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-rw-r--r--src/main/kotlin/moe/nea/ledger/Ledger.kt2
-rw-r--r--src/main/kotlin/moe/nea/ledger/LedgerEntry.kt2
-rw-r--r--src/main/kotlin/moe/nea/ledger/LedgerLogger.kt7
-rw-r--r--src/main/kotlin/moe/nea/ledger/MCUUIDUtil.kt (renamed from src/main/kotlin/moe/nea/ledger/UUIDUtil.kt)23
-rw-r--r--src/main/kotlin/moe/nea/ledger/QueryCommand.kt9
-rw-r--r--src/main/kotlin/moe/nea/ledger/database/DBLogEntry.kt5
-rw-r--r--src/main/kotlin/moe/nea/ledger/database/DBSchema.kt545
-rw-r--r--src/main/kotlin/moe/nea/ledger/database/Database.kt3
8 files changed, 21 insertions, 575 deletions
diff --git a/src/main/kotlin/moe/nea/ledger/Ledger.kt b/src/main/kotlin/moe/nea/ledger/Ledger.kt
index 2980258..b03395a 100644
--- a/src/main/kotlin/moe/nea/ledger/Ledger.kt
+++ b/src/main/kotlin/moe/nea/ledger/Ledger.kt
@@ -1,6 +1,7 @@
package moe.nea.ledger
import com.google.gson.Gson
+import io.github.notenoughupdates.moulconfig.Config
import io.github.notenoughupdates.moulconfig.managed.ManagedConfig
import moe.nea.ledger.config.LedgerConfig
import moe.nea.ledger.config.UpdateUi
@@ -116,6 +117,7 @@ class Ledger {
di.registerSingleton(Minecraft.getMinecraft())
di.registerSingleton(gson)
di.register(LedgerConfig::class.java, DIProvider { managedConfig.instance })
+ di.register(Config::class.java, DIProvider.fromInheritance(LedgerConfig::class.java))
di.registerInjectableClasses(
AccessorySwapperDetection::class.java,
AuctionHouseDetection::class.java,
diff --git a/src/main/kotlin/moe/nea/ledger/LedgerEntry.kt b/src/main/kotlin/moe/nea/ledger/LedgerEntry.kt
index ec5548f..d4a3932 100644
--- a/src/main/kotlin/moe/nea/ledger/LedgerEntry.kt
+++ b/src/main/kotlin/moe/nea/ledger/LedgerEntry.kt
@@ -22,7 +22,7 @@ data class LedgerEntry(
addProperty("profileId", profileId.toString())
addProperty(
"playerId",
- UUIDUtil.getPlayerUUID().toString()
+ MCUUIDUtil.getPlayerUUID().toString()
)
}
}
diff --git a/src/main/kotlin/moe/nea/ledger/LedgerLogger.kt b/src/main/kotlin/moe/nea/ledger/LedgerLogger.kt
index 913d1b5..6049aa2 100644
--- a/src/main/kotlin/moe/nea/ledger/LedgerLogger.kt
+++ b/src/main/kotlin/moe/nea/ledger/LedgerLogger.kt
@@ -6,6 +6,7 @@ import moe.nea.ledger.database.DBItemEntry
import moe.nea.ledger.database.DBLogEntry
import moe.nea.ledger.database.Database
import moe.nea.ledger.events.ChatReceived
+import moe.nea.ledger.utils.ULIDWrapper
import moe.nea.ledger.utils.di.Inject
import net.minecraft.client.Minecraft
import net.minecraft.util.ChatComponentText
@@ -86,10 +87,10 @@ class LedgerLogger {
if (shouldLog)
printToChat(entry)
Ledger.logger.info("Logging entry of type ${entry.transactionType}")
- val transactionId = UUIDUtil.createULIDAt(entry.timestamp)
+ val transactionId = ULIDWrapper.createULIDAt(entry.timestamp)
DBLogEntry.insert(database.connection) {
- it[DBLogEntry.profileId] = currentProfile ?: UUIDUtil.NIL_UUID
- it[DBLogEntry.playerId] = UUIDUtil.getPlayerUUID()
+ it[DBLogEntry.profileId] = currentProfile ?: MCUUIDUtil.NIL_UUID
+ it[DBLogEntry.playerId] = MCUUIDUtil.getPlayerUUID()
it[DBLogEntry.type] = entry.transactionType
it[DBLogEntry.transactionId] = transactionId
}
diff --git a/src/main/kotlin/moe/nea/ledger/UUIDUtil.kt b/src/main/kotlin/moe/nea/ledger/MCUUIDUtil.kt
index 5549908..79068cc 100644
--- a/src/main/kotlin/moe/nea/ledger/UUIDUtil.kt
+++ b/src/main/kotlin/moe/nea/ledger/MCUUIDUtil.kt
@@ -1,25 +1,10 @@
package moe.nea.ledger
import com.mojang.util.UUIDTypeAdapter
-import io.azam.ulidj.ULID
import net.minecraft.client.Minecraft
-import java.time.Instant
import java.util.UUID
-import kotlin.random.Random
-object UUIDUtil {
- @JvmInline
- value class ULIDWrapper(
- val wrapped: String
- ) {
- fun getTimestamp(): Instant {
- return Instant.ofEpochMilli(ULID.getTimestamp(wrapped))
- }
-
- init {
- require(ULID.isValid(wrapped))
- }
- }
+object MCUUIDUtil {
fun parseDashlessUuid(string: String) = UUIDTypeAdapter.fromString(string)
val NIL_UUID = UUID(0L, 0L)
@@ -31,12 +16,6 @@ object UUIDUtil {
return currentUUID
}
- fun createULIDAt(timestamp: Instant): ULIDWrapper {
- return ULIDWrapper(ULID.generate(
- timestamp.toEpochMilli(),
- Random.nextBytes(10)
- ))
- }
private var lastKnownUUID: UUID = NIL_UUID
diff --git a/src/main/kotlin/moe/nea/ledger/QueryCommand.kt b/src/main/kotlin/moe/nea/ledger/QueryCommand.kt
index 9967a4a..19bd5d0 100644
--- a/src/main/kotlin/moe/nea/ledger/QueryCommand.kt
+++ b/src/main/kotlin/moe/nea/ledger/QueryCommand.kt
@@ -1,11 +1,12 @@
package moe.nea.ledger
-import moe.nea.ledger.database.ANDExpression
-import moe.nea.ledger.database.BooleanExpression
-import moe.nea.ledger.database.Clause
+import moe.nea.ledger.database.sql.ANDExpression
+import moe.nea.ledger.database.sql.BooleanExpression
+import moe.nea.ledger.database.sql.Clause
import moe.nea.ledger.database.DBItemEntry
import moe.nea.ledger.database.DBLogEntry
import moe.nea.ledger.database.Database
+import moe.nea.ledger.utils.ULIDWrapper
import moe.nea.ledger.utils.di.Inject
import net.minecraft.command.CommandBase
import net.minecraft.command.ICommandSender
@@ -92,7 +93,7 @@ class QueryCommand : CommandBase() {
query.where(ANDExpression(value))
}
query.limit(80u)
- val dedup = mutableSetOf<UUIDUtil.ULIDWrapper>()
+ val dedup = mutableSetOf<ULIDWrapper>()
query.forEach {
val type = it[DBLogEntry.type]
val transactionId = it[DBLogEntry.transactionId]
diff --git a/src/main/kotlin/moe/nea/ledger/database/DBLogEntry.kt b/src/main/kotlin/moe/nea/ledger/database/DBLogEntry.kt
index 77ac215..b162c6f 100644
--- a/src/main/kotlin/moe/nea/ledger/database/DBLogEntry.kt
+++ b/src/main/kotlin/moe/nea/ledger/database/DBLogEntry.kt
@@ -3,6 +3,11 @@ package moe.nea.ledger.database
import moe.nea.ledger.ItemChange
import moe.nea.ledger.ItemId
import moe.nea.ledger.TransactionType
+import moe.nea.ledger.database.columns.DBDouble
+import moe.nea.ledger.database.columns.DBEnum
+import moe.nea.ledger.database.columns.DBString
+import moe.nea.ledger.database.columns.DBUlid
+import moe.nea.ledger.database.columns.DBUuid
object DBLogEntry : Table("LogEntry") {
val transactionId = column("transactionId", DBUlid)
diff --git a/src/main/kotlin/moe/nea/ledger/database/DBSchema.kt b/src/main/kotlin/moe/nea/ledger/database/DBSchema.kt
deleted file mode 100644
index 492f261..0000000
--- a/src/main/kotlin/moe/nea/ledger/database/DBSchema.kt
+++ /dev/null
@@ -1,545 +0,0 @@
-package moe.nea.ledger.database
-
-import moe.nea.ledger.UUIDUtil
-import java.sql.Connection
-import java.sql.PreparedStatement
-import java.sql.ResultSet
-import java.time.Instant
-import java.util.UUID
-
-interface DBSchema {
- val tables: List<Table>
-}
-
-interface DBType<T> {
- val dbType: String
-
- fun get(result: ResultSet, index: Int): T
