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<?php |
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declare(strict_types=1); |
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namespace MySociety\TheyWorkForYou\DataClass; |
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class Cell { |
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public string $key; |
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public $value; |
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public function getValue() { |
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return $this->value; |
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} |
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} |
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class Row { |
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/** @var Cell[] $cells */ |
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public array $cells = []; |
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public function __construct(array $data) { |
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foreach ($data as $key => $value) { |
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$cell = new Cell(); |
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$cell->key = (string) $key; |
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$cell->value = $value; |
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$this->cells[$key] = $cell; |
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} |
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} |
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public function get(string $column) { |
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$cell = $this->cells[$column] ?? null; |
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return $cell ? $cell->getValue() : null; |
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} |
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public function toArray(): array { |
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$array = []; |
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foreach ($this->cells as $cell) { |
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$array[$cell->key] = $cell->value; |
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} |
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return $array; |
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} |
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} |
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class DataFrame { |
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/** |
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* @var Row[] $rows An array of Row objects |
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* @var string[] $columns An array of strings representing column names |
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*/ |
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public array $rows = []; |
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public array $columns = []; |
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public function __construct(array $data) { |
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/** |
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* Accepts an array of associative arrays, where each associative array represents a row in the DataFrame. |
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* From this extract the column names and create a Row object for each row. |
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*/ |
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foreach ($data as $rowData) { |
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// update the columns with any new keys in each row |
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$this->columns = array_unique(array_merge($this->columns, array_keys($rowData))); |
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// make sure all columns are strings rather than ints |
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$this->rows[] = new Row($rowData); |
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} |
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} |
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public function toArray(): array { |
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return array_map(fn($row) => $row->toArray(), $this->rows); |
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} |
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public function toHTML(?string $url_column = null): string { |
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// Generate a HTML table from the DataFrame |
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$html = '<div style="overflow-x: auto; white-space: nowrap;">'; |
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$html .= '<table class="df-table">'; |
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// Add table headers |
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$html .= '<tr class="df-row">'; |
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foreach ($this->columns as $column) { |
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if ($url_column === $column) { |
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continue; |
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} |
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$html .= '<th class="df-header">' . htmlspecialchars($column) . '</th>'; |
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} |
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$html .= '</tr>'; |
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// Add table rows |
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foreach ($this->rows as $row) { |
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$url_value = $url_column ? $row->get($url_column) : null; |
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$html .= '<tr class="df-row">'; |
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foreach ($this->columns as $index => $column) { |
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if ($url_column === $column) { |
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continue; |
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} |
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$raw_cell_value = $row->get($column); |
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$cell_value = htmlspecialchars((string) $raw_cell_value); |
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$data_classes = ['df-data']; |
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if (is_numeric($raw_cell_value)) { |
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$data_classes[] = 'df-data--number'; |
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} |
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if ($url_value && $index === 0) { |
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// wrap first value in url |
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$cell_value = '<a href="' . $url_value . '">' . $cell_value . '</a>'; |
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} |
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$html .= '<td class="' . implode(' ', $data_classes) . '">' . $cell_value . '</td>'; |
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} |
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$html .= '</tr>'; |
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} |
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$html .= '</table>'; |
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$html .= '</div>'; |
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return $html; |
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} |
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} |
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mysociety /
theyworkforyou
