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#include "populatescript.h"
#include "common/unused.h"
#include "services/populatemanager.h"
#include "services/pluginmanager.h"
#include "services/notifymanager.h"
class PopulateFunctionInfoImpl : public ScriptingPlugin::FunctionInfo
{
public:
PopulateFunctionInfoImpl(bool rowCount)
{
args = QStringList({"dbName", "tableName"});
if (rowCount)
args << "rowCount";
}
QString getName() const {return QString();}
QStringList getArguments() const {return args;}
bool getUndefinedArgs() const {return false;}
private:
QStringList args;
};
PopulateFunctionInfoImpl populateInitFunctionInfo(false);
PopulateFunctionInfoImpl populateNextFunctionInfo(true);
PopulateScript::PopulateScript()
{
}
QString PopulateScript::getTitle() const
{
return tr("Script");
}
PopulateEngine* PopulateScript::createEngine()
{
return new PopulateScriptEngine();
}
bool PopulateScriptEngine::beforePopulating(Db* db, const QString& table)
{
this->db = db;
this->table = table;
evalArgs = {db->getName(), table};
scriptingPlugin = nullptr;
for (ScriptingPlugin* plugin : PLUGINS->getLoadedPlugins<ScriptingPlugin>())
{
if (plugin->getLanguage() == cfg.PopulateScript.Language.get())
{
scriptingPlugin = plugin;
break;
}
}
if (!scriptingPlugin)
{
notifyError(QObject::tr("Could not find plugin to support scripting language: %1").arg(cfg.PopulateScript.Language.get()));
return false;
}
dbAwarePlugin = dynamic_cast<DbAwareScriptingPlugin*>(scriptingPlugin);
context = scriptingPlugin->createContext();
QString initCode = cfg.PopulateScript.InitCode.get();
if (!initCode.trimmed().isEmpty())
{
if (dbAwarePlugin)
dbAwarePlugin->evaluate(context, initCode, populateInitFunctionInfo, evalArgs, db);
else
scriptingPlugin->evaluate(context, initCode, populateInitFunctionInfo, evalArgs);
if (scriptingPlugin->hasError(context))
{
notifyError(QObject::tr("Error while executing populating initial code: %1").arg(scriptingPlugin->getErrorMessage(context)));
releaseContext();
return false;
}
}
rowCnt = 1;
evalArgs << rowCnt;
return true;
}
QVariant PopulateScriptEngine::nextValue(bool& nextValueError)
{
QVariant result;
if (dbAwarePlugin)
result = dbAwarePlugin->evaluate(context, cfg.PopulateScript.Code.get(), populateNextFunctionInfo, evalArgs, db);
else
result = scriptingPlugin->evaluate(context, cfg.PopulateScript.Code.get(), populateNextFunctionInfo, evalArgs);
if (scriptingPlugin->hasError(context))
{
notifyError(QObject::tr("Error while executing populating code: %1").arg(scriptingPlugin->getErrorMessage(context)));
releaseContext();
nextValueError = true;
return QVariant();
}
evalArgs[2] = ++rowCnt;
return result;
}
void PopulateScriptEngine::afterPopulating()
{
releaseContext();
}
CfgMain* PopulateScriptEngine::getConfig()
{
return &cfg;
}
QString PopulateScriptEngine::getPopulateConfigFormName() const
{
return QStringLiteral("PopulateScriptConfig");
}
bool PopulateScriptEngine::validateOptions()
{
bool langValid = !cfg.PopulateScript.Language.get().isEmpty();
bool codeValid = !cfg.PopulateScript.Code.get().trimmed().isEmpty();
QString lang = cfg.PopulateScript.Language.get();
POPULATE_MANAGER->handleValidationFromPlugin(langValid, cfg.PopulateScript.Language, QObject::tr("Select implementation language."));
POPULATE_MANAGER->handleValidationFromPlugin(codeValid, cfg.PopulateScript.Code, QObject::tr("Implementation code cannot be empty."));
POPULATE_MANAGER->propertySetFromPlugin(cfg.PopulateScript.InitCode, PluginServiceBase::LANG_PROPERTY_NAME, lang);
POPULATE_MANAGER->propertySetFromPlugin(cfg.PopulateScript.Code, PluginServiceBase::LANG_PROPERTY_NAME, lang);
return langValid && codeValid;
}
void PopulateScriptEngine::releaseContext()
{
scriptingPlugin->releaseContext(context);
context = nullptr;
}
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