bcit-ci/CodeIgniter

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system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php

Summary

Maintainability
F
3 days
Test Coverage

Method _limit has 27 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    protected function _limit($sql)
    {
        $limit = $this->qb_offset + $this->qb_limit;

        // As of SQL Server 2005 (9.0.*) ROW_NUMBER() is supported,
Severity: Minor
Found in system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php - About 1 hr to fix

    Function _limit has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
    Open

        protected function _limit($sql)
        {
            $limit = $this->qb_offset + $this->qb_limit;
    
            // As of SQL Server 2005 (9.0.*) ROW_NUMBER() is supported,
    Severity: Minor
    Found in system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php - About 45 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

    Function __construct has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
    Open

        public function __construct($params)
        {
            parent::__construct($params);
    
            if (empty($this->dsn))
    Severity: Minor
    Found in system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php - About 35 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 _limit($sql)
        {
            $limit = $this->qb_offset + $this->qb_limit;
    
            // As of SQL Server 2005 (9.0.*) ROW_NUMBER() is supported,
    Severity: Major
    Found in system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php and 1 other location - About 2 days to fix
    system/database/drivers/mssql/mssql_driver.php on lines 431..470

    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 424.

    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

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

        public function field_data($table)
        {
            $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION, COLUMN_DEFAULT
                FROM INFORMATION_SCHEMA.Columns
                WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table));
    Severity: Major
    Found in system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php and 3 other locations - About 7 hrs to fix
    system/database/drivers/mssql/mssql_driver.php on lines 313..336
    system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php on lines 225..248
    system/database/drivers/sqlsrv/sqlsrv_driver.php on lines 331..354

    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 224.

    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 3 locations. Consider refactoring.
    Open

        protected function _list_tables($prefix_limit = FALSE)
        {
            $sql = 'SELECT '.$this->escape_identifiers('name')
                .' FROM '.$this->escape_identifiers('sysobjects')
                .' WHERE '.$this->escape_identifiers('type')." = 'U'";
    Severity: Major
    Found in system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php and 2 other locations - About 3 hrs to fix
    system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php on lines 185..198
    system/database/drivers/sqlsrv/sqlsrv_driver.php on lines 291..304

    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 156.

    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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