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8 changed files with 252 additions and 305 deletions

16
.gitignore vendored
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@ -7,19 +7,3 @@
out/
target
compile/
# eclipse specific git ignore
*.pydevproject
.project
.metadata
bin/**
tmp/**
tmp/**/*
*.tmp
*.bak
*.swp
*~.nib
local.properties
.classpath
.settings/
.loadpath

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@ -30,10 +30,6 @@
<id>sk89q</id>
<url>https://maven.sk89q.com/repo</url>
</repository>
<repository>
<id>skript</id>
<url>https://repo.skriptlang.org/releases</url>
</repository>
</repositories>
<build>

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@ -1,94 +1,61 @@
package com.btk5h.skriptdb;
import ch.njol.skript.Skript;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.VariableString;
import java.lang.reflect.Field;
import java.util.Arrays;
import java.util.Optional;
import org.bukkit.event.Event;
import ch.njol.skript.ScriptLoader;
import ch.njol.skript.Skript;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.VariableString;
import ch.njol.skript.lang.parser.ParserInstance;
public class SkriptUtil {
private static final Field STRING;
private static final Field EXPR;
private static final Field STRING;
private static final Field EXPR;
static {
STRING = tryGetOldStringField()
.or(() -> tryGetNewStringField())
.orElseGet(() -> {
Skript.error("Skript's 'string' field could not be resolved.");
return null;
});
Field f = null;
try {
Optional<Class<?>> expressionInfo = Arrays.stream(VariableString.class.getDeclaredClasses())
.filter(cls -> cls.getSimpleName().equals("ExpressionInfo"))
.findFirst();
if (expressionInfo.isPresent()) {
Class<?> expressionInfoClass = expressionInfo.get();
f = expressionInfoClass.getDeclaredField("expr");
f.setAccessible(true);
} else {
Skript.error("Skript's 'ExpressionInfo' class could not be resolved.");
}
} catch (NoSuchFieldException e) {
e.printStackTrace();
Skript.error("Skript's 'expr' field could not be resolved.");
}
EXPR = f;
static {
Field _FIELD = null;
try {
_FIELD = VariableString.class.getDeclaredField("string");
_FIELD.setAccessible(true);
} catch (NoSuchFieldException e) {
Skript.error("Skript's 'string' field could not be resolved.");
e.printStackTrace();
}
STRING = _FIELD;
public static Object[] getTemplateString(VariableString vs) {
try {
return (Object[]) STRING.get(vs);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
try {
Optional<Class<?>> expressionInfo = Arrays.stream(VariableString.class.getDeclaredClasses())
.filter(cls -> cls.getSimpleName().equals("ExpressionInfo"))
.findFirst();
if (expressionInfo.isPresent()) {
Class<?> expressionInfoClass = expressionInfo.get();
_FIELD = expressionInfoClass.getDeclaredField("expr");
_FIELD.setAccessible(true);
} else {
Skript.error("Skript's 'ExpressionInfo' class could not be resolved.");
}
} catch (NoSuchFieldException e) {
e.printStackTrace();
Skript.error("Skript's 'expr' field could not be resolved.");
}
EXPR = _FIELD;
}
public static Expression<?> getExpressionFromInfo(Object o) {
try {
return (Expression<?>) EXPR.get(o);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
public static Object[] getTemplateString(VariableString vs) {
try {
return (Object[]) STRING.get(vs);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
@SuppressWarnings("deprecation")
public static boolean isCurrentEvent(Class<? extends Event> event) {
try {
Class.forName("ch.njol.skript.lang.parser.ParserInstance");
return ParserInstance.get().isCurrentEvent(event);
} catch (ClassNotFoundException e) {
return ScriptLoader.isCurrentEvent(event);
}
}
private static Optional<Field> tryGetOldStringField() {
try {
Field f = VariableString.class.getDeclaredField("string");
f.setAccessible(true);
return Optional.of(f);
} catch (NoSuchFieldException e) {
return Optional.empty();
}
}
private static Optional<Field> tryGetNewStringField() {
try {
