1 | <?php |
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2 | |||
3 | namespace Fomvasss\SlugMaker; |
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4 | |||
5 | /** |
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6 | * Class SlugGenerator |
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7 | * |
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8 | * @package \Fomvasss\SlugGenerator |
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9 | */ |
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10 | trait SlugGenerator |
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11 | { |
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12 | /** |
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13 | * @param string $str |
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14 | * @return string |
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15 | */ |
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16 | public function getSlug(string $str) |
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17 | { |
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18 | $nonUniqueSlug = $this->makeNonUniqueSlug($str); |
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19 | |||
20 | return $this->makeUniqueSlug($nonUniqueSlug); |
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21 | } |
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22 | |||
23 | /** |
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24 | * @param string $str |
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25 | * @return string |
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26 | */ |
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27 | protected function makeNonUniqueSlug(string $str): string |
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28 | { |
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29 | return str_slug($this->getClippedSlugWithPrefixSuffix($str), $this->slugConfig['separator']); |
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30 | } |
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31 | |||
32 | /** |
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33 | * @param string $slugSourceString |
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34 | * @return string |
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35 | */ |
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36 | public function getClippedSlugWithPrefixSuffix(string $slugSourceString): string |
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37 | { |
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38 | $prefix = $this->slugConfig['prefix']; |
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39 | $suffix = $this->slugConfig['suffix']; |
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40 | |||
41 | $maximumLength= $this->slugConfig['maximum_length']; |
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42 | |||
43 | if ($strLen = strlen($prefix) + strlen($suffix)) { |
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44 | $limitWithoutPrefixSuffix = $maximumLength - ($strLen + 2); |
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45 | |||
46 | if ($limitWithoutPrefixSuffix < 1) { |
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47 | return str_limit($prefix.' '.$suffix, $maximumLength); |
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48 | } |
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49 | |||
50 | return $prefix.' '.str_limit($slugSourceString, $limitWithoutPrefixSuffix, '').' '.$suffix; |
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51 | } |
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52 | |||
53 | return str_limit($slugSourceString, $maximumLength); |
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54 | } |
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55 | |||
56 | /** |
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57 | * @param string $slug |
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58 | * @return string |
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59 | */ |
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60 | protected function makeUniqueSlug(string $slug): string |
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61 | { |
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62 | $originalSlug = $slug; |
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63 | $i = 1; |
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64 | while ($this->otherRecordExistsWithSlug($slug) || $slug === '') { |
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65 | $slug = $originalSlug.'-'.$i++; |
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66 | } |
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67 | |||
68 | return $slug; |
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69 | } |
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70 | |||
71 | /** |
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72 | * @param string $slug |
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73 | * @return bool |
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74 | */ |
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75 | protected function otherRecordExistsWithSlug(string $slug): bool |
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76 | { |
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77 | $classModel = app()->make($this->slugConfig['model']); |
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78 | |||
79 | return (bool) $classModel::where('name', $slug) |
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80 | ->where('id', '<>', optional($this->currentSlugModel)->id) |
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81 | ->withoutGlobalScopes() |
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82 | ->first(); |
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83 | } |
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84 | } |
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85 |