- fun set(stmt: PreparedStatement, index: Int, value: T)
- fun getName(): String = javaClass.simpleName
- fun <R> mapped(
- from: (R) -> T,
- to: (T) -> R,
- ): DBType<R> {
- return object : DBType<R> {
- override fun getName(): String {
- return "Mapped(${this@DBType.getName()})"
- }
-
- override val dbType: String
- get() = this@DBType.dbType
-
- override fun get(result: ResultSet, index: Int): R {
- return to(this@DBType.get(result, index))
- }
-
- override fun set(stmt: PreparedStatement, index: Int, value: R) {
- this@DBType.set(stmt, index, from(value))
- }
- }
- }
-}
-
-object DBUuid : DBType<UUID> {
- override val dbType: String
- get() = "TEXT"
-
- override fun get(result: ResultSet, index: Int): UUID {
- return UUIDUtil.parseDashlessUuid(result.getString(index))
- }
-
- override fun set(stmt: PreparedStatement, index: Int, value: UUID) {
- stmt.setString(index, value.toString())
- }
-}
-
-object DBUlid : DBType<UUIDUtil.ULIDWrapper> {
- override val dbType: String
- get() = "TEXT"
-
- override fun get(result: ResultSet, index: Int): UUIDUtil.ULIDWrapper {
- val text = result.getString(index)
- return UUIDUtil.ULIDWrapper(text)
- }
-
- override fun set(stmt: PreparedStatement, index: Int, value: UUIDUtil.ULIDWrapper) {
- stmt.setString(index, value.wrapped)
- }
-}
-
-object DBString : DBType<String> {
- override val dbType: String
- get() = "TEXT"
-
- override fun get(result: ResultSet, index: Int): String {
- return result.getString(index)
- }
-
- override fun set(stmt: PreparedStatement, index: Int, value: String) {
- stmt.setString(index, value)
- }
-}
-
-class DBEnum<T : Enum<T>>(
- val type: Class<T>,
-) : DBType<T> {
- companion object {
- inline operator fun <reified T : Enum<T>> invoke(): DBEnum<T> {
- return DBEnum(T::class.java)
- }
- }
-
- override val dbType: String
- get() = "TEXT"
-
- override fun getName(): String {
- return "DBEnum(${type.simpleName})"
- }
-
- override fun set(stmt: PreparedStatement, index: Int, value: T) {
- stmt.setString(index, value.name)
- }
-
- override fun get(result: ResultSet, index: Int): T {
- val name = result.getString(index)
- return java.lang.Enum.valueOf(type, name)
- }
-}
-
-object DBDouble : DBType<Double> {
- override val dbType: String
- get() = "DOUBLE"
-
- override fun get(result: ResultSet, index: Int): Double {
- return result.getDouble(index)
- }
-
- override fun set(stmt: PreparedStatement, index: Int, value: Double) {
- stmt.setDouble(index, value)
- }
-}
-
-object DBInt : DBType<Long> {
- override val dbType: String
- get() = "INTEGER"
-
- override fun get(result: ResultSet, index: Int): Long {
- return result.getLong(index)
- }
-
- override fun set(stmt: PreparedStatement, index: Int, value: Long) {
- stmt.setLong(index, value)
- }
-}
-
-object DBInstant : DBType<Instant> {
- override val dbType: String
- get() = "INTEGER"
-
- override fun set(stmt: PreparedStatement, index: Int, value: Instant) {
- stmt.setLong(index, value.toEpochMilli())
- }
-
- override fun get(result: ResultSet, index: Int): Instant {
- return Instant.ofEpochMilli(result.getLong(index))
- }
-}
-
-class Column<T> @Deprecated("Use Table.column instead") constructor(
- val table: Table,
- val name: String,
- val type: DBType<T>
-) {
- val sqlName get() = "`$name`"
- val qualifiedSqlName get() = table.sqlName + "." + sqlName
-}
-
-interface Constraint {
- val affectedColumns: Collection<Column<*>>
- fun asSQL(): String
-}
-
-class UniqueConstraint(val columns: List<Column<*>>) : Constraint {
- init {
- require(columns.isNotEmpty())
- }
-
- override val affectedColumns: Collection<Column<*>>
- get() = columns
-
- override fun asSQL(): String {
- return "UNIQUE (${columns.joinToString() { it.sqlName }})"
- }
-}
-
-abstract class Table(val name: String) {
- val sqlName get() = "`$name`"
- protected val _mutable_columns: MutableList<Column<*>> = mutableListOf()
- protected val _mutable_constraints: MutableList<Constraint> = mutableListOf()
- val columns: List<Column<*>> get() = _mutable_columns
- val constraints get() = _mutable_constraints
- protected fun unique(vararg columns: Column<*>) {
- _mutable_constraints.add(UniqueConstraint(columns.toList()))
- }
-
- protected fun <T> column(name: String, type: DBType<T>): Column<T> {
- @Suppress("DEPRECATION") val column = Column(this, name, type)
- _mutable_columns.add(column)
- return column
- }
-
- fun debugSchema() {
- val nameWidth = columns.maxOf { it.name.length }
- val typeWidth = columns.maxOf { it.type.getName().length }
- val totalWidth = maxOf(2 + nameWidth + 3 + typeWidth + 2, name.length + 4)
- val adjustedTypeWidth = totalWidth - nameWidth - 2 - 3 - 2
-
- var string = "\n"
- string += ("+" + "-".repeat(totalWidth - 2) + "+\n")
- string += ("| $name${" ".repeat(totalWidth - 4 - name.length)} |\n")
- string += ("+" + "-".repeat(totalWidth - 2) + "+\n")
- for (column in columns) {
- string += ("| ${column.name}${" ".repeat(nameWidth - column.name.length)} |")
- string += (" ${column.type.getName()}" +
- "${" ".repeat(adjustedTypeWidth - column.type.getName().length)} |\n")
- }
- string += ("+" + "-".repeat(totalWidth - 2) + "+")
- println(string)
- }
-
- fun createIfNotExists(
- connection: Connection,
- filteredColumns: List<Column<*>> = columns
- ) {
- val properties = mutableListOf<String>()
- for (column in filteredColumns) {
- properties.add("${column.sqlName} ${column.type.dbType}")
- }
- val columnSet = filteredColumns.toSet()
- for (constraint in constraints) {
- if (columnSet.containsAll(constraint.affectedColumns)) {
- properties.add(constraint.asSQL())
- }
- }
- connection.prepareAndLog("CREATE TABLE IF NOT EXISTS $sqlName (" + properties.joinToString() + ")")
- .execute()
- }
-
- fun alterTableAddColumns(
- connection: Connection,
- newColumns: List<Column<*>>
- ) {
- for (column in newColumns) {
- connection.prepareAndLog("ALTER TABLE $sqlName ADD ${column.sqlName} ${column.type.dbType}")
- .execute()
- }
- for (constraint in constraints) {
- // TODO: automatically add constraints, maybe (or maybe move constraints into the upgrade schema)
- }
- }
-
- enum class OnConflict {
- FAIL,
- IGNORE,
- REPLACE,
- ;
-
- fun asSql(): String {
- return name
- }
- }
-
- fun insert(connection: Connection, onConflict: OnConflict = OnConflict.FAIL, block: (InsertStatement) -> Unit) {
- val insert = InsertStatement(HashMap())
- block(insert)
- require(insert.properties.keys == columns.toSet())
- val columnNames = columns.joinToString { it.sqlName }
- val valueNames = columns.joinToString { "?" }
- val statement =
- connection.prepareAndLog("INSERT OR ${onConflict.asSql()} INTO $sqlName ($columnNames) VALUES ($valueNames)")
- for ((index, column) in columns.withIndex()) {
- (column as Column<Any>).type.set(statement, index + 1, insert.properties[column]!!)
- }
- statement.execute()
- }
-
- fun from(connection: Connection): Query {
- return Query(connection, mutableListOf(), this)
- }
-
- fun selectAll(connection: Connection): Query {
- return Query(connection, columns.toMutableList(), this)
- }
-}
-
-class InsertStatement(val properties: MutableMap<Column<*>, Any>) {
- operator fun <T : Any> set(key: Column<T>, value: T) {
- properties[key] = value
- }
-}
-
-fun Connection.prepareAndLog(statement: String): PreparedStatement {
- println("Preparing to execute $statement")
- return prepareStatement(statement)
-}
-
-interface SQLQueryComponent {
- fun asSql(): String
-
- /**
- * @return the next writable index (should equal to the amount of `?` in [asSql] + [startIndex])
- */
- fun appendToStatement(stmt: PreparedStatement, startIndex: Int): Int
-
- companion object {
- fun standalone(sql: String): SQLQueryComponent {
- return object : SQLQueryComponent {
- override fun asSql(): String {
- return sql
- }
-
- override fun appendToStatement(stmt: PreparedStatement, startIndex: Int): Int {
- return startIndex
- }
- }
- }
- }
-}
-
-interface BooleanExpression : SQLQueryComponent
-
-data class ORExpression(
- val elements: List<BooleanExpression>
-) : BooleanExpression {
- init {
- require(elements.isNotEmpty())
- }
-
- override fun asSql(): String {
- return (elements + SQLQueryComponent.standalone("FALSE")).joinToString(" OR ", "(", ")") { it.asSql() }
- }
-
- override fun appendToStatement(stmt: PreparedStatement, startIndex: Int): Int {
- var index = startIndex
- for (element in elements) {
- index = element.appendToStatement(stmt, index)
- }
- return index
- }
-}
-
-
-data class ANDExpression(
- val elements: List<BooleanExpression>
-) : BooleanExpression {
- init {
- require(elements.isNotEmpty())
- }
-
- override fun asSql(): String {
- return (elements + SQLQueryComponent.standalone("TRUE")).joinToString(" AND ", "(", ")") { it.asSql() }
- }
-
- override fun appendToStatement(stmt: PreparedStatement, startIndex: Int): Int {
- var index = startIndex
- for (element in elements) {
- index = element.appendToStatement(stmt, index)
- }
- return index
- }
-}
-
-class ClauseBuilder {
- fun <T> column(column: Column<T>): Operand<T> = Operand.ColumnOperand(column)
- fun string(string: String): Operand.StringOperand = Operand.StringOperand(string)
- infix fun Operand<*>.eq(operand: Operand<*>) = Clause.EqualsClause(this, operand)
- infix fun Operand<*>.like(op: Operand.StringOperand) = Clause.LikeClause(this, op)
- infix fun Operand<*>.like(op: String) = Clause.LikeClause(this, string(op))
-}
-
-interface Clause : BooleanExpression {
- companion object {
- operator fun invoke(builder: ClauseBuilder.() -> Clause): Clause {
- return builder(ClauseBuilder())
- }
- }
-
- data class EqualsClause(val left: Operand<*>, val right: Operand<*>) : Clause { // TODO: typecheck this somehow
- override fun asSql(): String {
- return left.asSql() + " = " + right.asSql()
- }
-
- override fun appendToStatement(stmt: PreparedStatement, startIndex: Int): Int {
- var index = startIndex
- index = left.appendToStatement(stmt, index)
- index = right.appendToStatement(stmt, index)
- return index
- }
- }
-
- data class LikeClause<T>(val left: Operand<T>, val right: Operand.StringOperand) : Clause {
- //TODO: check type safety with this one
- override fun asSql(): String {
- return "(" + left.asSql() + " LIKE " + right.asSql() + ")"
- }
-
- override fun appendToStatement(stmt: PreparedStatement, startIndex: Int): Int {
- var index = startIndex
- index = left.appendToStatement(stmt, index)
- index = right.appendToStatement(stmt, index)
- return index
- }
- }
-}
-
-interface Operand<T> : SQLQueryComponent {
- data class ColumnOperand<T>(val column: Column<T>) : Operand<T> {
- override fun asSql(): String {
- return column.qualifiedSqlName
- }
-
- override fun appendToStatement(stmt: PreparedStatement, startIndex: Int): Int {
- return startIndex
- }
- }
-
- data class StringOperand(val value: String) : Operand<String> {
- override fun asSql(): String {
- return "?"
- }
-
- override fun appendToStatement(stmt: PreparedStatement, startIndex: Int): Int {
- stmt.setString(startIndex, value)
- return 1 + startIndex
- }
- }
-}
-
-data class Join(
- val table: Table,
-//TODO: aliased columns val tableAlias: String,
- val filter: Clause,
-) : SQLQueryComponent {
- // JOIN ItemEntry on LogEntry.transactionId = ItemEntry.transactionId
- override fun asSql(): String {
- return "JOIN ${table.sqlName} ON ${filter.asSql()}"
- }
-
- override fun appendToStatement(stmt: PreparedStatement, startIndex: Int): Int {
- return filter.appendToStatement(stmt, startIndex)
- }
-}
-
-fun List<SQLQueryComponent>.concatToFilledPreparedStatement(connection: Connection): PreparedStatement {
- var query = ""
- for (element in this) {
- if (query.isNotEmpty()) {
- query += " "
- }
- query += element.asSql()
- }
- val statement = connection.prepareAndLog(query)
- var index = 1
- for (element in this) {
- val nextIndex = element.appendToStatement(statement, index)
- if (nextIndex < index) error("$element went back in time")
- index = nextIndex
- }
- return statement
-}
-
-class Query(
- val connection: Connection,
- val selectedColumns: MutableList<Column<*>>,
- var table: Table,
- var limit: UInt? = null,
- var skip: UInt? = null,
- val joins: MutableList<Join> = mutableListOf(),
- val conditions: MutableList<BooleanExpression> = mutableListOf(),
-// var order: OrderClause?= null,
-) : Iterable<ResultRow> {
- fun join(table: Table, on: Clause): Query {
- joins.add(Join(table, on))
- return this
- }
-
- fun where(binOp: BooleanExpression): Query {
- conditions.add(binOp)
- return this
- }
-
- fun select(vararg columns: Column<*>): Query {
- selectedColumns.addAll(columns)
- return this
- }
-
- fun skip(skip: UInt): Query {
- require(limit != null)
- this.skip = skip
- return this
- }
-
- fun limit(limit: UInt): Query {
- this.limit = limit
- return this
- }
-
- override fun iterator(): Iterator<ResultRow> {
- val columnSelections = selectedColumns.joinToString { it.qualifiedSqlName }
- val elements = mutableListOf(
- SQLQueryComponent.standalone("SELECT $columnSelections FROM ${table.sqlName}"),
- )
- elements.addAll(joins)
- if (conditions.any()) {
- elements.add(SQLQueryComponent.standalone("WHERE"))
- elements.add(ANDExpression(conditions))
- }
- if (limit != null) {
- elements.add(SQLQueryComponent.standalone("LIMIT $limit"))
- if (skip != null) {
- elements.add(SQLQueryComponent.standalone("OFFSET $skip"))
- }
- }
- val prepared = elements.concatToFilledPreparedStatement(connection)
- val results = prepared.executeQuery()
- return object : Iterator<ResultRow> {
- var hasAdvanced = false
- var hasEnded = false
- override fun hasNext(): Boolean {
- if (hasEnded) return false
- if (hasAdvanced) return true
- if (results.next()) {
- hasAdvanced = true
- return true
- } else {
- results.close() // TODO: somehow enforce closing this
- hasEnded = true
- return false
- }
- }
-
- override fun next(): ResultRow {
- if (!hasNext()) {
- throw NoSuchElementException()
- }
- hasAdvanced = false
- return ResultRow(selectedColumns.withIndex().associate {
- it.value to it.value.type.get(results, it.index + 1)
- })
- }
-
- }
- }
-}
-
-class ResultRow(val columnValues: Map<Column<*>, *>) {
- operator fun <T> get(column: Column<T>): T {
- val value = columnValues[column]
- ?: error("Invalid column ${column.name}. Only ${columnValues.keys.joinToString { it.name }} are available.")
- return value as T
- }
-}
-
-
-
-
diff --git a/src/main/kotlin/moe/nea/ledger/database/Database.kt b/src/main/kotlin/moe/nea/ledger/database/Database.kt
index a77ea30..025888c 100644
--- a/src/main/kotlin/moe/nea/ledger/database/Database.kt
+++ b/src/main/kotlin/moe/nea/ledger/database/Database.kt
@@ -1,6 +1,7 @@
package moe.nea.ledger.database
import moe.nea.ledger.Ledger
+import moe.nea.ledger.database.columns.DBString
import java.sql.Connection
import java.sql.DriverManager
@@ -42,6 +43,8 @@ class Database {
val oldVersion = meta[MetaKey.DATABASE_VERSION]?.toLong() ?: -1
println("Old Database Version: $oldVersion; Current version: $databaseVersion")
+ if (oldVersion > databaseVersion)
+ error("Outdated software. Database is newer than me!")
// TODO: create a backup if there is a db version upgrade happening
DBUpgrade.performUpgradeChain(
connection, oldVersion, databaseVersion,