Field f = VariableString.class.getDeclaredField("strings");
f.setAccessible(true);
return Optional.of(f);
} catch (NoSuchFieldException e) {
return Optional.empty();
}
public static Expression<?> getExpressionFromInfo(Object o) {
try {
return (Expression<?>) EXPR.get(o);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
}

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@ -4,26 +4,32 @@ import org.bukkit.event.Event;
import org.bukkit.event.HandlerList;
public class SQLQueryCompleteEvent extends Event {
private static final HandlerList HANDLERS = new HandlerList();
private final static HandlerList HANDLERS = new HandlerList();
private final String argument;
public SQLQueryCompleteEvent(String argument) {
super(true);
this.argument = argument;
// this.variables = variables;
}
public static HandlerList getHandlerList() {
return HANDLERS;
}
@Override
public String getEventName() {
return super.getEventName();
}
@Override
public HandlerList getHandlers() {
return getHandlerList();
return HANDLERS;
}
public String getQuery() {
return argument;
}
public static HandlerList getHandlerList() {
return HANDLERS;
}
// public String getVariables() {return;}
}

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@ -25,7 +25,6 @@ import java.util.*;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.regex.Pattern;
/**
* Executes a statement on a database and optionally stores the result in a variable. Expressions
@ -46,85 +45,107 @@ import java.util.regex.Pattern;
*/
public class EffExecuteStatement extends Effect {
private static final ExecutorService threadPool = Executors.newFixedThreadPool(SkriptDB.getInstance().getConfig().getInt("thread-pool-size", 10));
private static final Pattern ARGUMENT_PLACEHOLDER = Pattern.compile("(?<!\\\\)\\?");
static String lastError;
static {
Skript.registerEffect(EffExecuteStatement.class,
"[quickly:quickly] execute %string% (in|on) %datasource% " +
"[with arg[ument][s] %-objects%] [and store [[the] (output|result)[s]] (to|in) [the] [var[iable]] %-objects%]");
"execute %string% (in|on) %datasource% " +
"[and store [[the] (output|result)[s]] (to|in) [the] [var[iable]] %-objects%]", "quickly execute %string% (in|on) %datasource% " +
"[and store [[the] (output|result)[s]] (to|in) [the] [var[iable]] %-objects%]");
}
private Expression<String> query;
private Expression<HikariDataSource> dataSource;
private Expression<Object> queryArguments;
private VariableString resultVariableName;
private VariableString var;
private boolean isLocal;
private boolean isList;
private boolean quickly;
private boolean isSync = false;
private void continueScriptExecution(Event e, Object populatedVariables) {
lastError = null;
if (populatedVariables instanceof String) {
lastError = (String) populatedVariables;
} else {
if (getNext() != null) {
((Map<String, Object>) populatedVariables).forEach((name, value) -> setVariable(e, name, value));
}
}
TriggerItem.walk(getNext(), e);
}
@Override
protected void execute(Event e) {
DataSource ds = dataSource.getSingle(e);
Pair<String, List<Object>> query = parseQuery(e);
String baseVariable = var != null ? var.toString(e).toLowerCase(Locale.ENGLISH) : null;
//if data source isn't set
if (ds == null) {
return;
}
Pair<String, List<Object>> parsedQuery = parseQuery(e);
String baseVariable = resultVariableName != null ? resultVariableName.toString(e).toLowerCase(Locale.ENGLISH) : null;
if (ds == null) return;
Object locals = Variables.removeLocals(e);
//execute SQL statement
if (Bukkit.isPrimaryThread()) {
CompletableFuture.supplyAsync(() -> executeStatement(ds, baseVariable, parsedQuery), threadPool)
.whenComplete((resources, err) -> {
//handle last error syntax data
resetLastSQLError();
if (err instanceof SkriptDBQueryException) {
setLastSQLError(err.getMessage());
}
//if local variables are present
//bring back local variables
//populate SQL data into variables
if (!quickly) {
Bukkit.getScheduler().runTask(SkriptDB.getInstance(),
() -> postExecution(e, locals, resources));
