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Update tutorial.controller.js #7

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215 changes: 89 additions & 126 deletions app/controllers/tutorial.controller.js
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Original file line number Diff line number Diff line change
@@ -1,152 +1,115 @@
const db = require("../models");
const Tutorial = db.tutorials;
const Op = db.Sequelize.Op;
const { tutorials: Tutorial, Sequelize: { Op } } = db;

// Create and Save a new Tutorial
exports.create = (req, res) => {
// Validate request
if (!req.body.title) {
res.status(400).send({
message: "Content can not be empty!"
});
return;
// Error handler
const handleError = (res, message, statusCode = 500) => {
res.status(statusCode).send({ message });
};

// Request validation
const validateRequest = (req, res, fields) => {
for (const field of fields) {
if (!req.body[field]) {
handleError(res, `${field} can not be empty!`, 400);
return false;
}
}
return true;
};

// Create a Tutorial
const tutorial = {
title: req.body.title,
description: req.body.description,
published: req.body.published ? req.body.published : false
};
// Create and Save a new Tutorial
exports.create = async (req, res) => {
if (!validateRequest(req, res, ['title'])) return;

// Save Tutorial in the database
Tutorial.create(tutorial)
.then(data => {
res.send(data);
})
.catch(err => {
res.status(500).send({
message:
err.message || "Some error occurred while creating the Tutorial."
});
});
try {
const tutorial = {
title: req.body.title,
description: req.body.description,
published: req.body.published || false
};
const data = await Tutorial.create(tutorial);
res.send(data);
} catch (err) {
handleError(res, err.message || "Some error occurred while creating the Tutorial.");
}
};

// Retrieve all Tutorials from the database.
exports.findAll = (req, res) => {
const title = req.query.title;
var condition = title ? { title: { [Op.like]: `%${title}%` } } : null;

Tutorial.findAll({ where: condition })
.then(data => {
res.send(data);
})
.catch(err => {
res.status(500).send({
message:
err.message || "Some error occurred while retrieving tutorials."
});
});
exports.findAll = async (req, res) => {
try {
const { title } = req.query;
const condition = title ? { title: { [Op.like]: `%${title}%` } } : null;
const data = await Tutorial.findAll({ where: condition });
res.send(data);
} catch (err) {
handleError(res, err.message || "Some error occurred while retrieving tutorials.");
}
};

// Find a single Tutorial with an id
exports.findOne = (req, res) => {
const id = req.params.id;
exports.findOne = async (req, res) => {
const { id } = req.params;

Tutorial.findByPk(id)
.then(data => {
if (data) {
res.send(data);
} else {
res.status(404).send({
message: `Cannot find Tutorial with id=${id}.`
});
}
})
.catch(err => {
res.status(500).send({
message: "Error retrieving Tutorial with id=" + id
});
});
try {
const data = await Tutorial.findByPk(id);
if (data) {
res.send(data);
} else {
handleError(res, `Cannot find Tutorial with id=${id}.`, 404);
}
} catch (err) {
handleError(res, `Error retrieving Tutorial with id=${id}`);
}
};

// Update a Tutorial by the id in the request
exports.update = (req, res) => {
const id = req.params.id;
exports.update = async (req, res) => {
const { id } = req.params;

Tutorial.update(req.body, {
where: { id: id }
})
.then(num => {
if (num == 1) {
res.send({
message: "Tutorial was updated successfully."
});
} else {
res.send({
message: `Cannot update Tutorial with id=${id}. Maybe Tutorial was not found or req.body is empty!`
});
}
})
.catch(err => {
res.status(500).send({
message: "Error updating Tutorial with id=" + id
});
});
try {
const [num] = await Tutorial.update(req.body, { where: { id } });
if (num === 1) {
res.send({ message: "Tutorial was updated successfully." });
} else {
handleError(res, `Cannot update Tutorial with id=${id}. Maybe Tutorial was not found or req.body is empty!`, 400);
}
} catch (err) {
handleError(res, `Error updating Tutorial with id=${id}`);
}
};

// Delete a Tutorial with the specified id in the request
exports.delete = (req, res) => {
const id = req.params.id;
exports.delete = async (req, res) => {
const { id } = req.params;

Tutorial.destroy({
where: { id: id }
})
.then(num => {
if (num == 1) {
res.send({
message: "Tutorial was deleted successfully!"
});
} else {
res.send({
message: `Cannot delete Tutorial with id=${id}. Maybe Tutorial was not found!`
});
}
})
.catch(err => {
res.status(500).send({
message: "Could not delete Tutorial with id=" + id
});
});
try {
const num = await Tutorial.destroy({ where: { id } });
if (num === 1) {
res.send({ message: "Tutorial was deleted successfully!" });
} else {
handleError(res, `Cannot delete Tutorial with id=${id}. Maybe Tutorial was not found!`, 404);
}
} catch (err) {
handleError(res, `Could not delete Tutorial with id=${id}`);
}
};

// Delete all Tutorials from the database.
exports.deleteAll = (req, res) => {
Tutorial.destroy({
where: {},
truncate: false
})
.then(nums => {
res.send({ message: `${nums} Tutorials were deleted successfully!` });
})
.catch(err => {
res.status(500).send({
message:
err.message || "Some error occurred while removing all tutorials."
});
});
exports.deleteAll = async (req, res) => {
try {
const nums = await Tutorial.destroy({ where: {}, truncate: false });
res.send({ message: `${nums} Tutorials were deleted successfully!` });
} catch (err) {
handleError(res, err.message || "Some error occurred while removing all tutorials.");
}
};

// find all published Tutorial
exports.findAllPublished = (req, res) => {
Tutorial.findAll({ where: { published: true } })
.then(data => {
res.send(data);
})
.catch(err => {
res.status(500).send({
message:
err.message || "Some error occurred while retrieving tutorials."
});
});
// Find all published Tutorials
exports.findAllPublished = async (req, res) => {
try {
const data = await Tutorial.findAll({ where: { published: true } });
res.send(data);
} catch (err) {
handleError(res, err.message || "Some error occurred while retrieving tutorials.");
}
};