Method parseUpdateField

cpp_src/core/query/sql/sqlparser.cc:642–699

}

UpdateEntry SQLParser::parseUpdateField(Tokenizer& parser) {
	auto tok = peekSqlToken(parser, FieldNameSqlToken, false);
	if (tok.Type() != TokenName) {
		const auto range = parser.Where(tok);
		throw SqlParserError(range, "Expected field name but found '{}' in query {}", tok.Text(), range);
	}
	UpdateEntry updateField{tok.Text(), {}};

	parser.SkipToken();
	tok = parser.NextToken();
	if (tok.Text() != "="sv) {
		const auto range = parser.Where(tok);
		throw SqlParserError(range, "Expected '=' but found '{}' in query, '{}'", tok.Text(), range);
	}

	const size_t startPos = parser.GetPos();
	bool withArrayExpressions = false;

	tok = parser.NextToken(Tokenizer::Flags::NoFlags);
	if (tok.Text() == "["sv) {
		std::ignore = updateField.Values().MarkArray();
		parseArray(parser, tok, &updateField);
		updateField.SetIsExpression(false);
	} else if (tok.Text() == "array_remove"sv || tok.Text() == "array_remove_once"sv) {
		parseCommand(parser);

		updateField.SetIsExpression(true);
		updateField.Values() = {Variant(std::string(parser.Begin() + startPos, parser.GetPos() - startPos))};
	} else {
		addUpdateValue(tok, parser, updateField);
	}

	tok = parser.PeekToken(Tokenizer::Flags::NoFlags);
	while (tok.Text() == "|"sv) {
		parser.SkipToken();
		tok = parser.NextToken();
		if (tok.Text() != "|"sv) {
			const auto range = parser.Where(tok);
			throw SqlParserError(range, "Expected '|', not '{}', {}", tok.Text(), range);
		}
		tok = parser.NextToken();
		if (tok.Type() != TokenName) {
			const auto range = parser.Where(tok);
			throw SqlParserError(range, "Expected field name, but found '{}' in query, {}", tok.Text(), range);
		} else if (tok.Text() == "array_remove"sv || tok.Text() == "array_remove_once"sv) {
			parseCommand(parser);
		}
		tok = parser.PeekToken();
		withArrayExpressions = true;
	}

	if (withArrayExpressions) {
		updateField.SetIsExpression(true);
		updateField.Values() = {Variant(std::string(parser.Begin() + startPos, parser.GetPos() - startPos))};
	}

	return updateField;
}