} else {
postExecution(e, locals, resources);
}
});
CompletableFuture<Object> sql = CompletableFuture.supplyAsync(() -> executeStatement(ds, baseVariable, query), threadPool);
sql.whenComplete((res, err) -> {
if (err != null) {
err.printStackTrace();
}
//handle last error syntax data
lastError = null;
if (res instanceof String) {
lastError = (String) res;
}
//if local variables are present
//bring back local variables
//populate SQL data into variables
if (!quickly) {
Bukkit.getScheduler().runTask(SkriptDB.getInstance(), () -> {
if (locals != null && getNext() != null) {
Variables.setLocalVariables(e, locals);
}
if (!(res instanceof String)) {
((Map<String, Object>) res).forEach((name, value) -> setVariable(e, name, value));
}
TriggerItem.walk(getNext(), e);
//the line below is required to prevent memory leaks
Variables.removeLocals(e);
});
} else {
if (locals != null && getNext() != null) {
Variables.setLocalVariables(e, locals);
}
if (!(res instanceof String)) {
((Map<String, Object>) res).forEach((name, value) -> setVariable(e, name, value));
}
TriggerItem.walk(getNext(), e);
//the line below is required to prevent memory leaks
Variables.removeLocals(e);
}
});
// sync executed SQL query, same as above, just sync
} else {
isSync = true;
Map<String, Object> resources = null;
try {
resources = executeStatement(ds, baseVariable, parsedQuery);
resetLastSQLError();
} catch (SkriptDBQueryException err) {
//handle last error syntax data
setLastSQLError(err.getMessage());
}
Object resources = executeStatement(ds, baseVariable, query);
//handle last error syntax data
lastError = null;
if (resources instanceof String) {
lastError = (String) resources;
}
//if local variables are present
//bring back local variables
//populate SQL data into variables
postExecution(e, locals, resources);
if (locals != null && getNext() != null) {
Variables.setLocalVariables(e, locals);
}
if (!(resources instanceof String)) {
((Map<String, Object>) resources).forEach((name, value) -> setVariable(e, name, value));
}
TriggerItem.walk(getNext(), e);
Variables.removeLocals(e);
}
}
private void postExecution(Event e, Object locals, Map<String, Object> resources) {
if (locals != null && getNext() != null) {
Variables.setLocalVariables(e, locals);
}
if (resources != null) {
resources.forEach((name, value) -> setVariable(e, name, value));
}
TriggerItem.walk(getNext(), e);
//the line below is required to prevent memory leaks
Variables.removeLocals(e);
}
@Override
protected TriggerItem walk(Event e) {
debug(e, true);
@ -136,144 +157,142 @@ public class EffExecuteStatement extends Effect {
}
private Pair<String, List<Object>> parseQuery(Event e) {
if (queryArguments != null) {
Object[] args = queryArguments.getArray(e);
String queryString = query.getSingle(e);
int queryArgCount = (int) ARGUMENT_PLACEHOLDER.matcher(queryString).results().count();
if (queryArgCount != args.length) {
Skript.warning("Your query has %d question marks, but you provided %d arguments.");
args = Arrays.copyOf(args, queryArgCount);
}
return new Pair<>(query.getSingle(e), List.of(args));
} else if (query instanceof VariableString && !((VariableString) query).isSimple()) {
return parseVariableQuery(e, (VariableString) query);
if (!(query instanceof VariableString)) {
return new Pair<>(query.getSingle(e), null);
}
VariableString q = (VariableString) query;
if (q.isSimple()) {
return new Pair<>(q.toString(e), null);
}
return new Pair<>(query.getSingle(e), null);
}
private Pair<String, List<Object>> parseVariableQuery(Event e, VariableString varQuery) {
StringBuilder sb = new StringBuilder();
List<Object> parameters = new LinkedList<>();
Object[] objects = SkriptUtil.getTemplateString(varQuery);
List<Object> parameters = new ArrayList<>();
Object[] objects = SkriptUtil.getTemplateString(q);
for (int i = 0; i < objects.length; i++) {
if (objects[i] instanceof String) {
sb.append(objects[i]);
Object o = objects[i];
if (o instanceof String) {
sb.append(o);
} else {
Expression<?> expr = objects[i] instanceof Expression ? (Expression<?>) objects[i] : SkriptUtil.getExpressionFromInfo(objects[i]);
boolean standaloneString = isStandaloneString(objects, i);
Expression<?> expr;
if (o instanceof Expression)
expr = (Expression<?>) o;
else
expr = SkriptUtil.getExpressionFromInfo(o);
String before = getString(objects, i - 1);
String after = getString(objects, i + 1);
boolean standaloneString = false;
if (before != null && after != null) {
if (before.endsWith("'") && after.endsWith("'")) {
standaloneString = true;
}
}
Object expressionValue = expr.getSingle(e);
Pair<String, Object> toAppend = parseExpressionQuery(expr, expressionValue, standaloneString);
sb.append(toAppend.getFirst());
if (toAppend.getSecond() != null) {
parameters.add(toAppend.getSecond());
if (expr instanceof ExprUnsafe) {
sb.append(expressionValue);
if (standaloneString && expressionValue instanceof String) {
String rawExpression = ((ExprUnsafe) expr).getRawExpression();
Skript.warning(
String.format("Unsafe may have been used unnecessarily. Try replacing 'unsafe %1$s' with %1$s",
rawExpression));
}
} else {
parameters.add(expressionValue);
sb.append('?');
if (standaloneString) {
Skript.warning("Do not surround expressions with quotes!");
}
}
}
}
return new Pair<>(sb.toString(), parameters);
}
private Pair<String, Object> parseExpressionQuery(Expression<?> expr, Object expressionValue, boolean standaloneString) {
if (expr instanceof ExprUnsafe) {
if (standaloneString && expressionValue instanceof String) {
Skript.warning(
String.format("Unsafe may have been used unnecessarily. Try replacing 'unsafe %1$s' with %1$s",
((ExprUnsafe) expr).getRawExpression()));
}
return new Pair<>((String) expressionValue, null);
} else {
if (standaloneString) {
Skript.warning("Do not surround expressions with quotes!");
}
return new Pair<>("?", expressionValue);
}
}
private Map<String, Object> executeStatement(DataSource ds, String baseVariable, Pair<String, List<Object>> query) throws SkriptDBQueryException {
private Object executeStatement(DataSource ds, String baseVariable, Pair<String, List<Object>> query) {
if (ds == null) {
throw new SkriptDBQueryException("Data source is not set");
return "Data source is not set";
}
try (Connection conn = ds.getConnection()) {
try (PreparedStatement stmt = createStatement(conn, query)) {
boolean hasResultSet = stmt.execute();
Map<String, Object> variableList = new HashMap<>();
try (Connection conn = ds.getConnection();
PreparedStatement stmt = createStatement(conn, query)) {
if (baseVariable != null) {
return processBaseVariable(baseVariable, stmt, hasResultSet);
boolean hasResultSet = stmt.execute();
if (baseVariable != null) {
if (isList) {
baseVariable = baseVariable.substring(0, baseVariable.length() - 1);
}
if (hasResultSet) {
CachedRowSet crs = SkriptDB.getRowSetFactory().createCachedRowSet();
crs.populate(stmt.getResultSet());
if (isList) {
ResultSetMetaData meta = crs.getMetaData();
int columnCount = meta.getColumnCount();
for (int i = 1; i <= columnCount; i++) {
String label = meta.getColumnLabel(i);
variableList.put(baseVariable + label, label);
}
int rowNumber = 1;
try {
while (crs.next()) {
for (int i = 1; i <= columnCount; i++) {
variableList.put(baseVariable + meta.getColumnLabel(i).toLowerCase(Locale.ENGLISH)
+ Variable.SEPARATOR + rowNumber, crs.getObject(i));
}
rowNumber++;
}
} catch (SQLException ex) {
return ex.getMessage();
}
} else {
crs.last();
variableList.put(baseVariable, crs.getRow());
}
} else if (!isList) {
//if no results are returned and the specified variable isn't a list variable, put the affected rows count in the variable
variableList.put(baseVariable, stmt.getUpdateCount());
}
return Map.of();
}
} catch (SQLException ex) {
throw new SkriptDBQueryException(ex.getMessage());
}
}
private Map<String, Object> processBaseVariable(String baseVariable, PreparedStatement stmt, boolean hasResultSet) throws SQLException {
