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<?php |
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/** |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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namespace Ytake\LaravelCouchbase\Query; |
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use Illuminate\Database\Query\Builder; |
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use Ytake\LaravelCouchbase\Query\Builder as QueryBuilder; |
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use Illuminate\Database\Query\Grammars\Grammar as IlluminateGrammar; |
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/** |
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* Class Grammar. |
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* |
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* @author Yuuki Takezawa<[email protected]> |
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*/ |
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class Grammar extends IlluminateGrammar |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function wrapValue($value) |
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{ |
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if ($value === '*') { |
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return $value; |
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} |
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return $value; |
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} |
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/** |
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* @param $value |
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* |
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* @return string |
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*/ |
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protected function wrapKey($value) |
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{ |
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if (is_null($value)) { |
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return; |
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} |
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return '"' . str_replace('"', '""', $value) . '"'; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* notice: supported set query only |
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*/ |
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public function compileUpdate(Builder $query, $values) |
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{ |
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// keyspace-ref: |
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$table = $this->wrapTable($query->from); |
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// use-keys-clause: |
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$keyClause = $this->wrapKey($query->key); |
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// returning-clause |
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$returning = implode(', ', $query->returning); |
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$columns = []; |
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foreach ($values as $key => $value) { |
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$columns[] = $this->wrap($key) . ' = ' . $this->parameter($value); |
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} |
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$columns = implode(', ', $columns); |
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$joins = ''; |
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if (isset($query->joins)) { |
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$joins = ' ' . $this->compileJoins($query, $query->joins); |
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} |
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$where = $this->compileWheres($query); |
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return trim("update {$table} USE KEYS {$keyClause} {$joins} set $columns $where RETURNING {$returning}"); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function compileInsert(Builder $query, array $values) |
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{ |
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// keyspace-ref: |
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$table = $this->wrapTable($query->from); |
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// use-keys-clause: |
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$keyClause = $this->wrapKey($query->key); |
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// returning-clause |
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$returning = implode(', ', $query->returning); |
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if (!is_array(reset($values))) { |
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$values = [$values]; |
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} |
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$parameters = []; |
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foreach ($values as $record) { |
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$parameters[] = '(' . $this->parameterize($record) . ')'; |
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} |
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$parameters = (!$keyClause) ? implode(', ', $parameters) : "({$keyClause}, \$parameters)"; |
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$keyValue = (!$keyClause) ? null : '(KEY, VALUE)'; |
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return "insert into {$table} {$keyValue} values $parameters RETURNING {$returning}"; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @see http://developer.couchbase.com/documentation/server/4.1/n1ql/n1ql-language-reference/delete.html |
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*/ |
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public function compileDelete(Builder $query) |
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{ |
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// keyspace-ref: |
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$table = $this->wrapTable($query->from); |
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// use-keys-clause: |
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$keyClause = null; |
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if ($query->key) { |
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$key = $this->wrapKey($query->key); |
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$keyClause = "USE KEYS {$key}"; |
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} |
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// returning-clause |
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$returning = implode(', ', $query->returning); |
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$where = is_array($query->wheres) ? $this->compileWheres($query) : ''; |
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return trim("delete from {$table} {$keyClause} {$where} RETURNING {$returning}"); |
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} |
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/** |
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* @param QueryBuilder $query |
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* @param array $values |
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* |
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* @return string |
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*/ |
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public function compileUpsert(QueryBuilder $query, array $values) |
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{ |
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// keyspace-ref: |
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$table = $this->wrapTable($query->from); |
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// use-keys-clause: |
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$keyClause = $this->wrapKey($query->key); |
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// returning-clause |
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$returning = implode(', ', $query->returning); |
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if (!is_array(reset($values))) { |
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$values = [$values]; |
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} |
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$parameters = []; |
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foreach ($values as $record) { |
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$parameters[] = '(' . $this->parameterize($record) . ')'; |
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} |
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$parameters = (!$keyClause) ? implode(', ', $parameters) : "({$keyClause}, \$parameters)"; |
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$keyValue = (!$keyClause) ? null : '(KEY, VALUE)'; |
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return "UPSERT INTO {$table} {$keyValue} VALUES $parameters RETURNING {$returning}"; |
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} |
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} |
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Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: