1 | <?php |
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2 | /** |
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3 | * Abstract argument handler for simple formulae. |
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4 | * |
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5 | * Child classes of this object should implement summary_argument, at least. |
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6 | * |
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7 | * Definition terms: |
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8 | * - formula: The formula to use for this handler. |
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9 | * |
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10 | * @ingroup views_argument_handlers |
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11 | */ |
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12 | class views_handler_argument_formula extends views_handler_argument { |
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13 | var $formula = NULL; |
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14 | /** |
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15 | * Constructor |
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16 | */ |
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17 | function construct() { |
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18 | parent::construct(); |
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19 | |
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20 | if (!empty($this->definition['formula'])) { |
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21 | $this->formula = $this->definition['formula']; |
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22 | } |
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23 | } |
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24 | |
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25 | function get_formula() { |
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26 | return str_replace('***table***', $this->table_alias, $this->formula); |
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27 | } |
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28 | |
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29 | /** |
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30 | * Build the summary query based on a formula |
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31 | */ |
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32 | function summary_query() { |
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33 | $this->ensure_my_table(); |
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34 | // Now that our table is secure, get our formula. |
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35 | $formula = $this->get_formula(); |
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36 | |
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37 | // Add the field. |
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38 | $this->base_alias = $this->name_alias = $this->query->add_field(NULL, $formula, $this->field); |
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39 | $this->query->set_count_field(NULL, $formula, $this->field); |
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40 | |
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41 | return $this->summary_basics(FALSE); |
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42 | } |
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43 | |
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44 | /** |
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45 | * Build the query based upon the formula |
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46 | */ |
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47 | function query() { |
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48 | $this->ensure_my_table(); |
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49 | // Now that our table is secure, get our formula. |
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50 | $formula = $this->get_formula(); |
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51 | |
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52 | $this->query->add_where(0, "$formula = '%s'", $this->argument); |
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53 | } |
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54 | } |
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