126 lines
4.2 KiB
C++
126 lines
4.2 KiB
C++
#include "recipedatabase.h"
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RecipeDatabase::RecipeDatabase(string filename) : Database(filename){
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this->ensureTablesExist();
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}
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bool RecipeDatabase::storeRecipe(Recipe recipe){
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///TODO: Implement this in a smart way using transaction.
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ResultTable t = this->executeSQL("SELECT * FROM recipe WHERE name='"+recipe.getName()+"';");
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if (!t.isEmpty()){
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fprintf(stderr, "Error storing recipe: Recipe with name %s already exists.\n", recipe.getName().c_str());
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return false;
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} else {
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bool success = this->insertInto("recipe",
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vector<string>({
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"name",
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"createdDate",
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"cookTime",
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"prepTime",
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"servingCount"
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}),
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vector<string>({
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recipe.getName(),
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recipe.getCreatedDate().toString().toStdString(),
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recipe.getCookTime().toString().toStdString(),
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recipe.getPrepTime().toString().toStdString(),
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std::to_string(recipe.getServings())
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}));
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if (success){
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//If successful, proceed to insert instructions, image, and ingredients.
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int recipeId = this->getLastInsertedRowId();
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for (unsigned int i = 0; i < recipe.getIngredients().size(); i++){
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if (!this->storeRecipeIngredient(recipe.getIngredients()[i], recipeId)){
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return false;
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}
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}
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if (!this->storeInstruction(recipe.getInstruction(), recipeId)){
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return false;
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}
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if (!this->storeImage(recipe.getImage(), recipeId)){
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return false;
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}
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return true;
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} else {
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return false;
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}
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}
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}
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bool RecipeDatabase::storeRecipeIngredient(RecipeIngredient ri, int recipeId){
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//First check if the base ingredient has been added to the database. This is done within storeIngredient().
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ResultTable t = this->executeSQL("SELECT ingredientId FROM ingredient WHERE name='"+ri.getName()+"';");
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int ingId = 0;
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if (t.isEmpty()){
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if (!this->insertInto("ingredient", vector<string>({"foodGroup", "name"}), vector<string>({ri.getFoodGroup(), ri.getName()}))){
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return false;
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}
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ingId = this->getLastInsertedRowId();
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} else {
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ingId = std::stoi(t.valueAt(0, 0));
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}
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return this->insertInto("recipeIngredient",
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vector<string>({
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"ingredientId",
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"recipeId",
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"quantity",
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"unitName",
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"comment"
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}),
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vector<string>({
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std::to_string(ingId),
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std::to_string(recipeId),
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std::to_string(ri.getQuantity()),
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ri.getUnit().getName(),
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ri.getComment()
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}));
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}
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void RecipeDatabase::storeIngredient(Ingredient ingredient){
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ResultTable t = this->executeSQL("SELECT * FROM ingredient WHERE name='"+ingredient.getName()+"';");
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if (t.isEmpty()){
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this->insertInto("ingredient", vector<string>({"foodGroup", "name"}), vector<string>({ingredient.getFoodGroup(), ingredient.getName()}));
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}
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}
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bool RecipeDatabase::storeInstruction(Instruction instruction, int recipeId){
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bool success = FileUtils::saveInstruction(recipeId, instruction);
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return success;
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}
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bool RecipeDatabase::storeImage(QImage image, int recipeId){
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return FileUtils::saveImage(recipeId, image);
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}
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void RecipeDatabase::ensureTablesExist(){
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//Make sure that foreign keys are enabled.
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this->executeSQL("PRAGMA foreign_keys = ON;");
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//Ingredients table.
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this->executeSQL("CREATE TABLE IF NOT EXISTS ingredient("
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"ingredientId INTEGER PRIMARY KEY,"
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"foodGroup varchar,"
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"name varchar);");
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//Recipe table. Each recipe can have at most one instruction, and one image.
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this->executeSQL("CREATE TABLE IF NOT EXISTS recipe("
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"recipeId INTEGER PRIMARY KEY,"
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"createdDate date,"
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"name varchar,"
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"cookTime time,"
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"prepTime time,"
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"servingCount real);");
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//Recipe tags table.
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this->executeSQL("CREATE TABLE IF NOT EXISTS recipeTag("
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"recipeId INTEGER PRIMARY KEY,"
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"tagName varchar,"
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"FOREIGN KEY (recipeId) REFERENCES recipe(recipeId));");
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//RecipeIngredient table.
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this->executeSQL("CREATE TABLE IF NOT EXISTS recipeIngredient("
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"ingredientId int,"
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"recipeId int,"
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"quantity real,"
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"unitName varchar,"
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"comment varchar,"
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"FOREIGN KEY (ingredientId) REFERENCES ingredient(ingredientId),"
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"FOREIGN KEY (recipeId) REFERENCES recipe(recipeId));");
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}
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