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package com.redstoner.misc.mysql.elements;
import com.redstoner.misc.mysql.MysqlQueryHandler;
import java.sql.DatabaseMetaData;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
public class MysqlTable {
private MysqlDatabase database;
private String name;
public MysqlTable(MysqlDatabase database, String name) {
this.database = database;
this.name = name;
}
public String getName() {
return this.name;
}
public boolean insert(String... values) {
MysqlField[] description = describe();
if (values.length > 0 && values.length == description.length) {
String val = "(\"" + String.join("\",\"", values) + "\")";
return MysqlQueryHandler.queryNoResult(
database.getConnection(),
"INSERT INTO `" + name + "` VALUES " + val + ";"
);
} else {
return false;
}
}
public MysqlField[] describe() {
try {
List<MysqlField> description = new ArrayList<>();
DatabaseMetaData metadata = database.getConnection().getMetaData();
ResultSet queryResults = metadata.getColumns(null, null, name, null);
while (queryResults.next()) {
description.add(new MysqlField(
queryResults.getString(4),
queryResults.getString(6).split(" ")[0] + "(" + queryResults.getString(7) + ")",
queryResults.getBoolean(11)
));
}
return description.toArray(new MysqlField[0]);
} catch (SQLException e) {
e.printStackTrace();
return null;
}
}
public Object[] get(String fieldName, MysqlConstraint... constraints) {
ResultSet results = MysqlQueryHandler.queryResult(
database.getConnection(),
"SELECT " + fieldName + " FROM `" + name + "`" + getConstraints(constraints) + ";"
);
List<Object> resObj = new ArrayList<>();
try {
while (results.next()) {
resObj.add(results.getObject(1));
}
} catch (SQLException e) {
e.printStackTrace();
return new Object[0];
}
return resObj.toArray(new Object[0]);
}
private String getConstraints(MysqlConstraint... constraints) {
String cons = "";
if (constraints.length > 0) {
cons += " WHERE ";
for (int i = 0; i < constraints.length; i++) {
MysqlConstraint constraint = constraints[i];
cons += constraint.getFieldName() + constraint.getOperator().toString() + "\"" + constraint.getValue()
+ "\"";
if (i < constraints.length - 1) {
cons += " AND ";
}
}
}
return cons;
}
public Object[] get(String statement) {
ResultSet results = MysqlQueryHandler.queryResult(database.getConnection(), statement);
List<Object> resObj = new ArrayList<>();
try {
while (results.next()) {
resObj.add(results.getObject(1));
}
} catch (SQLException e) {
e.printStackTrace();
return new Object[0];
}
return resObj.toArray(new Object[0]);
}
public boolean delete(MysqlConstraint... constraints) {
return MysqlQueryHandler.queryNoResult(
database.getConnection(),
"DELETE FROM `" + name + "`" + getConstraints(constraints) + ";"
);
}
public boolean drop() {
return MysqlQueryHandler.queryNoResult(database.getConnection(), "DROP TABLE `" + name + "`;");
}
}
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