| Conditions | 10 |
| Paths | 10 |
| Total Lines | 32 |
| Code Lines | 29 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 0 | ||
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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| 11 | public function getElementXpath($type, $count) |
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| 12 | { |
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| 13 | switch ($type) { |
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| 14 | case ProductSummary::DESCRIPTION: |
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| 15 | return $this->theme->getProductGridDescriptionXpath($count); |
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| 16 | break; |
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| 17 | case ProductSummary::TITLE: |
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| 18 | return $this->theme->getProductGridTitleXpath($count); |
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| 19 | break; |
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| 20 | case ProductSummary::COMPARE_LINK: |
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| 21 | return $this->theme->getProductGridCompareLinkXpath($count); |
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| 22 | break; |
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| 23 | case ProductSummary::IMAGE: |
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| 24 | return $this->theme->getProductGridImageXpath($count); |
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| 25 | break; |
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| 26 | case ProductSummary::LINK: |
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| 27 | return $this->theme->getProductGridLinkXpath($count); |
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| 28 | break; |
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| 29 | case ProductSummary::ORIGINAL_PRICE: |
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| 30 | return $this->theme->getProductGridOriginalPriceXpath($count); |
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| 31 | break; |
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| 32 | case ProductSummary::PRICE: |
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| 33 | return $this->theme->getProductGridPriceXpath($count); |
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| 34 | break; |
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| 35 | case ProductSummary::WISHLIST_LINK: |
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| 36 | return $this->theme->getProductGridWishlistLinkXpath($count); |
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| 37 | break; |
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| 38 | case ProductSummary::ADD_TO_CART_LINK: |
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| 39 | return $this->theme->getProductGridAddToCartLinkXpath($count); |
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| 40 | break; |
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| 41 | } |
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| 42 | } |
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| 43 | |||
| 45 | } |
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: