      = new List <string>();

            foreach (var specifier in InsertSpecifiers)
            {
                PropertyInfo propertyInfo = type.GetProperty(specifier.Key);
                if (propertyInfo == null)
                {
                    throw new Exception("Tried to select a non-existing column!");
                }

                columnNames.Add("`" + specifier.Key + "`");

                if (!SerializerMap.Serializers.TryGetValue(propertyInfo.PropertyType, out var serializer))
                {
                    throw new Exception("VoidORM can't serialize the type " + propertyInfo.PropertyType.Name + "!");
                }

                string strValue = serializer.Serialize(specifier.Value, Database.DatabaseDriver);
                values.Add(strValue);
            }

            stringBuilder.Append(string.Join(", ", columnNames));
            stringBuilder.Append(")");

            stringBuilder.Append(" VALUES (");
            stringBuilder.Append(string.Join(", ", values));
            stringBuilder.Append(");");

            return(stringBuilder.ToString());
        }
Example #5
0
        public override string GenerateQuery(Type type)
        {
            string tableName = TableAttribute.GetAttributeTable(type);

            StringBuilder queryBuilder = new StringBuilder($"CREATE TABLE IF NOT EXISTS `{tableName}` (");

            List <string> tableFields = new List <string>();
            List <string> primaryKeys = new List <string>();

            var properties = type.GetProperties();

            foreach (var property in properties)
            {
                string propertyTypeName = property.PropertyType.Name;
                string propertyName     = property.Name;

                string sqlType = null;

                try
                {
                    sqlType = CSharpTypesToSqlTypesDictionary[propertyTypeName];
                }
                catch (Exception)
                {
                    throw new NotSupportedException("The C# type " + propertyTypeName + " is not supported for C# to SQL conversion.");
                }

                string dataType = sqlType;

                int?columnLength = ColumnLengthAttribute.GetAttributeColumnLength(property);
                if (columnLength != null || propertyTypeName == "String")
                {
                    dataType = string.Format(dataType, columnLength ?? 50);
                }

                bool isAutoIncrement = AutoIncrementAttribute.IsAutoIncrement(property);
                if (isAutoIncrement)
                {
                    if (Database.DatabaseDriver is MySQLoo)
                    {
                        dataType += " AUTO_INCREMENT";
                    }
                }

                bool isPrimaryKey = PrimaryKeyAttribute.IsPrimaryKey(property);
                if (isPrimaryKey)
                {
                    // Check if is SQLite/MySQL
                    if (Database.DatabaseDriver is MySQLoo)
                    {
                        primaryKeys.Add(propertyName);
                    }
                    else if (Database.DatabaseDriver is SQLite)
                    {
                        dataType += " PRIMARY KEY";
                    }
                }

                tableFields.Add($"{propertyName} {dataType}");
            }

            queryBuilder.Append(string.Join(", ", tableFields));
            if (primaryKeys.Count > 0)
            {
                queryBuilder.Append(", PRIMARY KEY (");
                queryBuilder.Append(string.Join(", ", primaryKeys));
                queryBuilder.Append(")");
            }

            queryBuilder.Append(");");

            return(queryBuilder.ToString());
        }
Example #6
0
        public override string GenerateQuery(Type type)
        {
            string tableName = TableAttribute.GetAttributeTable(type);

            return("DROP TABLE " + tableName + ";");
        }