src/Persistence/Sql/Query.php

Summary

Maintainability
F
6 days
Test Coverage

File Query.php has 731 lines of code (exceeds 250 allowed). Consider refactoring.
Open

<?php

declare(strict_types=1);

namespace Atk4\Data\Persistence\Sql;
Severity: Major
Found in src/Persistence/Sql/Query.php - About 1 day to fix

Query has 54 functions (exceeds 20 allowed). Consider refactoring.
Open

abstract class Query extends Expression
{
    private const FIELD_INT_STRING_PREFIX = "\xff_int-string_";

    /** Template name for render. */
Severity: Major
Found in src/Persistence/Sql/Query.php - About 7 hrs to fix

Function _subrenderCondition has a Cognitive Complexity of 38 (exceeds 5 allowed). Consider refactoring.
Open

    protected function _subrenderCondition(array $row): string
    {
        if (count($row) === 1) {
            [$field] = $row;
        } elseif (count($row) === 3) {
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 5 hrs to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Method _subrenderCondition has 68 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    protected function _subrenderCondition(array $row): string
    {
        if (count($row) === 1) {
            [$field] = $row;
        } elseif (count($row) === 3) {
Severity: Major
Found in src/Persistence/Sql/Query.php - About 2 hrs to fix

Function join has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.
Open

    public function join(
        $foreignTable,
        $masterField = null,
        $joinKind = null,
        $foreignAlias = null
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 2 hrs to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function where has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.
Open

    public function where($field, $operator = null, $value = null, $kind = 'where', $numArgs = null)
    {
        // number of passed arguments will be used to determine if arguments were specified or not
        if ($numArgs === null) {
            $numArgs = 'func_num_args'();
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function _renderConditionBinaryReuse has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
Open

    protected function _renderConditionBinaryReuse(
        string $sqlLeft,
        string $sqlRight,
        \Closure $makeSqlFx,
        bool $allowReuseLeft = true,
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function _renderCase has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
Open

    protected function _renderCase(): ?string
    {
        if (!isset($this->args['case_when'])) {
            return null;
        }
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Method join has 38 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    public function join(
        $foreignTable,
        $masterField = null,
        $joinKind = null,
        $foreignAlias = null
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Function _renderField has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
Open

    protected function _renderField($addAlias = true): string
    {
        // if no fields were defined, use defaultField
        if (($this->args['field'] ?? []) === []) {
            if ($this->defaultField instanceof Expression) {
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function order has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
Open

    public function order($order, $direction = null)
    {
        if (is_string($order) && str_contains($order, ',')) {
            throw new Exception('Comma-separated fields list is no longer accepted, use array instead');
        }
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Method _renderConditionBinaryReuse has 32 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    protected function _renderConditionBinaryReuse(
        string $sqlLeft,
        string $sqlRight,
        \Closure $makeSqlFx,
        bool $allowReuseLeft = true,
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Function _renderTable has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
Open

    protected function _renderTable($addAlias = true): ?string
    {
        $res = [];
        foreach ($this->args['table'] ?? [] as $alias => $table) {
            if ($addAlias === false && $table instanceof self) {
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Method where has 31 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    public function where($field, $operator = null, $value = null, $kind = 'where', $numArgs = null)
    {
        // number of passed arguments will be used to determine if arguments were specified or not
        if ($numArgs === null) {
            $numArgs = 'func_num_args'();
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Method _renderCase has 29 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    protected function _renderCase(): ?string
    {
        if (!isset($this->args['case_when'])) {
            return null;
        }
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Function _setArgs has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
Open

    protected function _setArgs(string $kind, ?string $alias, $value): void
    {
        if ($alias === null) {
            $this->args[$kind][] = $value;
        } else {
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Method order has 26 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    public function order($order, $direction = null)
    {
        if (is_string($order) && str_contains($order, ',')) {
            throw new Exception('Comma-separated fields list is no longer accepted, use array instead');
        }
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 1 hr to fix

Method _renderConditionBinaryReuse has 6 arguments (exceeds 4 allowed). Consider refactoring.
Open

        string $sqlLeft,
        string $sqlRight,
        \Closure $makeSqlFx,
        bool $allowReuseLeft = true,
        bool $allowReuseRight = true,
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 45 mins to fix

Method where has 5 arguments (exceeds 4 allowed). Consider refactoring.
Open

    public function where($field, $operator = null, $value = null, $kind = 'where', $numArgs = null)
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 35 mins to fix

Avoid too many return statements within this method.
Open

                    return '1 = 1'; // always true
Severity: Major
Found in src/Persistence/Sql/Query.php - About 30 mins to fix

Avoid too many return statements within this method.
Open

                return $this->_renderConditionBinary($operator, $field, $values);
Severity: Major
Found in src/Persistence/Sql/Query.php - About 30 mins to fix

Avoid too many return statements within this method.
Open

            return $this->_renderConditionRegexpOperator($operator === 'not regexp', $field, $value);
Severity: Major
Found in src/Persistence/Sql/Query.php - About 30 mins to fix

Avoid too many return statements within this method.
Open

            return $this->_renderConditionLikeOperator($operator === 'not like', $field, $value);
Severity: Major
Found in src/Persistence/Sql/Query.php - About 30 mins to fix

Avoid too many return statements within this method.
Open

        return $this->_renderConditionBinary($operator, $field, $value);
Severity: Major
Found in src/Persistence/Sql/Query.php - About 30 mins to fix

Function _renderWith has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
Open

    protected function _renderWith(): ?string
    {
        if (($this->args['with'] ?? []) === []) {
            return '';
        }
Severity: Minor
Found in src/Persistence/Sql/Query.php - About 25 mins to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

    protected function _renderOrwhere(): ?string
    {
        if (isset($this->args['where']) && isset($this->args['having'])) {
            throw new Exception('Mixing of WHERE and HAVING conditions not allowed in query expression');
        }
Severity: Minor
Found in src/Persistence/Sql/Query.php and 1 other location - About 35 mins to fix
src/Persistence/Sql/Query.php on lines 699..712

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 92.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

    protected function _renderAndwhere(): ?string
    {
        if (isset($this->args['where']) && isset($this->args['having'])) {
            throw new Exception('Mixing of WHERE and HAVING conditions not allowed in query expression');
        }
Severity: Minor
Found in src/Persistence/Sql/Query.php and 1 other location - About 35 mins to fix
src/Persistence/Sql/Query.php on lines 684..697

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 92.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

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