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#include "uniquevalidator.h"
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#include "src/entitymanager.h"
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using namespace CuteEntityManager;
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UniqueValidator::UniqueValidator() : Validator() {
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}
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QList<ErrorMsg> UniqueValidator::validate(QVariant value,
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QList<Param> params) const {
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QList<ErrorMsg> msgs = QList<ErrorMsg>();
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if (!params.isEmpty()) {
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QString targetAttribute = "";
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QString targetClass = "";
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QString entityManagerID = "";
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for (int i = 0; i < params.size(); ++i) {
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if (params.at(i).getName() == "targetAttribute") {
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targetAttribute = params.at(i).getValue().toString();
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} else if (params.at(i).getName() == "entityManagerID") {
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entityManagerID = params.at(i).getValue().toString();
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} else if (params.at(i).getName() == "targetClass") {
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targetClass = params.at(i).getValue().toString();
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}
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}
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EntityManager *em = nullptr;
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if (entityManagerID.isEmpty()) {
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em = EntityManager::getDefaultInstance();
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} else {
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em = EntityManager::getInstance(entityManagerID);
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}
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if (!em) {
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msgs.append(ErrorMsg("", "No entitymanager."));
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} else {
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Query q = Query();
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auto e = EntityInstanceFactory::createInstance(
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targetClass.toLatin1().constData());
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q.appendFrom(e->getTablename());
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delete e;
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e = nullptr;
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QHash<QString, QVariant> params = QHash<QString, QVariant>();
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params.insert(targetAttribute, value);
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q.appendWhere(Expression(targetAttribute, params));
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if (em->count(q) > 0) {
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msgs.append(ErrorMsg("",
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"<property> \"" + value.toString() + "\" has already been taken."));
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}
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}
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} else {
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msgs.append(ErrorMsg("", "UniqueValidator has not enough parameters."));
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}
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return msgs;
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}
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ErrorMsg UniqueValidator::validateParam(QVariant value, Param param) const {
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Q_UNUSED(value)
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Q_UNUSED(param)
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return ErrorMsg();
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}
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