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1 | <?php |
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2 | |||
3 | namespace SilverStripe\Comments\Extensions; |
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4 | |||
5 | use SilverStripe\Comments\Admin\CommentsGridField; |
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6 | use SilverStripe\Comments\Admin\CommentsGridFieldConfig; |
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7 | use SilverStripe\Comments\Controllers\CommentingController; |
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8 | use SilverStripe\Comments\Model\Comment; |
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9 | use SilverStripe\Control\Controller; |
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10 | use SilverStripe\Control\Director; |
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11 | use SilverStripe\Control\Session; |
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12 | use SilverStripe\Core\Config\Config; |
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13 | use SilverStripe\Core\Manifest\ModuleLoader; |
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14 | use SilverStripe\Dev\Deprecation; |
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15 | use SilverStripe\Forms\CheckboxField; |
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16 | use SilverStripe\Forms\DropdownField; |
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17 | use SilverStripe\Forms\FieldGroup; |
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18 | use SilverStripe\Forms\FieldList; |
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19 | use SilverStripe\Forms\Tab; |
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20 | use SilverStripe\Forms\TabSet; |
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21 | use SilverStripe\ORM\DataExtension; |
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22 | use SilverStripe\ORM\PaginatedList; |
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23 | use SilverStripe\Security\Member; |
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24 | use SilverStripe\Security\Permission; |
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25 | use SilverStripe\View\Requirements; |
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26 | |||
27 | /** |
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28 | * Extension to {@link DataObject} to enable tracking comments. |
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29 | * |
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30 | * @package comments |
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31 | */ |
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32 | class CommentsExtension extends DataExtension |
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33 | { |
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34 | /** |
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35 | * Default configuration values |
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36 | * |
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37 | * enabled: Allows commenting to be disabled even if the extension is present |
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38 | * enabled_cms: Allows commenting to be enabled or disabled via the CMS |
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39 | * require_login: Boolean, whether a user needs to login (required for required_permission) |
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40 | * require_login_cms: Allows require_login to be set via the CMS |
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41 | * required_permission: Permission (or array of permissions) required to comment |
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42 | * include_js: Enhance operation by ajax behaviour on moderation links (required for use_preview) |
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43 | * use_gravatar: Set to true to show gravatar icons |
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44 | * gravatar_default: Theme for 'not found' gravatar {@see http://gravatar.com/site/implement/images} |
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45 | * gravatar_rating: Gravatar rating (same as the standard default) |
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46 | * show_comments_when_disabled: Show older comments when commenting has been disabled. |
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47 | * order_comments_by: Default sort order. |
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48 | * order_replies_by: Sort order for replies. |
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49 | * comments_holder_id: ID for the comments holder |
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50 | * comment_permalink_prefix: ID prefix for each comment |
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51 | * require_moderation: Require moderation for all comments |
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52 | * require_moderation_cms: Ignore other comment moderation config settings and set via CMS |
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53 | * frontend_moderation: Display unmoderated comments in the frontend, if the user can moderate them. |
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54 | * frontend_spam: Display spam comments in the frontend, if the user can moderate them. |
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55 | * html_allowed: Allow for sanitized HTML in comments |
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56 | * use_preview: Preview formatted comment (when allowing HTML) |
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57 | * nested_comments: Enable nested comments |
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58 | * nested_depth: Max depth of nested comments in levels (where root is 1 depth) 0 means no limit. |
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59 | * |
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60 | * @var array |
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61 | * |
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62 | * @config |
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63 | */ |
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64 | private static $comments = array( |
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65 | 'enabled' => true, |
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66 | 'enabled_cms' => false, |
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67 | 'require_login' => false, |
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68 | 'require_login_cms' => false, |
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69 | 'required_permission' => false, |
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70 | 'include_js' => true, |
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71 | 'use_gravatar' => false, |
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72 | 'gravatar_size' => 80, |
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73 | 'gravatar_default' => 'identicon', |
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74 | 'gravatar_rating' => 'g', |
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75 | 'show_comments_when_disabled' => false, |
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76 | 'order_comments_by' => '"Created" DESC', |
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77 | 'order_replies_by' => false, |
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78 | 'comments_per_page' => 10, |
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79 | 'comments_holder_id' => 'comments-holder', |
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80 | 'comment_permalink_prefix' => 'comment-', |
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81 | 'require_moderation' => false, |
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82 | 'require_moderation_nonmembers' => false, |
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83 | 'require_moderation_cms' => false, |
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84 | 'frontend_moderation' => false, |
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85 | 'frontend_spam' => false, |
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86 | 'html_allowed' => false, |
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87 | 'html_allowed_elements' => array('a', 'img', 'i', 'b'), |
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88 | 'use_preview' => false, |
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89 | 'nested_comments' => false, |
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90 | 'nested_depth' => 2, |
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91 | ); |
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92 | |||
93 | /** |
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94 | * @var array |
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95 | */ |
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96 | private static $db = array( |
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97 | 'ProvideComments' => 'Boolean', |
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98 | 'ModerationRequired' => 'Enum(\'None,Required,NonMembersOnly\',\'None\')', |
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99 | 'CommentsRequireLogin' => 'Boolean', |
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100 | ); |
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101 | |||
102 | /** |
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103 | * {@inheritDoc} |
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104 | */ |
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105 | private static $has_many = [ |
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0 ignored issues
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106 | 'Commments' => 'SilverStripe\\Comments\\Model\\Comment.Parent' |
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107 | ]; |
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108 | |||
109 | /** |
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110 | * CMS configurable options should default to the config values, but respect |
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111 | * default values specified by the object |
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112 | */ |
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113 | public function populateDefaults() |
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114 | { |
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115 | $defaults = $this->owner->config()->defaults; |
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116 | |||
117 | // Set if comments should be enabled by default |
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118 | if (isset($defaults['ProvideComments'])) { |
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119 | $this->owner->ProvideComments = $defaults['ProvideComments']; |
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120 | } else { |
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121 | $this->owner->ProvideComments = $this->owner->getCommentsOption('enabled') ? 1 : 0; |
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122 | } |
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123 | |||
124 | // If moderation options should be configurable via the CMS then |
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125 | if (isset($defaults['ModerationRequired'])) { |
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126 | $this->owner->ModerationRequired = $defaults['ModerationRequired']; |
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127 | } elseif ($this->owner->getCommentsOption('require_moderation')) { |
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128 | $this->owner->ModerationRequired = 'Required'; |
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129 | } elseif ($this->owner->getCommentsOption('require_moderation_nonmembers')) { |
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130 | $this->owner->ModerationRequired = 'NonMembersOnly'; |
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131 | } else { |
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132 | $this->owner->ModerationRequired = 'None'; |
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133 | } |
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134 | |||
135 | // Set login required |
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136 | if (isset($defaults['CommentsRequireLogin'])) { |
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137 | $this->owner->CommentsRequireLogin = $defaults['CommentsRequireLogin']; |
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138 | } else { |
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139 | $this->owner->CommentsRequireLogin = $this->owner->getCommentsOption('require_login') ? 1 : 0; |
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140 | } |
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141 | } |
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142 | |||
143 | |||
144 | /** |
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145 | * If this extension is applied to a {@link SiteTree} record then |
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146 | * append a Provide Comments checkbox to allow authors to trigger |
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147 | * whether or not to display comments |
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148 | * |
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149 | * @todo Allow customization of other {@link Commenting} configuration |
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150 | * |
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151 | * @param FieldList $fields |
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152 | */ |
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153 | public function updateSettingsFields(FieldList $fields) |
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154 | { |
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155 | $options = FieldGroup::create()->setTitle(_t('CommentsExtension.COMMENTOPTIONS', 'Comments')); |
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156 | |||
157 | // Check if enabled setting should be cms configurable |
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158 | if ($this->owner->getCommentsOption('enabled_cms')) { |
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159 | $options->push(new CheckboxField('ProvideComments', _t('Comment.ALLOWCOMMENTS', 'Allow Comments'))); |
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160 | } |
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161 | |||
162 | // Check if we should require users to login to comment |
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163 | if ($this->owner->getCommentsOption('require_login_cms')) { |
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164 | $options->push( |
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165 | new CheckboxField( |
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166 | 'CommentsRequireLogin', |
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167 | _t('Comments.COMMENTSREQUIRELOGIN', 'Require login to comment') |
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168 | ) |
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169 | ); |
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170 | } |
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171 | |||
172 | if ($options->FieldList()->count()) { |
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173 | if ($fields->hasTabSet()) { |
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174 | $fields->addFieldsToTab('Root.Settings', $options); |
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175 | } else { |
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176 | $fields->push($options); |
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177 | } |
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178 | } |
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179 | |||
180 | // Check if moderation should be enabled via cms configurable |
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181 | if ($this->owner->getCommentsOption('require_moderation_cms')) { |
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182 | $moderationField = new DropdownField('ModerationRequired', _t('CommentsExtension.COMMENTMODERATION', 'Comment Moderation'), array( |
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183 | 'None' => _t('CommentsExtension.MODERATIONREQUIRED_NONE', 'No moderation required'), |
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184 | 'Required' => _t('CommentsExtension.MODERATIONREQUIRED_REQUIRED', 'Moderate all comments'), |
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185 | 'NonMembersOnly' => _t( |
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186 | 'CommentsExtension.MODERATIONREQUIRED_NONMEMBERSONLY', |
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187 | 'Only moderate non-members' |
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188 | ), |
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189 | )); |
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190 | if ($fields->hasTabSet()) { |
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191 | $fields->addFieldsToTab('Root.Settings', $moderationField); |
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192 | } else { |
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193 | $fields->push($moderationField); |
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194 | } |
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195 | } |
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196 | } |
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197 | |||
198 | /** |
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199 | * Get comment moderation rules for this parent |
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200 | * |
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201 | * None: No moderation required |
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202 | * Required: All comments |
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203 | * NonMembersOnly: Only anonymous users |
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204 | * |
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205 | * @return string |
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206 | */ |
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207 | public function getModerationRequired() |
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208 | { |
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209 | if ($this->owner->getCommentsOption('require_moderation_cms')) { |
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210 | return $this->owner->getField('ModerationRequired'); |
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211 | } elseif ($this->owner->getCommentsOption('require_moderation')) { |
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212 | return 'Required'; |
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213 | } elseif ($this->owner->getCommentsOption('require_moderation_nonmembers')) { |
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214 | return 'NonMembersOnly'; |
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215 | } else { |
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216 | return 'None'; |
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217 | } |
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218 | } |
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219 | |||
220 | /** |
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221 | * Determine if users must be logged in to post comments |
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222 | * |
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223 | * @return boolean |
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224 | */ |
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225 | public function getCommentsRequireLogin() |
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226 | { |
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227 | if ($this->owner->getCommentsOption('require_login_cms')) { |
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228 | return (bool) $this->owner->getField('CommentsRequireLogin'); |
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229 | } else { |
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230 | return (bool) $this->owner->getCommentsOption('require_login'); |
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231 | } |
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232 | } |
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233 | |||
234 | /** |
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235 | * Returns the RelationList of all comments against this object. Can be used as a data source |
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236 | * for a gridfield with write access. |
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237 | * |
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238 | * @return DataList |
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239 | */ |
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240 | View Code Duplication | public function AllComments() |
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241 | { |
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242 | $order = $this->owner->getCommentsOption('order_comments_by'); |
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243 | $comments = Comment::get() |
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244 | ->filter('ParentID', $this->owner->ID) |
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245 | ->sort($order); |
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246 | $this->owner->extend('updateAllComments', $comments); |
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247 | return $comments; |
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248 | } |
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249 | |||
250 | /** |
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251 | * Returns all comments against this object, with with spam and unmoderated items excluded, for use in the frontend |
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252 | * |
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253 | * @return DataList |
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254 | */ |
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255 | public function AllVisibleComments() |
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256 | { |
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257 | $list = $this->AllComments(); |
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258 | |||
259 | // Filter spam comments for non-administrators if configured |
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260 | $showSpam = $this->owner->getCommentsOption('frontend_spam') && $this->owner->canModerateComments(); |
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261 | if (!$showSpam) { |
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262 | $list = $list->filter('IsSpam', 0); |
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263 | } |
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264 | |||
265 | // Filter un-moderated comments for non-administrators if moderation is enabled |
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266 | $showUnmoderated = ($this->owner->ModerationRequired === 'None') |
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267 | || ($this->owner->getCommentsOption('frontend_moderation') && $this->owner->canModerateComments()); |
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268 | if (!$showUnmoderated) { |
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269 | $list = $list->filter('Moderated', 1); |
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270 | } |
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271 | |||
272 | $this->owner->extend('updateAllVisibleComments', $list); |
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273 | return $list; |
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274 | } |
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275 | |||
276 | /** |
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277 | * Returns the root level comments, with spam and unmoderated items excluded, for use in the frontend |
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278 | * |
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279 | * @return DataList |
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280 | */ |
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281 | View Code Duplication | public function Comments() |
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282 | { |
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283 | $list = $this->AllVisibleComments(); |
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284 | |||
285 | // If nesting comments, only show root level |
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286 | if ($this->owner->getCommentsOption('nested_comments')) { |
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287 | $list = $list->filter('ParentCommentID', 0); |
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288 | } |
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289 | |||
290 | $this->owner->extend('updateComments', $list); |
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291 | return $list; |
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292 | } |
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293 | |||
294 | /** |
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295 | * Returns a paged list of the root level comments, with spam and unmoderated items excluded, |
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296 | * for use in the frontend |
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297 | * |
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298 | * @return PaginatedList |
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299 | */ |
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300 | View Code Duplication | public function PagedComments() |
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301 | { |
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302 | $list = $this->Comments(); |
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303 | |||
304 | // Add pagination |
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305 | $list = new PaginatedList($list, Controller::curr()->getRequest()); |
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306 | $list->setPaginationGetVar('commentsstart' . $this->owner->ID); |
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307 | $list->setPageLength($this->owner->getCommentsOption('comments_per_page')); |
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308 | |||
309 | $this->owner->extend('updatePagedComments', $list); |
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310 | return $list; |
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311 | } |
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312 | |||
313 | /** |
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314 | * Determine if comments are enabled for this instance |
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315 | * |
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316 | * @return boolean |
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317 | */ |
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318 | public function getCommentsEnabled() |
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319 | { |
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320 | // Don't display comments form for pseudo-pages (such as the login form) |
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321 | if (!$this->owner->exists()) { |
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322 | return false; |
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323 | } |
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324 | |||
325 | // Determine which flag should be used to determine if this is enabled |
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326 | if ($this->owner->getCommentsOption('enabled_cms')) { |
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327 | return $this->owner->ProvideComments; |
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328 | } else { |
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329 | return $this->owner->getCommentsOption('enabled'); |
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330 | } |
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331 | } |
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332 | |||
333 | /** |
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334 | * Get the HTML ID for the comment holder in the template |
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335 | * |
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336 | * @return string |
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337 | */ |
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338 | public function getCommentHolderID() |
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339 | { |
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340 | return $this->owner->getCommentsOption('comments_holder_id'); |
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341 | } |
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342 | |||
343 | /** |
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344 | * Permission codes required in order to post (or empty if none required) |
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345 | * |
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346 | * @return string|array Permission or list of permissions, if required |
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347 | */ |
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348 | public function getPostingRequiredPermission() |
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349 | { |
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350 | return $this->owner->getCommentsOption('required_permission'); |
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351 | } |
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352 | |||
353 | /** |
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354 | * Determine if a user can post comments on this item |
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355 | * |
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356 | * @param Member $member Member to check |
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357 | * |
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358 | * @return boolean |
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359 | */ |
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360 | public function canPostComment($member = null) |
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361 | { |
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362 | // Deny if not enabled for this object |
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363 | if (!$this->owner->CommentsEnabled) { |
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364 | return false; |
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365 | } |
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366 | |||
367 | if (!$this->owner->canView($member)) { |
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368 | // deny if current user cannot view the underlying record. |
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369 | return false; |
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370 | } |
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371 | |||
372 | // Check if member is required |
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373 | $requireLogin = $this->owner->CommentsRequireLogin; |
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374 | if (!$requireLogin) { |
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375 | return true; |
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376 | } |
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377 | |||
378 | // Check member is logged in |
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379 | $member = $member ?: Member::currentUser(); |
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380 | if (!$member) { |
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381 | return false; |
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382 | } |
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383 | |||
384 | // If member required check permissions |
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385 | $requiredPermission = $this->owner->PostingRequiredPermission; |
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386 | if ($requiredPermission && !Permission::checkMember($member, $requiredPermission)) { |
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387 | return false; |
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388 | } |
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389 | |||
390 | return true; |
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391 | } |
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392 | |||
393 | /** |
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394 | * Determine if this member can moderate comments in the CMS |
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395 | * |
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396 | * @param Member $member |
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397 | * |
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398 | * @return boolean |
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399 | */ |
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400 | public function canModerateComments($member = null) |
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401 | { |
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402 | // Deny if not enabled for this object |
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403 | if (!$this->owner->CommentsEnabled) { |
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404 | return false; |
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405 | } |
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406 | |||
407 | // Fallback to can-edit |
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408 | return $this->owner->canEdit($member); |
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409 | } |
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410 | |||
411 | /** |
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412 | * Gets the RSS link to all comments |
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413 | * |
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414 | * @return string |
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415 | */ |
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416 | public function getCommentRSSLink() |
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417 | { |
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418 | return Director::absoluteURL('comments/rss'); |
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419 | } |
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420 | |||
421 | /** |
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422 | * Get the RSS link to all comments on this page |
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423 | * |
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424 | * @return string |
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425 | */ |
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426 | public function getCommentRSSLinkPage() |
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427 | { |
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428 | return Controller::join_links( |
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429 | $this->getCommentRSSLink(), |
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430 | str_replace('\\', '-', $this->ownerBaseClass), |
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431 | $this->owner->ID |
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432 | ); |
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433 | } |
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434 | |||
435 | /** |
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436 | * Comments interface for the front end. Includes the CommentAddForm and the composition |
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437 | * of the comments display. |
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438 | * |
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439 | * To customize the html see templates/CommentInterface.ss or extend this function with |
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440 | * your own extension. |
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441 | * |
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442 | * @todo Cleanup the passing of all this configuration based functionality |
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443 | * |
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444 | * @see docs/en/Extending |
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445 | */ |
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446 | public function CommentsForm() |
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447 | { |
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448 | // Check if enabled |
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449 | $enabled = $this->getCommentsEnabled(); |
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450 | if ($enabled && $this->owner->getCommentsOption('include_js')) { |
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451 | $adminThirdPartyDir = ModuleLoader::getModule('silverstripe/admin')->getRelativePath() . '/thirdparty'; |
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452 | Requirements::javascript($adminThirdPartyDir . '/jquery/jquery.js'); |
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453 | Requirements::javascript($adminThirdPartyDir . '/jquery-entwine/dist/jquery.entwine-dist.js'); |
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454 | Requirements::javascript($adminThirdPartyDir . '/jquery-form/jquery.form.js'); |
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455 | Requirements::javascript(COMMENTS_THIRDPARTY . '/jquery-validate/jquery.validate.min.js'); |
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456 | Requirements::add_i18n_javascript('comments/javascript/lang'); |
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457 | Requirements::javascript('comments/javascript/CommentsInterface.js'); |
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458 | } |
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459 | |||
460 | $controller = CommentingController::create(); |
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461 | $controller->setOwnerRecord($this->owner); |
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462 | $controller->setParentClass($this->owner->getClassName()); |
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463 | $controller->setOwnerController(Controller::curr()); |
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464 | |||
465 | $session = Controller::curr()->getRequest()->getSession(); |
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466 | $moderatedSubmitted = $session->get('CommentsModerated'); |
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467 | $session->clear('CommentsModerated'); |
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468 | |||
469 | $form = ($enabled) ? $controller->CommentsForm() : false; |
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470 | |||
471 | // a little bit all over the show but to ensure a slightly easier upgrade for users |
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472 | // return back the same variables as previously done in comments |
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473 | return $this |
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474 | ->owner |
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475 | ->customise(array( |
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476 | 'AddCommentForm' => $form, |
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477 | 'ModeratedSubmitted' => $moderatedSubmitted, |
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478 | )) |
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479 | ->renderWith('CommentsInterface'); |
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480 | } |
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481 | |||
482 | /** |
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483 | * Returns whether this extension instance is attached to a {@link SiteTree} object |
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484 | * |
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485 | * @return bool |
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486 | */ |
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487 | public function attachedToSiteTree() |
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488 | { |
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489 | $class = $this->ownerBaseClass; |
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490 | |||
491 | return (is_subclass_of($class, SiteTree::class)) || ($class == SiteTree::class); |
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492 | } |
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493 | |||
494 | /** |
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495 | * Get the commenting option for this object |
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496 | * |
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497 | * This can be overridden in any instance or extension to customise the option available |
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498 | * |
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499 | * @param string $key |
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500 | * |
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501 | * @return mixed Result if the setting is available, or null otherwise |
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502 | */ |
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503 | public function getCommentsOption($key) |
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504 | { |
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505 | $settings = $this->owner // In case singleton is called on the extension directly |
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506 | ? $this->owner->config()->comments |
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507 | : Config::inst()->get(__CLASS__, 'comments'); |
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508 | $value = null; |
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509 | if (isset($settings[$key])) { |
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510 | $value = $settings[$key]; |
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511 | } |
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512 | |||
513 | // To allow other extensions to customise this option |
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514 | if ($this->owner) { |
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515 | $this->owner->extend('updateCommentsOption', $key, $value); |
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516 | } |
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517 | return $value; |
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518 | } |
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519 | |||
520 | /** |
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521 | * Add moderation functions to the current fieldlist |
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522 | * |
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523 | * @param FieldList $fields |
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524 | */ |
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525 | protected function updateModerationFields(FieldList $fields) |
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526 | { |
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527 | Requirements::css(COMMENTS_DIR . '/css/cms.css'); |
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528 | |||
529 | $newComments = $this->owner->AllComments()->filter('Moderated', 0); |
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530 | |||
531 | $newGrid = new CommentsGridField( |
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532 | 'NewComments', |
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533 | _t('CommentsAdmin.NewComments', 'New'), |
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534 | $newComments, |
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535 | CommentsGridFieldConfig::create() |
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536 | ); |
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537 | |||
538 | $approvedComments = $this->owner->AllComments()->filter('Moderated', 1)->filter('IsSpam', 0); |
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539 | |||
540 | $approvedGrid = new CommentsGridField( |
||
541 | 'ApprovedComments', |
||
542 | _t('CommentsAdmin.Comments', 'Approved'), |
||
543 | $approvedComments, |
||
544 | CommentsGridFieldConfig::create() |
||
545 | ); |
||
546 | |||
547 | $spamComments = $this->owner->AllComments()->filter('Moderated', 1)->filter('IsSpam', 1); |
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548 | |||
549 | $spamGrid = new CommentsGridField( |
||
550 | 'SpamComments', |
||
551 | _t('CommentsAdmin.SpamComments', 'Spam'), |
||
552 | $spamComments, |
||
553 | CommentsGridFieldConfig::create() |
||
554 | ); |
||
555 | |||
556 | $newCount = '(' . count($newComments) . ')'; |
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557 | $approvedCount = '(' . count($approvedComments) . ')'; |
||
558 | $spamCount = '(' . count($spamComments) . ')'; |
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559 | |||
560 | if ($fields->hasTabSet()) { |
||
561 | $tabs = new TabSet( |
||
562 | 'Comments', |
||
563 | new Tab('CommentsNewCommentsTab', _t('CommentAdmin.NewComments', 'New') . ' ' . $newCount, |
||
564 | $newGrid |
||
565 | ), |
||
566 | new Tab('CommentsCommentsTab', _t('CommentAdmin.Comments', 'Approved') . ' ' . $approvedCount, |
||
567 | $approvedGrid |
||
568 | ), |
||
569 | new Tab('CommentsSpamCommentsTab', _t('CommentAdmin.SpamComments', 'Spam') . ' ' . $spamCount, |
||
570 | $spamGrid |
||
571 | ) |
||
572 | ); |
||
573 | $fields->addFieldToTab('Root', $tabs); |
||
574 | } else { |
||
575 | $fields->push($newGrid); |
||
576 | $fields->push($approvedGrid); |
||
577 | $fields->push($spamGrid); |
||
578 | } |
||
579 | } |
||
580 | |||
581 | public function updateCMSFields(FieldList $fields) |
||
582 | { |
||
583 | // Disable moderation if not permitted |
||
584 | if ($this->owner->canModerateComments()) { |
||
585 | $this->updateModerationFields($fields); |
||
586 | } |
||
587 | |||
588 | // If this isn't a page we should merge the settings into the CMS fields |
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589 | if (!$this->attachedToSiteTree()) { |
||
590 | $this->updateSettingsFields($fields); |
||
591 | } |
||
592 | } |
||
593 | } |
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594 |
This check marks private properties in classes that are never used. Those properties can be removed.