apply "replaceNamedArgByQuestionMark" on exec() function

This commit is contained in:
2021-07-18 03:59:47 +02:00
parent 0288a57ed9
commit bd88e7938d
2 changed files with 50 additions and 24 deletions

View File

@@ -172,7 +172,7 @@ class Connection(
override fun exec(sql: String, values: List<Any?>): QueryResult {
val compiledValues = compileArgs(values)
return stopwatchQuery(sql, compiledValues) {
connect().sendPreparedStatement(sql, compiledValues).join()
connect().sendPreparedStatement(replaceNamedArgByQuestionMark(sql), compiledValues).join()
}
}
@@ -215,37 +215,41 @@ class Connection(
private fun <T> replaceArgs(sql: String, values: Map<String, Any?>, block: ParametersQuery.() -> T): T {
val paramRegex = "(?<!:):([a-zA-Z0-9_-]+)".toRegex(RegexOption.IGNORE_CASE)
val newArgs = paramRegex.findAll(sql).map { match ->
val orderedArgs = paramRegex.findAll(sql).map { match ->
val name = match.groups[1]!!.value
values[name] ?: values[name.trimStart('_')] ?: queryError("""Parameter "$name" missing""", sql, values)
}.toList()
var newSql = sql
values.forEach { (key, _) ->
val regex = ":_?$key".toRegex()
newSql = newSql.replace(regex, "?")
}
return block(ParametersQuery(replaceNamedArgByQuestionMark(sql), orderedArgs))
}
return block(ParametersQuery(newSql, newArgs))
private fun replaceNamedArgByQuestionMark(sql: String): String =
"(?<!:):([a-zA-Z0-9_-]+)"
.toRegex(RegexOption.IGNORE_CASE)
.replace(sql, "?")
private fun insertArgsValuesIntoSql(sql: String, values: List<Any?>): String {
var i = 0
/* The regular expression matches a question mark "?" alone, not preceded or followed by another question mark */
return """(?<!\?)(\?)(?!\?)"""
.toRegex(RegexOption.IGNORE_CASE)
.replace(sql) {
values[i]
?.toString()
?.also { ++i }
?.let(this::escapeParameter)
?: queryError("Parameter $i missing", sql, values)
}
}
private fun <T> replaceArgsIntoSql(sql: String, values: List<Any?>, block: (String) -> T): T {
/* The regular expression matches a question mark "?" alone, not preceded or followed by another question mark */
val paramRegex = """(?<!\?)(\?)(?!\?)""".toRegex(RegexOption.IGNORE_CASE)
var i = 0
if (values.isNotEmpty()) {
/* for each question mark, replace by the value */
val newSql = paramRegex.replace(sql) {
values[i] ?: queryError("Parameter $i missing", sql, values)
val valToReplace = values[i].toString()
++i
escapeParameter(valToReplace)
}
return block(newSql)
}
return block(sql)
return if (values.isNotEmpty()) {
sql
.let(this::replaceNamedArgByQuestionMark)
.let { insertArgsValuesIntoSql(it, values) }
.let(block)
} else block(sql)
}
/**