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database/categorydaosqlite.cpp

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+/* Copyright (c) 2018 Albert S.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+#include <string>
+#include <vector>
+#include "categorydaosqlite.h"
+#include "sqlitequeryoption.h"
+CategoryDaoSqlite::CategoryDaoSqlite()
+{
+}
+
+std::optional<Category> CategoryDaoSqlite::find(std::string name)
+{
+	try
+	{
+		Category result;
+		*db << "SELECT id, name FROM category WHERE name = ?" << name >> std::tie(result.id, result.name);
+		return result;
+	}
+	catch(const sqlite::exceptions::no_rows &e)
+	{
+		return {};
+	}
+	catch(sqlite::sqlite_exception &e)
+	{
+		throwFrom(e);
+	}
+}
+
+void CategoryDaoSqlite::save(const Category &c)
+{
+
+	try
+	{
+		*db << "INSERT OR IGNORE INTO category (id, name) VALUES (SELECT id FROM category WHERE lower(name) = "
+			   "lower(?), lower(?)"
+			<< c.name << c.name;
+	}
+	catch(sqlite::sqlite_exception &e)
+	{
+		throwFrom(e);
+	}
+}
+
+void CategoryDaoSqlite::deleteCategory(std::string name)
+{
+	try
+	{
+
+		*db << "BEGIN";
+		*db << "DELETE FROM categorymember WHERE catid = (SELECT id FROM category WHERE name = ?)" << name;
+		*db << "DELETE FROM category WHERE name = ?" << name;
+		*db << "COMMIT;";
+	}
+	catch(sqlite::sqlite_exception &e)
+	{
+		throwFrom(e);
+	}
+}
+
+std::vector<std::string> CategoryDaoSqlite::fetchList(QueryOption o)
+{
+	std::vector<std::string> result;
+	try
+	{
+		auto queryoption = SqliteQueryOption(o).setPrependWhere(true).setOrderByColumn("name").build();
+		*db << "SELECT name FROM category " + queryoption >> [&](std::string n) { result.push_back(n); };
+	}
+	catch(const sqlite::exceptions::no_rows &e)
+	{
+		return result;
+	}
+	catch(const sqlite::sqlite_exception &e)
+	{
+		throwFrom(e);
+	}
+	return result;
+}
+std::vector<std::string> CategoryDaoSqlite::fetchMembers(std::string name, QueryOption o)
+{
+	std::vector<std::string> result;
+
+	SqliteQueryOption queryOption{o};
+	std::string queryoptions =
+		queryOption.setOrderByColumn("name").setVisibleColumnName("page.visible").setPrependWhere(false).build();
+
+	try
+	{
+		auto query = *db << "SELECT page.name AS name FROM categorymember INNER JOIN page ON page.id = "
+							"categorymember.page WHERE category = (SELECT id FROM category WHERE name = ? ) AND " +
+								queryoptions
+						 << name;
+		query >> [&](std::string p) { result.push_back(p); };
+	}
+	catch(const sqlite::exceptions::no_rows &e)
+	{
+		return result;
+	}
+	catch(sqlite::sqlite_exception &e)
+	{
+		throwFrom(e);
+	}
+
+	return result;
+}