Orhan week 3#39
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OBakir90 wants to merge 5 commits into
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Ashaghel
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Oct 1, 2020
| const attributes = [searchName] | ||
| const sql1 = "select p.product_name, pa.unit_price, s.supplier_name from product_availability pa join products p on pa.prod_id = p.id join suppliers s on pa.supp_id = s.id where Lower(p.product_name) like '%'|| $1 ||'%'"; | ||
| const sql2 = 'select p.product_name, pa.unit_price, s.supplier_name from product_availability pa join products p on pa.prod_id = p.id join suppliers s on pa.supp_id = s.id'; | ||
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while this will work with no issue
it can be harder to maintain and scale up
for better fix you can have arguments and where conditions alone as variables that are added to main string on a conditions
| const prod_id = req.body.prod_id; | ||
| const supp_id = req.body.supp_id; | ||
| const price = req.body.unit_price; | ||
| if (price < 0) { |
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casting price from string to number
also a check for integers ?
| const sql_supp = "select * from product_availability where supp_id = $1" | ||
| db.query(sql_supp, [supp_id], (err, result) => { | ||
| if (err || result.rows.length == 0) { | ||
| res.status(500).send(err, "Didnt match foreign key supp_id") |
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a much friendlier message is usually sent to the user, you never send db secrets
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