添加标签管理

修复sql语句错误

dbunit.cpp

@@ -25,7 +25,7 @@ DBUnit::init_basic_tables(QSqlDatabase& db_ins)
     QSqlQuery q(db_ins);
 
     q.prepare("create table if not exists country_information( "
-              "cid integer auto_increment primary key, "
+              "cid integer primary key autoincrement, "
               "name text not null, describe text)");
     if (!q.exec()) {
         qDebug() << q.lastError();
@@ -33,7 +33,7 @@ DBUnit::init_basic_tables(QSqlDatabase& db_ins)
     }
 
     q.prepare("create table if not exists publishing_information( "
-              "pid integer auto_increment primary key, name text not null, "
+              "pid integer primary key autoincrement, name text not null, "
               "country integer not null, describe text, "
               "constraint fk_pi foreign key (country) references country_information(cid) "
               "on update cascade on delete cascade)");
@@ -43,7 +43,7 @@ DBUnit::init_basic_tables(QSqlDatabase& db_ins)
     }
 
     q.prepare("create table if not exists authors_information( "
-              "author_id integer auto_increment primary key, name text not null, "
+              "author_id integer primary key autoincrement, name text not null, "
               "country integer not null, describe text, "
               "constraint fk_ai foreign key (country) references country_information(cid) "
               "on delete cascade on update cascade)");
@@ -53,7 +53,7 @@ DBUnit::init_basic_tables(QSqlDatabase& db_ins)
     }
 
     q.prepare("create table if not exists books_information("
-              "book_id integer auto_increment primary key,isbn text not null,"
+              "book_id integer primary key autoincrement,isbn text not null,"
               "name text not null,publishing integer not null,author integer not null,"
               "author2 integer not null,language text,time text,abstract text,image text,"
               "constraint fk_bi0 foreign key (publishing) references publishing_information on delete cascade on update cascade,"
@@ -65,7 +65,7 @@ DBUnit::init_basic_tables(QSqlDatabase& db_ins)
     }
 
     q.prepare("create table if not exists groups_records("
-              "record_id integer auto_increment primary key,"
+              "record_id integer primary key autoincrement,"
               "name text not null)");
     if (!q.exec()) {
         qDebug() << q.lastError();
@@ -73,7 +73,7 @@ DBUnit::init_basic_tables(QSqlDatabase& db_ins)
     }
 
     q.prepare("create table if not exists labels_records( "
-              "record_id integer auto_increment primary key, "
+              "record_id integer primary key autoincrement, "
               "name text not null, describe text)");
     if (!q.exec()) {
         qDebug() << q.lastError();
@@ -81,7 +81,7 @@ DBUnit::init_basic_tables(QSqlDatabase& db_ins)
     }
 
     q.prepare("create table if not exists books_manage("
-              "record_id integer auto_increment primary key,"
+              "record_id integer primary key autoincrement,"
               "book integer not null,`group` integer not null,"
               "constraint fk_bm0 foreign key (book) references books_information(record_id) on delete cascade on update cascade,"
               "constraint fk_bm1 foreign key (`group`) references groups_records(record_id) on delete cascade on update cascade)");
@@ -91,7 +91,7 @@ DBUnit::init_basic_tables(QSqlDatabase& db_ins)
     }
 
     q.prepare("create table if not exists book_labels_manage( "
-              "record_id integer auto_increment primary key, "
+              "record_id integer primary key autoincrement, "
               "book integer not null,label integer not null, "
               "constraint fk_blm0 foreign key (book) references books_information(book_id) on delete cascade on update cascade,"
               "constraint fk_blm1 foreign key (label) references labels_records(record_id) on delete cascade on update cascade)");

labelsmanagement.cpp

@@ -0,0 +1,119 @@
+#include "labelsmanagement.h"
+#include "dbunit.h"
+#include <QDebug>
+#include <QGridLayout>
+#include <QInputDialog>
+#include <QLineEdit>
+#include <QPushButton>
+#include <QSqlError>
+#include <QSqlQuery>
+
+LabelsManagement::LabelsManagement(DBUnit* tool, QWidget* parent)
+    : QDialog(parent), db_host(tool), keywords_input(new QLineEdit(this)),
+      labels_view(new QTableView(this)), labels_model(new QStandardItemModel(this)),
+      append(new QPushButton("增加", this)), remove(new QPushButton("移除", this))
+{
+    auto layout = new QGridLayout(this);
+    layout->addWidget(keywords_input, 0, 0, 1, 4);
+    layout->addWidget(labels_view, 1, 0, 3, 4);
+    layout->addWidget(append, 4, 0, 1, 2);
+    layout->addWidget(remove, 4, 2, 1, 2);
+
+    labels_view->setModel(labels_model);
+    labels_model->setHorizontalHeaderLabels(QStringList() << "名称"
+                                                          << "简述");
+
+    init_labels_model(this->labels_model);
+
+    connect(append, &QPushButton::clicked, [this]() {
+        QInputDialog in;
+        in.setWindowTitle("输入标签名称");
+        in.setLabelText("输入重复标签：");
+        if (in.exec() == QDialog::Rejected)
+            return;
+
+        auto q = db_host->getQuery();
+        q.prepare("insert into labels_records "
+                  "(name, describe) values(:n, :d)");
+        q.bindValue(":n", in.textValue());
+        q.bindValue(":d", "请手动修改简介文字");
+        if (!q.exec()) {
+            qDebug() << q.lastError();
+            return;
+        }
+        q.prepare("select record_id from labels_records order by record_id desc");
+        if (!q.exec()) {
+            qDebug() << q.lastError();
+            return;
+        }
+        QList<QStandardItem*> row;
+        row << new QStandardItem(in.textValue());
+        row.last()->setData(q.value(0), Qt::UserRole + 1);
+        row << new QStandardItem("请手动修改标签简介");
+        labels_model->appendRow(row);
+    });
+    connect(remove, &QPushButton::clicked, [this]() {
+        auto index = labels_view->currentIndex();
+        if (!index.isValid())
+            return;
+
+        auto idindex = index.sibling(index.row(), 0);
+        auto q = db_host->getQuery();
+        q.prepare("delete from labels_records where record_id=:id");
+        q.bindValue(":id", idindex.data(Qt::UserRole + 1));
+        if (!q.exec()) {
+            qDebug() << q.lastError();
+            return;
+        }
+
+        labels_model->removeRow(index.row());
+    });
+    connect(keywords_input, &QLineEdit::textChanged, this, &LabelsManagement::input_query);
+}
+
+void
+LabelsManagement::init_labels_model(QStandardItemModel* model)
+{
+    auto q = db_host->getQuery();
+    q.prepare("select record_id, name, describe from labels_records");
+    if (!q.exec()) {
+        qDebug() << q.lastError();
+        return;
+    }
+
+    model->removeRows(0, model->rowCount());
+    while (q.next()) {
+        QList<QStandardItem*> row;
+        row << new QStandardItem(q.value(1).toString());
+        row.last()->setData(q.value(0), Qt::UserRole + 1);
+        row << new QStandardItem(q.value(2).toString());
+        model->appendRow(row);
+    }
+}
+
+void
+LabelsManagement::input_query(const QString& keywords)
+{
+    labels_model->removeRows(0, labels_model->rowCount());
+    if (keywords.trimmed().isEmpty())
+        return;
+
+    QString string = "select record_id, name, describe from labels_records ";
+    if (keywords != "*")
+        string += "where name like '%" + keywords + "%'";
+
+    auto q = db_host->getQuery();
+    q.prepare(string);
+    if (!q.exec()) {
+        qDebug() << q.lastError();
+        return;
+    }
+
+    while (q.next()) {
+        QList<QStandardItem*> row;
+        row << new QStandardItem(q.value(1).toString());
+        row.last()->setData(q.value(0), Qt::UserRole + 1);
+        row << new QStandardItem(q.value(2).toString());
+        labels_model->appendRow(row);
+    }
+}

labelsmanagement.h

@@ -0,0 +1,30 @@
+#ifndef LABELSMANAGEMENT_H
+#define LABELSMANAGEMENT_H
+
+#include <QDialog>
+#include <QLineEdit>
+#include <QPushButton>
+#include <QStandardItemModel>
+#include <QTableView>
+#include <QWidget>
+
+class DBUnit;
+
+class LabelsManagement : public QDialog {
+    Q_OBJECT
+public:
+    explicit LabelsManagement(DBUnit* tool, QWidget* parent = nullptr);
+
+private:
+    DBUnit* const db_host;
+
+    QLineEdit* const keywords_input;
+    QTableView* const labels_view;
+    QStandardItemModel* const labels_model;
+    QPushButton *const append, *const remove;
+
+    void init_labels_model(QStandardItemModel* model);
+    void input_query(const QString& keywords);
+};
+
+#endif // LABELSMANAGEMENT_H

main.cpp

@@ -1,14 +1,17 @@
 #include "dbunit.h"
+#include "labelsmanagement.h"
 #include "mainwindow.h"
 #include <QApplication>
 
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
-    MainWindow w;
-    w.show();
+    //    MainWindow w;
+    //    w.show();
 
-    //    DBUnit t;
+    DBUnit tool;
+    LabelsManagement m(&tool);
+    m.show();
 
     return a.exec();
 }