This is the first time I am trying to store a more complex object in a database. I need help developing a database.
recipe Object I want to save and restore from a database
{
"id": 2345,
"name": "cake",
"description": "yummy cake",
"categorys": [
17,
26
],
"persons": 4,
"author": 26,
"language": "de",
"unit": "en",
"variantOf": 34,
"specialTools": [
34,
44,
10
],
"img": "32598734.jpg",
"estTime": 2777,
"steps": {
"1": {
"title": "mix",
"description": "mix all together",
"img": "45854.jpg",
"timer": null,
"ingredients": [
{
"name": "Butter",
"color": "#227799",
"amount": 150,
"unit": "g"
},
{
"name": "egg",
"color": "#aaff22",
"amount": 3,
"unit": "pc"
},
{
"name": "sugar",
"color": "#22ffff",
"amount": 50,
"unit": "g"
}
]
},
"2": {
"title": "bake",
"description": "put it in the oven",
"img": null,
"timer": 2400,
"ingredients": [
{
"name": "butter",
"color": "#227799",
"amount": null,
"unit": null
},
{
"name": "sugar",
"color": "#22ffff",
"amount": null,
"unit": null
},
{
"name": "egg",
"color": "#aaff22",
"amount": null,
"unit": null
}
]
}
}
}
The hardest part is the object steps. Each recipe can have a different number of steps with different ingredients assigned to each set.
Here is the database project I made
recipe_id, step_id- foreign keys. I want everything in different tables, because recipes must be sorted by ingredients, categories ...
SQL code to create the most important tables
- ------------------------------------------------ -----
- Table `dev_Recipe`.`recipe`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `dev_Recipe`.`recipe` (
`id` INT UNSIGNED NOT NULL AUTO_INCREMENT ,
`name` VARCHAR(255) NULL ,
`description` TEXT NULL ,
`author_id` INT UNSIGNED NOT NULL ,
PRIMARY KEY (`id`) ,
INDEX `author_id_idx` (`author_id` ASC) ,
CONSTRAINT `author_id`
FOREIGN KEY (`author_id` )
REFERENCES `dev_Recipe`.`users` (`id` )
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `dev_Recipe`.`step`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `dev_Recipe`.`step` (
`id` INT UNSIGNED NOT NULL AUTO_INCREMENT ,
`recipe_id` INT UNSIGNED NOT NULL ,
`step_number` INT UNSIGNED NOT NULL ,
`description` TEXT NULL ,
`timer` INT UNSIGNED NULL ,
`image` VARCHAR(100) NULL ,
PRIMARY KEY (`id`) ,
INDEX `recipe_id_idx` (`recipe_id` ASC) ,
CONSTRAINT `step_recipe_id`
FOREIGN KEY (`recipe_id` )
REFERENCES `dev_Recipe`.`recipe` (`id` )
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `dev_Recipe`.`ingredient`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `dev_Recipe`.`ingredient` (
`id` INT UNSIGNED NOT NULL AUTO_INCREMENT ,
`name` VARCHAR(45) NOT NULL ,
`color` INT NOT NULL ,
`img` VARCHAR(45) NULL ,
PRIMARY KEY (`id`) )
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `dev_Recipe`.`step_ingredients`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `dev_Recipe`.`step_ingredients` (
`recipe_id` INT UNSIGNED NOT NULL ,
`ingredient_id` INT UNSIGNED NOT NULL ,
`step_id` INT UNSIGNED NOT NULL ,
`amount` INT NULL ,
`unit` VARCHAR(25) NULL ,
INDEX `recipe_id_idx` (`recipe_id` ASC) ,
INDEX `ingredient_id_idx` (`ingredient_id` ASC) ,
INDEX `step_id_idx` (`step_id` ASC) ,
PRIMARY KEY (`recipe_id`, `step_id`) ,
CONSTRAINT `step_ing_recipe_id`
FOREIGN KEY (`recipe_id` )
REFERENCES `dev_Recipe`.`recipe` (`id` )
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `ingredient_step_ing_id`
FOREIGN KEY (`ingredient_id` )
REFERENCES `dev_Recipe`.`ingredient` (`id` )
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `step_ing_id`
FOREIGN KEY (`step_id` )
REFERENCES `dev_Recipe`.`step` (`id` )
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;, , . ?
, recipes step step ingredients.
, , ingredients_id recipe_id, step_ingredients, . ?