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Code Duplication    Length = 5-5 lines in 3 locations

src/Pipeline.php 1 location

@@ 67-71 (lines=5) @@
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            call_user_func($expressionConfigurator, $expression);
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        }
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        if ($expression instanceof Expression) {
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            $expression = $expression->toArray();
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        } elseif (!is_array($expression)) {
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            throw new Exception('Must be array, callable or instance of \Sokil\Mongo\Expression');
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        }
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        $this->addStage('$match', $expression);
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        return $this;

src/Operator.php 1 location

@@ 280-284 (lines=5) @@
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            call_user_func($configurator, $expression);
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        }
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        if ($expression instanceof Expression) {
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            $expression = $expression->toArray();
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        } elseif (!is_array($expression)) {
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            throw new \InvalidArgumentException('Expression must be field name, callable or Expression object');
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        }
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        if (!isset($this->operators['$pull'])) {
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            // no $pull operator found

src/Expression.php 1 location

@@ 283-287 (lines=5) @@
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            $expression = call_user_func($expression, $this->expression());
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        }
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        if ($expression instanceof Expression) {
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            $expression = $expression->toArray();
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        } elseif (!is_array($expression)) {
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            throw new Exception('Wrong expression passed');
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        }
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        return $this->where($field, array('$elemMatch' => $expression));
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    }