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<?php |
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namespace Lagdo\DbAdmin\Db\Traits; |
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use Lagdo\DbAdmin\Driver\Entity\TableFieldEntity; |
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trait SelectQueryTrait |
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{ |
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/** |
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* Filter length value including enums |
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* |
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* @param string $length |
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* |
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* @return string |
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*/ |
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public function processLength(string $length): string |
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{ |
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if (!$length) { |
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return ''; |
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} |
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$enumLength = $this->driver->enumLength(); |
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return (\preg_match("~^\\s*\\(?\\s*$enumLength(?:\\s*,\\s*$enumLength)*+\\s*\\)?\\s*\$~", $length) && |
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\preg_match_all("~$enumLength~", $length, $matches) ? '(' . \implode(',', $matches[0]) . ')' : |
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\preg_replace('~^[0-9].*~', '(\0)', \preg_replace('~[^-0-9,+()[\]]~', '', $length)) |
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); |
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} |
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/** |
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* Create SQL string from field type |
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* |
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* @param TableFieldEntity $field |
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* @param string $collate |
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* |
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* @return string |
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*/ |
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private function processType(TableFieldEntity $field, string $collate = 'COLLATE'): string |
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{ |
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$values = [ |
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'unsigned' => $field->unsigned, |
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'collation' => $field->collation, |
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]; |
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return ' ' . $field->type . $this->processLength($field->length) . |
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(\preg_match($this->driver->numberRegex(), $field->type) && |
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\in_array($values['unsigned'], $this->driver->unsigned()) ? |
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" {$values['unsigned']}" : '') . (\preg_match('~char|text|enum|set~', $field->type) && |
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$values['collation'] ? " $collate " . $this->driver->quote($values['collation']) : ''); |
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} |
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/** |
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* Create SQL string from field |
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* |
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* @param TableFieldEntity $field Basic field information |
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* @param TableFieldEntity $typeField Information about field type |
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* |
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* @return array |
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*/ |
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public function processField(TableFieldEntity $field, TableFieldEntity $typeField): array |
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{ |
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return [ |
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$this->driver->escapeId(trim($field->name)), |
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$this->processType($typeField), |
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($field->null ? ' NULL' : ' NOT NULL'), // NULL for timestamp |
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$this->driver->defaultValue($field), |
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(\preg_match('~timestamp|datetime~', $field->type) && $field->onUpdate ? |
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" ON UPDATE {$field->onUpdate}" : ''), |
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($this->driver->support('comment') && $field->comment != '' ? |
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' COMMENT ' . $this->driver->quote($field->comment) : ''), |
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($field->autoIncrement ? $this->driver->autoIncrement() : null), |
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]; |
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} |
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/** |
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* Apply SQL function |
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* |
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* @param string $function |
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* @param string $column escaped column identifier |
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* |
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* @return string |
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*/ |
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public function applySqlFunction(string $function, string $column) |
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{ |
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return ($function ? ($function == 'unixepoch' ? |
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"DATETIME($column, '$function')" : ($function == 'count distinct' ? |
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'COUNT(DISTINCT ' : strtoupper("$function(")) . "$column)") : $column); |
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} |
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/** |
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* Process columns box in select |
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* |
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* @return array |
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*/ |
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public function processSelectColumns(): array |
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{ |
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$select = []; // select expressions, empty for * |
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$group = []; // expressions without aggregation - will be used for GROUP BY if an aggregation function is used |
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foreach ((array) $this->input->values['columns'] as $key => $val) { |
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if ($val['fun'] == 'count' || |
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($val['col'] != '' && (!$val['fun'] || |
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\in_array($val['fun'], $this->driver->functions()) || |
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\in_array($val['fun'], $this->driver->grouping())))) { |
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$select[$key] = $this->applySqlFunction( |
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$val['fun'], |
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($val['col'] != '' ? $this->driver->escapeId($val['col']) : '*') |
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); |
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if (!in_array($val['fun'], $this->driver->grouping())) { |
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$group[] = $select[$key]; |
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} |
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} |
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} |
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return [$select, $group]; |
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} |
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/** |
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* Process search box in select |
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* |
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* @param array $fields |
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* @param array $indexes |
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* |
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* @return array |
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*/ |
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public function processSelectSearch(array $fields, array $indexes): array |
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{ |
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$expressions = []; |
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foreach ($indexes as $i => $index) { |
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if ($index->type == 'FULLTEXT' && $this->input->values['fulltext'][$i] != '') { |
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$columns = \array_map(function ($column) { |
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return $this->driver->escapeId($column); |
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}, $index->columns); |
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$expressions[] = 'MATCH (' . \implode(', ', $columns) . ') AGAINST (' . |
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$this->driver->quote($this->input->values['fulltext'][$i]) . |
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(isset($this->input->values['boolean'][$i]) ? ' IN BOOLEAN MODE' : '') . ')'; |
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} |
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} |
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foreach ((array) $this->input->values['where'] as $key => $val) { |
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if ("$val[col]$val[val]" != '' && in_array($val['op'], $this->driver->operators())) { |
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$prefix = ''; |
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$cond = " $val[op]"; |
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if (\preg_match('~IN$~', $val['op'])) { |
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$in = $this->processLength($val['val']); |
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$cond .= ' ' . ($in != '' ? $in : '(NULL)'); |
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} elseif ($val['op'] == 'SQL') { |
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$cond = " $val[val]"; // SQL injection |
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} elseif ($val['op'] == 'LIKE %%') { |
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$cond = ' LIKE ' . $this->_processInput($fields[$val['col']], "%$val[val]%"); |
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} elseif ($val['op'] == 'ILIKE %%') { |
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$cond = ' ILIKE ' . $this->_processInput($fields[$val['col']], "%$val[val]%"); |
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} elseif ($val['op'] == 'FIND_IN_SET') { |
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$prefix = "$val[op](" . $this->driver->quote($val['val']) . ', '; |
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$cond = ')'; |
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} elseif (!\preg_match('~NULL$~', $val['op'])) { |
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$cond .= ' ' . $this->_processInput($fields[$val['col']], $val['val']); |
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} |
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if ($val['col'] != '') { |
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$expressions[] = $prefix . $this->driver->convertSearch( |
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$this->driver->escapeId($val['col']), |
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$val, |
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$fields[$val['col']] |
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) . $cond; |
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} else { |
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// find anywhere |
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$cols = []; |
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foreach ($fields as $name => $field) { |
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if ((\preg_match('~^[-\d.' . (\preg_match('~IN$~', $val['op']) ? ',' : '') . ']+$~', $val['val']) || |
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!\preg_match('~' . $this->driver->numberRegex() . '|bit~', $field->type)) && |
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(!\preg_match("~[\x80-\xFF]~", $val['val']) || \preg_match('~char|text|enum|set~', $field->type)) && |
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(!\preg_match('~date|timestamp~', $field->type) || \preg_match('~^\d+-\d+-\d+~', $val['val'])) |
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) { |
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$cols[] = $prefix . $this->driver->convertSearch($this->driver->escapeId($name), $val, $field) . $cond; |
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} |
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} |
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$expressions[] = ($cols ? '(' . \implode(' OR ', $cols) . ')' : '1 = 0'); |
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} |
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} |
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} |
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return $expressions; |
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} |
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/** |
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* Process order box in select |
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* |
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* @return array |
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*/ |
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public function processSelectOrder(): array |
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{ |
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$expressions = []; |
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foreach ((array) $this->input->values['order'] as $key => $val) { |
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if ($val != '') { |
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$regexp = '~^((COUNT\(DISTINCT |[A-Z0-9_]+\()(`(?:[^`]|``)+`|"(?:[^"]|"")+")\)|COUNT\(\*\))$~'; |
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$expressions[] = (\preg_match($regexp, $val) ? $val : $this->driver->escapeId($val)) . //! MS SQL uses [] |
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(isset($this->input->values['desc'][$key]) ? ' DESC' : ''); |
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} |
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} |
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return $expressions; |
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} |
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/** |
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* Process limit box in select |
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* |
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* @return int |
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*/ |
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public function processSelectLimit(): int |
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{ |
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return (isset($this->input->values['limit']) ? intval($this->input->values['limit']) : 50); |
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} |
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/** |
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* Process length box in select |
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* |
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* @return int |
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*/ |
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public function processSelectLength(): int |
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{ |
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return (isset($this->input->values['text_length']) ? intval($this->input->values['text_length']) : 100); |
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} |
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/** |
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* Process extras in select form |
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* |
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* @param array $where AND conditions |
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* @param array $foreignKeys |
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* |
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* @return bool |
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*/ |
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// public function processSelectEmail(array $where, array $foreignKeys) |
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// { |
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// return false; |
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// } |
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} |
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lagdo /
jaxon-dbadmin
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