Map<String, Object> variableList = new HashMap<>();
if (isList) {
baseVariable = baseVariable.substring(0, baseVariable.length() - 1);
}
if (hasResultSet) {
CachedRowSet crs = SkriptDB.getRowSetFactory().createCachedRowSet();
crs.populate(stmt.getResultSet());
if (isList) {
return fetchQueryResultSet(crs, baseVariable);
} else {
crs.last();
variableList.put(baseVariable, crs.getRow());
}
} else if (!isList) {
//if no results are returned and the specified variable isn't a list variable, put the affected rows count in the variable
return Map.of(baseVariable, stmt.getUpdateCount());
}
return Map.of();
}
private Map<String, Object> fetchQueryResultSet(CachedRowSet crs, String baseVariable) throws SQLException {
Map<String, Object> variableList = new HashMap<>();
ResultSetMetaData meta = crs.getMetaData();
int columnCount = meta.getColumnCount();
for (int i = 1; i <= columnCount; i++) {
String label = meta.getColumnLabel(i);
variableList.put(baseVariable + label, label);
}
int rowNumber = 1;
while (crs.next()) {
for (int i = 1; i <= columnCount; i++) {
variableList.put(baseVariable + meta.getColumnLabel(i).toLowerCase(Locale.ENGLISH)
+ Variable.SEPARATOR + rowNumber, crs.getObject(i));
}
rowNumber++;
return ex.getMessage();
}
return variableList;
}
private PreparedStatement createStatement(Connection conn, Pair<String, List<Object>> query) throws SQLException {
PreparedStatement stmt = conn.prepareStatement(query.getFirst());
if (query.getSecond() != null) {
Iterator<Object> iter = query.getSecond().iterator();
for (int i = 1; iter.hasNext(); i++) {
stmt.setObject(i, iter.next());
List<Object> parameters = query.getSecond();
if (parameters != null) {
for (int i = 0; i < parameters.size(); i++) {
stmt.setObject(i + 1, parameters.get(i));
}
}
return stmt;
}
private boolean isStandaloneString(Object[] objects, int index) {
String before = getString(objects, index - 1);
String after = getString(objects, index + 1);
return before != null && before.endsWith("'") && after != null && after.endsWith("'");
}
private String getString(Object[] objects, int index) {
if (index >= 0 && index < objects.length && objects[index] instanceof String) {
return (String) objects[index];
if (index < 0 || index >= objects.length) {
return null;
}
Object object = objects[index];
if (object instanceof String) {
return (String) object;
}
return null;
}
@ -281,7 +300,7 @@ public class EffExecuteStatement extends Effect {
//fix mediumblob and similar column types, so they return a String correctly
if (obj != null) {
if (obj instanceof byte[]) {
if (obj.getClass().getName().equals("[B")) {
obj = new String((byte[]) obj);
//in some servers instead of being byte array, it appears as SerialBlob (depends on mc version, 1.12.2 is bvte array, 1.16.5 SerialBlob)
@ -296,14 +315,6 @@ public class EffExecuteStatement extends Effect {
Variables.setVariable(name.toLowerCase(Locale.ENGLISH), obj, e, isLocal);
}
private static void resetLastSQLError() {
lastError = null;
}
private static void setLastSQLError(String error) {
lastError = error;
}
@Override
public String toString(Event e, boolean debug) {
return "execute " + query.toString(e, debug) + " in " + dataSource.toString(e, debug);
@ -311,7 +322,8 @@ public class EffExecuteStatement extends Effect {
@SuppressWarnings("unchecked")
@Override
public boolean init(Expression<?>[] exprs, int matchedPattern, Kleenean isDelayed, SkriptParser.ParseResult parseResult) {
public boolean init(Expression<?>[] exprs, int matchedPattern, Kleenean isDelayed,
SkriptParser.ParseResult parseResult) {
Expression<String> statementExpr = (Expression<String>) exprs[0];
if (statementExpr instanceof VariableString || statementExpr instanceof ExprUnsafe) {
query = statementExpr;
@ -322,34 +334,17 @@ public class EffExecuteStatement extends Effect {
return false;
}
dataSource = (Expression<HikariDataSource>) exprs[1];
if (exprs[2] != null) {
if (query instanceof VariableString && !((VariableString) query).isSimple()) {
Skript.warning("Your query string contains expresions, but you've also provided query arguments. Consider using `unsafe` keyword before your query.");
}
queryArguments = (Expression<Object>) exprs[2];
}
Expression<?> resultHolder = exprs[3];
quickly = parseResult.hasTag("quickly");
if (resultHolder instanceof Variable) {
Variable<?> varExpr = (Variable<?>) resultHolder;
resultVariableName = varExpr.getName();
Expression<?> expr = exprs[2];
quickly = matchedPattern == 1;
if (expr instanceof Variable) {
Variable<?> varExpr = (Variable<?>) expr;
var = varExpr.getName();
isLocal = varExpr.isLocal();
isList = varExpr.isList();
} else if (resultHolder != null) {
Skript.error(resultHolder + " is not a variable");
} else if (expr != null) {
Skript.error(expr + " is not a variable");
return false;
}
return true;
}
public static class SkriptDBQueryException extends RuntimeException {
private static final long serialVersionUID = -1869895286406538884L;
public SkriptDBQueryException(String message) {
super(message);
}
}
}

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@ -32,9 +32,8 @@ public class ExprDataSource extends SimpleExpression<HikariDataSource> {
static {
Skript.registerExpression(ExprDataSource.class, HikariDataSource.class,
ExpressionType.COMBINED, "[the] data(base|[ ]source) [(of|at)] %string% "
+ "[with [a] [max[imum]] [connection] life[ ]time of %-timespan%] "
+ "[[(using|with)] [a] driver %-string%]");
ExpressionType.COMBINED, "[the] data(base|[ ]source) [(of|at)] %string% " +
"[with [a] [max[imum]] [connection] life[ ]time of %-timespan%] " + "[[(using|with)] [a] driver %-string%]");
}
private Expression<String> url;
@ -101,7 +100,8 @@ public class ExprDataSource extends SimpleExpression<HikariDataSource> {
@SuppressWarnings("unchecked")
@Override
public boolean init(Expression<?>[] exprs, int matchedPattern, Kleenean isDelayed, SkriptParser.ParseResult parseResult) {
public boolean init(Expression<?>[] exprs, int matchedPattern, Kleenean isDelayed,
SkriptParser.ParseResult parseResult) {
url = (Expression<String>) exprs[0];
maxLifetime = (Expression<Timespan>) exprs[1];
driver = (Expression<String>) exprs[2];

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@ -1,10 +1,6 @@
package com.btk5h.skriptdb.skript;
import org.bukkit.event.Event;
import com.btk5h.skriptdb.SkriptUtil;
import com.btk5h.skriptdb.events.SQLQueryCompleteEvent;
import ch.njol.skript.ScriptLoader;
import ch.njol.skript.Skript;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.ExpressionType;
@ -12,6 +8,8 @@ import ch.njol.skript.lang.SkriptParser;
import ch.njol.skript.lang.util.SimpleExpression;
import ch.njol.skript.log.ErrorQuality;
import ch.njol.util.Kleenean;
import com.btk5h.skriptdb.events.SQLQueryCompleteEvent;
import org.bukkit.event.Event;
/**
* Stores the error from the last executed statement, if there was one.
@ -53,7 +51,7 @@ public class ExprSQLQuery extends SimpleExpression<String> {
@Override
public boolean init(final Expression<?>[] expressions, final int matchedPattern, final Kleenean isDelayed, final SkriptParser.ParseResult parseResult) {
if (!SkriptUtil.isCurrentEvent(SQLQueryCompleteEvent.class)) {
if (!ScriptLoader.isCurrentEvent(SQLQueryCompleteEvent.class)) {
Skript.error("Cannot use 'sql query' outside of a complete of sql query event", ErrorQuality.SEMANTIC_ERROR);
return false;
}

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@ -53,7 +53,8 @@ public class ExprUnsafe extends SimpleExpression<String> {
@SuppressWarnings("unchecked")
@Override
public boolean init(Expression<?>[] exprs, int matchedPattern, Kleenean isDelayed, SkriptParser.ParseResult parseResult) {
public boolean init(Expression<?>[] exprs, int matchedPattern, Kleenean isDelayed,
SkriptParser.ParseResult parseResult) {
stringExpression = (Expression<String>) exprs[0];
rawExpression = parseResult.expr.substring("unsafe".length()).trim();
return true;