Added support for import data from file.

core/core.pro

@@ -62,7 +62,8 @@ SOURCES += \
     settings/seasonnamedialog.cpp \
     reporting/report.cpp \
     reporting/reportviewer.cpp \
-    reporting/reportdialog.cpp
+    reporting/reportdialog.cpp \
+    csvimporter.cpp
 
 HEADERS += core.h\
         core_global.h \
@@ -122,7 +123,9 @@ HEADERS += core.h\
     settings/seasonnamedialog.h \
     reporting/report.h \
     reporting/reportviewer.h \
-    reporting/reportdialog.h
+    reporting/reportdialog.h \
+    iimporter.h \
+    csvimporter.h
 
 unix {
     target.path = /usr/lib

core/csvimporter.cpp

@@ -0,0 +1,93 @@
+#include "csvimporter.h"
+#include <QFile>
+#include <QVariant>
+
+CsvImporter::CsvImporter(const QMetaObject *metaObject, QObject *parent)
+    :QObject(parent),
+     IImporter(metaObject)
+{
+    m_parsed = false;
+    m_currentRec = 1;
+    m_error = false;
+}
+
+void CsvImporter::setImportFile(const QString &fileName)
+{
+    m_fileName = fileName;
+}
+
+int CsvImporter::recordCount()
+{
+    if (!m_parsed)
+    {
+        parseFile();
+    }
+
+    return m_lines.count() - 1;
+}
+
+QSharedPointer<QObject> CsvImporter::nextRecord()
+{
+    if (!m_parsed)
+    {
+        parseFile();
+    }
+
+    QObject *entity = m_metaObject->newInstance();
+
+    if (entity == NULL || m_currentRec > recordCount())
+    {
+        ++m_currentRec;
+        return QSharedPointer<QObject>();
+    }
+
+    QStringList props = m_header.split(m_separator);
+    QString line = m_lines[m_currentRec];
+    QStringList values = line.split(m_separator);
+
+    for (int i = 0; i < props.size(); i++) {
+        QString property = props[i];
+        QString value = values[i];
+        if (!entity->setProperty(property.toStdString().c_str(), QVariant(value)))
+        {
+            m_error = true;
+            emit noSuchProperty(property);
+
+            ++m_currentRec;
+            return QSharedPointer<QObject>();
+        }
+    }
+
+    ++m_currentRec;
+
+    return QSharedPointer<QObject>(entity);
+}
+
+bool CsvImporter::isError()
+{
+    return m_error;
+}
+
+void CsvImporter::parseFile()
+{
+    QFile file(m_fileName);
+
+    if (!file.open(QFile::ReadOnly | QFile::Text))
+    {
+        m_error = true;
+        emit parseError();
+        return;
+    }
+
+    QByteArray data = file.readAll();
+    QString strData(data);
+
+    m_lines = strData.split("\n");
+    m_header = m_lines[0];
+    m_parsed = true;
+}
+
+void CsvImporter::setSeparator(const QString &separator)
+{
+    m_separator = separator;
+}

core/csvimporter.h

@@ -0,0 +1,40 @@
+#ifndef CSVIMPORTER_H
+#define CSVIMPORTER_H
+
+#include "iimporter.h"
+#include <QStringList>
+#include <QObject>
+
+class CsvImporter : public QObject, public IImporter
+{
+    Q_OBJECT
+
+public:
+    explicit CsvImporter(const QMetaObject *metaObject, QObject *parent = NULL);
+
+    // IImporter interface
+public:
+    void setImportFile(const QString &fileName);
+    int recordCount();
+    QSharedPointer<QObject> nextRecord();
+    bool isError();
+
+    void setSeparator(const QString &separator);
+
+signals:
+    void parseError();
+    void noSuchProperty(QString propName);
+
+private:
+    void parseFile();
+
+    QString m_header;
+    QString m_separator;
+    QString m_fileName;
+    QStringList m_lines;
+    bool m_parsed;
+    bool m_error;
+    int m_currentRec;
+};
+
+#endif // CSVIMPORTER_H

core/iimporter.h

@@ -0,0 +1,22 @@
+#ifndef IIMPORTER_H
+#define IIMPORTER_H
+
+#include <QMetaObject>
+#include <QObject>
+#include <QSharedPointer>
+
+class IImporter
+{
+public:
+    explicit IImporter(const QMetaObject *metaObject) { m_metaObject = metaObject; }
+
+    virtual void setImportFile(const QString &fileName) = 0;
+    virtual int recordCount() = 0;
+    virtual QSharedPointer<QObject> nextRecord() = 0;
+    virtual bool isError() = 0;
+
+protected:
+    const QMetaObject *m_metaObject;
+};
+
+#endif // IIMPORTER_H

core/service.h

@@ -14,6 +14,7 @@
 #include "context.h"
 #include "iservice.h"
 #include "permissionevaluator.h"
+#include "iimporter.h"
 
 #include "transaction.h"
 
@@ -178,6 +179,33 @@ public:
         }
     }
 
+    bool importData(IImporter *importer) {
+        int count = importer->recordCount();
+
+        if (importer->isError()) {
+            return false;
+        }
+
+        for (int i = 0; i < count - 1; i++) {
+            QSharedPointer<QObject> qentity = importer->nextRecord();
+
+            if (importer->isError() || qentity.isNull()) {
+                return false;
+            }
+
+            QSharedPointer<T> entity = qentity.dynamicCast<T>();
+            if (!entity.isNull()) {
+                this->save(entity);
+            }
+            else
+            {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
 protected:
     bool checkPermission(const QString &permission) {
         if (!m_pluginId.isEmpty()) {