yiisoft/yii2

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framework/db/Migration.php

Summary

Maintainability
C
7 hrs
Test Coverage

The class Migration has 29 public methods. Consider refactoring Migration to keep number of public methods under 10.
Open

class Migration extends Component implements MigrationInterface
{
    use SchemaBuilderTrait;

    /**
Severity: Minor
Found in framework/db/Migration.php by phpmd

TooManyPublicMethods

Since: 0.1

A class with too many public methods is probably a good suspect for refactoring, in order to reduce its complexity and find a way to have more fine grained objects.

By default it ignores methods starting with 'get' or 'set'.

Example

Source https://phpmd.org/rules/codesize.html#toomanypublicmethods

The class Migration has an overall complexity of 51 which is very high. The configured complexity threshold is 50.
Open

class Migration extends Component implements MigrationInterface
{
    use SchemaBuilderTrait;

    /**
Severity: Minor
Found in framework/db/Migration.php by phpmd

The class Migration has 32 non-getter- and setter-methods. Consider refactoring Migration to keep number of methods under 25.
Open

class Migration extends Component implements MigrationInterface
{
    use SchemaBuilderTrait;

    /**
Severity: Minor
Found in framework/db/Migration.php by phpmd

TooManyMethods

Since: 0.1

A class with too many methods is probably a good suspect for refactoring, in order to reduce its complexity and find a way to have more fine grained objects.

By default it ignores methods starting with 'get' or 'set'.

The default was changed from 10 to 25 in PHPMD 2.3.

Example

Source https://phpmd.org/rules/codesize.html#toomanymethods

Method addForeignKey has 7 arguments (exceeds 4 allowed). Consider refactoring.
Open

    public function addForeignKey($name, $table, $columns, $refTable, $refColumns, $delete = null, $update = null)
Severity: Major
Found in framework/db/Migration.php - About 50 mins to fix

    The method createIndex has a boolean flag argument $unique, which is a certain sign of a Single Responsibility Principle violation.
    Open

        public function createIndex($name, $table, $columns, $unique = false)
    Severity: Minor
    Found in framework/db/Migration.php by phpmd

    BooleanArgumentFlag

    Since: 1.4.0

    A boolean flag argument is a reliable indicator for a violation of the Single Responsibility Principle (SRP). You can fix this problem by extracting the logic in the boolean flag into its own class or method.

    Example

    class Foo {
        public function bar($flag = true) {
        }
    }

    Source https://phpmd.org/rules/cleancode.html#booleanargumentflag

    The method upsert has a boolean flag argument $updateColumns, which is a certain sign of a Single Responsibility Principle violation.
    Open

        public function upsert($table, $insertColumns, $updateColumns = true, $params = [])
    Severity: Minor
    Found in framework/db/Migration.php by phpmd

    BooleanArgumentFlag

    Since: 1.4.0

    A boolean flag argument is a reliable indicator for a violation of the Single Responsibility Principle (SRP). You can fix this problem by extracting the logic in the boolean flag into its own class or method.

    Example

    class Foo {
        public function bar($flag = true) {
        }
    }

    Source https://phpmd.org/rules/cleancode.html#booleanargumentflag

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

        public function alterColumn($table, $column, $type)
        {
            $time = $this->beginCommand("alter column $column in table $table to $type");
            $this->db->createCommand()->alterColumn($table, $column, $type)->execute();
            if ($type instanceof ColumnSchemaBuilder && $type->comment !== null) {
    Severity: Major
    Found in framework/db/Migration.php and 1 other location - About 1 hr to fix
    framework/db/Migration.php on lines 373..381

    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 116.

    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

        public function addColumn($table, $column, $type)
        {
            $time = $this->beginCommand("add column $column $type to table $table");
            $this->db->createCommand()->addColumn($table, $column, $type)->execute();
            if ($type instanceof ColumnSchemaBuilder && $type->comment !== null) {
    Severity: Major
    Found in framework/db/Migration.php and 1 other location - About 1 hr to fix
    framework/db/Migration.php on lines 416..424

    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 116.

    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

        public function down()
        {
            $transaction = $this->db->beginTransaction();
            try {
                if ($this->safeDown() === false) {
    Severity: Major
    Found in framework/db/Migration.php and 1 other location - About 1 hr to fix
    framework/db/Migration.php on lines 110..130

    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 114.

    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

        public function up()
        {
            $transaction = $this->db->beginTransaction();
            try {
                if ($this->safeUp() === false) {
    Severity: Major
    Found in framework/db/Migration.php and 1 other location - About 1 hr to fix
    framework/db/Migration.php on lines 139..159

    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 114.

    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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