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Boostport/migration

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driver/phoenix/phoenix.go

Summary

Maintainability
B
5 hrs
Test Coverage

Similar blocks of code found in 4 locations. Consider refactoring.
Open

func (driver *Driver) Versions() ([]string, error) {
    var versions []string

    rows, err := driver.db.Query("SELECT version FROM " + phoenixTableName + " ORDER BY version DESC")
    if err != nil {
Severity: Major
Found in driver/phoenix/phoenix.go and 3 other locations - About 1 hr to fix
driver/mysql/mysql.go on lines 112..136
driver/postgres/postgres.go on lines 125..148
driver/sqlite/sqlite.go on lines 135..161

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 184.

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 4 locations. Consider refactoring.
Open

func NewFromDB(db *sql.DB) (m.Driver, error) {
    if _, ok := db.Driver().(*avatica.Driver); !ok {
        return nil, errors.New("database instance is not using the avatica driver")
    }
Severity: Major
Found in driver/phoenix/phoenix.go and 3 other locations - About 1 hr to fix
driver/mysql/mysql.go on lines 48..64
driver/postgres/postgres.go on lines 42..58
driver/sqlite/sqlite.go on lines 48..66

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 153.

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

func New(dsn string) (m.Driver, error) {
    db, err := sql.Open("avatica", dsn)
    if err != nil {
        return nil, err
    }
Severity: Major
Found in driver/phoenix/phoenix.go and 1 other location - About 1 hr to fix
driver/postgres/postgres.go on lines 22..39

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 134.

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

    if migration.Direction == m.Up {
        if _, err := driver.db.Exec("UPSERT INTO "+phoenixTableName+" (version) VALUES (?)", migration.ID); err != nil {
            return err
        }
    } else {
Severity: Minor
Found in driver/phoenix/phoenix.go and 1 other location - About 40 mins to fix
driver/mysql/mysql.go on lines 98..106

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 111.

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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