Conditions | 5 |
Paths | 9 |
Total Lines | 51 |
Code Lines | 31 |
Lines | 0 |
Ratio | 0 % |
Changes | 10 | ||
Bugs | 1 | Features | 2 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
1 | <?php |
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31 | public function takeReservation(array $request) |
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32 | { |
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33 | $issuer = $request['issuer']; |
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34 | $service = $request['service']; |
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35 | $contact = $request['contact']; |
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36 | $comments = $request['comments']; |
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37 | |||
38 | $vacancies = $this->calendar() |
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39 | ->forService($service->id) |
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40 | ->forDate($request['date']) |
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41 | ->atTime($request['time']) |
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42 | ->find(); |
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43 | |||
44 | if ($vacancies->count() == 0) { |
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45 | // Log failure feedback message |
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46 | return false; |
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47 | } |
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48 | |||
49 | if ($vacancies->count() > 1) { |
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50 | // Log unexpected behavior message |
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51 | $vacancy = $vacancies->first(); |
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52 | } |
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53 | |||
54 | if ($vacancies->count() == 1) { |
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55 | $vacancy = $vacancies->first(); |
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56 | } |
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57 | |||
58 | $startAt = $this->makeDateTimeUTC($request['date'], $request['time'], $request['timezone']); |
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59 | $finishAt = $startAt->copy()->addMinutes($service->duration); |
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60 | |||
61 | $appointment = $this->generateAppointment( |
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62 | $issuer, |
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63 | $this->business->id, |
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64 | $contact->id, |
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65 | $service->id, |
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66 | $startAt, |
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67 | $finishAt, |
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68 | $comments |
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69 | ); |
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70 | |||
71 | /* Should be moved inside generateAppointment() */ |
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72 | if ($appointment->duplicates()) { |
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73 | throw new DuplicatedAppointmentException(); |
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74 | } |
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75 | |||
76 | /* Should be moved inside generateAppointment() */ |
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77 | $appointment->vacancy()->associate($vacancy); |
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78 | $appointment->save(); |
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79 | |||
80 | return $appointment; |
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81 | } |
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82 | |||
117 |
If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: