60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
#ifndef QUERY_H
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#define QUERY_H
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#pragma once
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#include "Park_spot.h"
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/*these are the functions that search the database and create objects from it.
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query_parktimes_for_customer searches for the parktimes that are needed in
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customer initialisaiton. generally, i see no use outside of that.
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query_customer_with_name searches for customer data by name.
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query_customer_with_id does what the above does, but with id.
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populate_spots is used to query for all the park_spots and return them as
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objects.
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The design desision to use vector<T> instead of <T> is for the following
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reasons:
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1. some of these can potentially return more than one object. For example, 2
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customers who have the same name.
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2. I have no clue how many of you have done error handling in c++
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(try/catch/finally).
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Ya boi is nice and doesn't want to bombard you with more new concepts than needed.
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so now you'd do
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vector<Customer> test = query_customer_with_name("Testman");
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if (!test.size()) {print no customers found, do stuff}
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else if (test.size() > 1) { do stuff to get the right one if you only need one
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}
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instead of
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try {
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customer test = query_customer_with_name("Testman");
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}
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catch(someException.probablycalled_not_found) {do_Stuff};
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catch(...) {
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do stuff
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}
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finally{
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do more stuff
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}
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3. Ya boi needs to brush up on how to create custom exceptions class, and it will complicate code furhter.
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*/
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vector<Park_time> query_parktimes_for_customer(int cid);
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vector<Customer> query_customer_with_name(string name);
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Customer query_customer_with_id(int id);
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vector<Park_spot> populate_spots();
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#endif // CUSTOMER_H
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