Rests model was added

CMakeLists.txt

@@ -20,6 +20,7 @@ set(PROJECT_SOURCES
         qml/qml.qrc
         models/basemodel.h models/basemodel.cpp
         models/usersmodel.h models/usersmodel.cpp
+        models/restsmodel.h models/restsmodel.cpp
         viewmodels/usersviewmodel.h viewmodels/usersviewmodel.cpp
         viewmodels/storesviewmodel.h viewmodels/storesviewmodel.cpp
         viewmodels/productsviewmodel.h viewmodels/productsviewmodel.cpp

main.cpp

@@ -6,6 +6,7 @@
 #include <QQmlContext>
 
 #include "models/usersmodel.h"
+#include "models/restsmodel.h"
 
 #include "viewmodels/usersviewmodel.h"
 #include "viewmodels/productsviewmodel.h"
@@ -45,6 +46,7 @@ int main(int argc, char *argv[])
     engine.addImportPath("qrc:/");
 
     ModelsRegister::registerModel(new UsersModel());
+    ModelsRegister::registerModel(new RestsModel());
 
     engine.rootContext()->setContextProperty("beerService", BeerService::instance());
 

models/basemodel.cpp

@@ -36,9 +36,18 @@ QVariant BaseModel::itemProperty(const QString &itemId, const QString &propertyN
     return item(itemId).value(propertyName, def);
 }
 
-void BaseModel::addItem(const QVariantMap &item) const
+void BaseModel::submitItem(const QVariantMap &item) const
 {
-    service()->sendCommand(entity(), BeerService::ActionAdd, item);
+    QString itemId = item.value("id").toString();
+    if (itemId.isEmpty()) {
+        service()->sendCommand(entity(), BeerService::ActionAdd, item);
+    } else {
+        QVariantMap modItem = this->item(itemId);
+        for (auto it = item.constBegin(); it != item.constEnd(); ++it) {
+            modItem[it.key()] = it.value();
+        }
+        service()->sendCommand(entity(), BeerService::ActionModify, modItem);
+    }
 }
 
 void BaseModel::deleteItem(const QString &itemId) const
@@ -46,16 +55,6 @@ void BaseModel::deleteItem(const QString &itemId) const
     service()->sendCommand(entity(), BeerService::ActionDelete, QVariantMap { { "id", itemId } });
 }
 
-void BaseModel::modifyItem(const QString &itemId, const QVariantMap &properties) const
-{
-    QVariantMap item = this->item(itemId);
-    for (auto it = properties.constBegin(); it != properties.constEnd(); ++it) {
-        item[it.key()] = it.value();
-    }
-
-    service()->sendCommand(entity(), BeerService::ActionModify, item);
-}
-
 void BaseModel::created(const QVariant &data)
 {
     modified(data);

models/basemodel.h

@@ -21,9 +21,8 @@ public:
     QVariantMap item(const QString &itemId) const;
     QVariant itemProperty(const QString &itemId, const QString &propertyName, const QVariant &def = QVariant{}) const;
 
-    void addItem(const QVariantMap &item) const;
+    void submitItem(const QVariantMap &item) const;
     void deleteItem(const QString &itemId) const;
-    void modifyItem(const QString &itemId, const QVariantMap &properties) const;
 
 public slots:
     void created(const QVariant &data);

models/restsmodel.cpp

@@ -0,0 +1,40 @@
+#include "restsmodel.h"
+
+RestsModel::RestsModel(QObject *parent) : BaseModel { "rests", parent }
+{
+    connect(this, &BaseModel::dataChanged, this, &RestsModel::clearCache);
+}
+
+float RestsModel::productRest(const QString &storeId, const QString &productId)
+{
+    return findRest(storeId, productId).value("rest", 0.0).toFloat();
+}
+
+void RestsModel::submitRest(const QString &storeId, const QString &productId, float rest)
+{
+    QVariantMap productRest = findRest(storeId, productId);
+    productRest["rest"] = rest;
+    submitItem(productRest);
+}
+
+QVariantMap RestsModel::findRest(const QString &storeId, const QString &productId)
+{
+    Key restKey(storeId, productId);
+    if (m_rests.isEmpty()) {
+        loadCache();
+    }
+    return m_rests.value(restKey, { { "storeId", storeId}, { "productId", productId} });
+}
+
+void RestsModel::loadCache()
+{
+    for (const QVariant &var : items()) {
+        QVariantMap rest = var.toMap();
+        m_rests[Key(rest.value("storeId").toString(), rest.value("productId").toString())] = rest;
+    }
+}
+
+void RestsModel::clearCache()
+{
+    m_rests.clear();
+}

models/restsmodel.h

@@ -0,0 +1,23 @@
+#ifndef RESTSMODEL_H
+#define RESTSMODEL_H
+
+#include "models/basemodel.h"
+
+class RestsModel : public BaseModel
+{
+public:
+    explicit RestsModel(QObject *parent = nullptr);
+
+    float productRest(const QString &storeId, const QString &productId);
+    void submitRest(const QString &storeId, const QString &productId, float rest);
+
+private:
+    QVariantMap findRest(const QString &storeId, const QString &productId);
+    void loadCache();
+    void clearCache();
+
+    using Key = QPair<QString, QString>;
+    QMap<Key, QVariantMap> m_rests;
+};
+
+#endif // RESTSMODEL_H

services/modelsregister.h

@@ -17,6 +17,13 @@ public:
     static void registerModel(BaseModel *model);
     static BaseModel *model(const QString &name);
 
+    template <class C>
+    static C *get(const QString &name) {
+        C *res = dynamic_cast<C *>(instance()->m_models.value(name));
+        Q_ASSERT(res);
+        return res;
+    }
+
 private:
     ModelsRegister() = default;
     ~ModelsRegister() = default;

viewmodels/productsviewmodel.cpp

@@ -60,7 +60,7 @@ void ProductsViewModel::setOrderValue(const QString &productId, float value)
 void ProductsViewModel::submitOrder()
 {
     BaseModel *ordersModel = ModelsRegister::model("orders");
-    ordersModel->addItem({
+    ordersModel->submitItem({
         { "userId", settings()->selectedUserId() },
         { "storeId", settings()->selectedStoreId() },
         { "products", m_order.values() },

viewmodels/restsviewmodel.cpp

@@ -1,16 +1,12 @@
 #include "restsviewmodel.h"
 
-#include "models/basemodel.h"
 #include "services/settingsservice.h"
 
 RestsViewModel::RestsViewModel(QObject *parent)
     : QObject{parent}
 {
-    connect(m_restsModel, &BaseModel::dataChanged, this, &RestsViewModel::reloadRests);
     connect(m_productsModel, &BaseModel::dataChanged, this, &RestsViewModel::productsChanged);
     connect(settings(), &SettingsService::selectedStoreIdChanged, this, &RestsViewModel::productsChanged);
-
-    reloadRests();
 }
 
 QVariantList RestsViewModel::products() const
@@ -21,11 +17,10 @@ QVariantList RestsViewModel::products() const
     const QVariantList products = m_productsModel->items();
     for (const QVariant &product : products) {
         QString productId = product.toMap().value("id").toString();
-        QVariantMap rest = m_rests.value(storeId).value(productId).toMap();
         res << QVariantMap {
             { "productId", productId },
             { "title", m_productsModel->itemProperty(productId, "name").toString() },
-            { "rest", rest.value("rest", 0.0).toFloat() }
+            { "rest", m_restsModel->productRest(storeId, productId) }
         };
     }
 
@@ -34,36 +29,10 @@ QVariantList RestsViewModel::products() const
 
 void RestsViewModel::setProductRest(const QString &productId, float rest)
 {
-    QString storeId = settings()->selectedStoreId();
-    QVariantMap productRest = m_rests.value(storeId).value(productId).toMap();
-    productRest["rest"] = rest;
-    productRest["storeId"] = storeId;
-    productRest["productId"] = productId;
-    QString restId = productRest.value("id").toString();
-    if (restId.isEmpty()) {
-        m_restsModel->addItem(productRest);
-    } else {
-        m_restsModel->modifyItem(restId, productRest);
-    }
+    m_restsModel->submitRest(settings()->selectedStoreId(), productId, rest);
 }
 
 SettingsService *RestsViewModel::settings() const
 {
     return SettingsService::instance();
 }
-
-void RestsViewModel::reloadRests()
-{
-    m_rests.clear();
-
-    const QVariantList rests = m_restsModel->items();
-    for (const QVariant &varRest : rests) {
-        QVariantMap rest = varRest.toMap();
-        QString storeId = rest.value("storeId").toString();
-        QVariantMap storeRests = m_rests.value(storeId);
-        storeRests[rest.value("productId").toString()] = rest;
-        m_rests[storeId] = storeRests;
-    }
-
-    emit productsChanged();
-}

viewmodels/restsviewmodel.h

@@ -3,8 +3,10 @@
 
 #include <QObject>
 
+#include "models/restsmodel.h"
 #include "services/modelsregister.h"
 
+class RestsModel;
 class SettingsService;
 class RestsViewModel : public QObject
 {
@@ -24,12 +26,9 @@ signals:
 
 private:
     SettingsService *settings() const;
-    void reloadRests();
 
     BaseModel *m_productsModel = ModelsRegister::model("products");
-    BaseModel *m_restsModel = ModelsRegister::model("rests");
-
-    QMap<QString, QVariantMap> m_rests;
+    RestsModel *m_restsModel = ModelsRegister::get<RestsModel>("rests");
 };
 
 #endif // RESTSVIEWMODEL_H