nus-mtp/cs-modify

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components/handlers/edit_all_mountings_and_quotas.py

Summary

Maintainability
F
5 days
Test Coverage

Function POST has a Cognitive Complexity of 97 (exceeds 5 allowed). Consider refactoring.
Open

    def POST(self, *test_data):
        '''
            Handles the editing operations for all mountings and quotas
        '''
        if test_data:
Severity: Minor
Found in components/handlers/edit_all_mountings_and_quotas.py - About 1 day 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

Cyclomatic complexity is too high in method POST. (30)
Open

    def POST(self, *test_data):
        '''
            Handles the editing operations for all mountings and quotas
        '''
        if test_data:

Cyclomatic Complexity

Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

Construct Effect on CC Reasoning
if +1 An if statement is a single decision.
elif +1 The elif statement adds another decision.
else +0 The else statement does not cause a new decision. The decision is at the if.
for +1 There is a decision at the start of the loop.
while +1 There is a decision at the while statement.
except +1 Each except branch adds a new conditional path of execution.
finally +0 The finally block is unconditionally executed.
with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
assert +1 The assert statement internally roughly equals a conditional statement.
Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

Source: http://radon.readthedocs.org/en/latest/intro.html

Cyclomatic complexity is too high in class EditAll. (16)
Open

class EditAll(object):
    '''
        This class contains the implementations of the GET and POST requests.
        for the 'Edit All Mountings and Quotas' page
    '''

Cyclomatic Complexity

Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

Construct Effect on CC Reasoning
if +1 An if statement is a single decision.
elif +1 The elif statement adds another decision.
else +0 The else statement does not cause a new decision. The decision is at the if.
for +1 There is a decision at the start of the loop.
while +1 There is a decision at the while statement.
except +1 Each except branch adds a new conditional path of execution.
finally +0 The finally block is unconditionally executed.
with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
assert +1 The assert statement internally roughly equals a conditional statement.
Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

Source: http://radon.readthedocs.org/en/latest/intro.html

Avoid deeply nested control flow statements.
Open

                            if test_data:
                                return False
                            else:
                                return Outcome().POST("edit_all_mountings_and_quotas", False, None)
                    except ValueError:  # quota is not an integer
Severity: Major
Found in components/handlers/edit_all_mountings_and_quotas.py - About 45 mins to fix

    Avoid deeply nested control flow statements.
    Open

                                if test_data:
                                    return False
                                else:
                                    return Outcome().POST("edit_all_mountings_and_quotas", False, None)
                        except ValueError:  # quota is not an integer
    Severity: Major
    Found in components/handlers/edit_all_mountings_and_quotas.py - About 45 mins to fix

      Avoid too many return statements within this function.
      Open

                                  return False
      Severity: Major
      Found in components/handlers/edit_all_mountings_and_quotas.py - About 30 mins to fix

        Avoid too many return statements within this function.
        Open

                                        return False
        Severity: Major
        Found in components/handlers/edit_all_mountings_and_quotas.py - About 30 mins to fix

          Avoid too many return statements within this function.
          Open

                                          return Outcome().POST("edit_all_mountings_and_quotas", False, None)
          Severity: Major
          Found in components/handlers/edit_all_mountings_and_quotas.py - About 30 mins to fix

            Avoid too many return statements within this function.
            Open

                                        return Outcome().POST("edit_all_mountings_and_quotas", False, None)
            Severity: Major
            Found in components/handlers/edit_all_mountings_and_quotas.py - About 30 mins to fix

              Avoid too many return statements within this function.
              Open

                                  return Outcome().POST("edit_all_mountings_and_quotas", False, None)
              Severity: Major
              Found in components/handlers/edit_all_mountings_and_quotas.py - About 30 mins to fix

                Avoid too many return statements within this function.
                Open

                                    return Outcome().POST("edit_all_mountings_and_quotas", False, None)
                Severity: Major
                Found in components/handlers/edit_all_mountings_and_quotas.py - About 30 mins to fix

                  Avoid too many return statements within this function.
                  Open

                              return Outcome().POST("edit_all_mountings_and_quotas", True, None)
                  Severity: Major
                  Found in components/handlers/edit_all_mountings_and_quotas.py - About 30 mins to fix

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

                                    if sem1_quota is not None:
                                        try:
                                            sem1_quota = int(sem1_quota)
                                            if sem1_quota < 0 or sem1_quota > 999:
                                                if test_data:
                    Severity: Major
                    Found in components/handlers/edit_all_mountings_and_quotas.py and 1 other location - About 5 hrs to fix
                    components/handlers/edit_all_mountings_and_quotas.py on lines 101..113

                    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 89.

                    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 sem2_quota is not None:
                                        try:
                                            sem2_quota = int(sem2_quota)
                                            if sem2_quota < 0 or sem2_quota > 999:
                                                if test_data:
                    Severity: Major
                    Found in components/handlers/edit_all_mountings_and_quotas.py and 1 other location - About 5 hrs to fix
                    components/handlers/edit_all_mountings_and_quotas.py on lines 81..93

                    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 89.

                    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 sem2_mounting is True:
                                        old_mounting = model.get_mounting_of_target_tenta_ay_sem(module_code,
                                                                                                 target_aysem)
                                        if old_mounting is True:
                                            outcome = model.update_quota(module_code,
                    Severity: Major
                    Found in components/handlers/edit_all_mountings_and_quotas.py and 1 other location - About 3 hrs to fix
                    components/handlers/edit_all_mountings_and_quotas.py on lines 117..127

                    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 72.

                    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 sem1_mounting is True:
                                        old_mounting = model.get_mounting_of_target_tenta_ay_sem(module_code,
                                                                                                 target_aysem)
                                        if old_mounting is True:
                                            outcome = model.update_quota(module_code,
                    Severity: Major
                    Found in components/handlers/edit_all_mountings_and_quotas.py and 1 other location - About 3 hrs to fix
                    components/handlers/edit_all_mountings_and_quotas.py on lines 133..143

                    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 72.

                    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

                                    try:
                                        sem2_quota = input_data[module_code+"_Sem2Quota"]
                                        if sem2_quota == "":  # quota = '?'
                                            sem2_quota = None
                                    except KeyError:  # quota = '-'
                    Severity: Major
                    Found in components/handlers/edit_all_mountings_and_quotas.py and 1 other location - About 1 hr to fix
                    components/handlers/edit_all_mountings_and_quotas.py on lines 75..80

                    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 44.

                    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

                                    try:
                                        sem1_quota = input_data[module_code+"_Sem1Quota"]
                                        if sem1_quota == "":  # quota = '?'
                                            sem1_quota = None
                                    except KeyError:  # quota = '-'
                    Severity: Major
                    Found in components/handlers/edit_all_mountings_and_quotas.py and 1 other location - About 1 hr to fix
                    components/handlers/edit_all_mountings_and_quotas.py on lines 95..100

                    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 44.

                    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

                                    try:
                                        sem2_mounting = input_data[module_code+"_Sem2Mounting"]
                                        sem2_mounting = True
                                    except KeyError:
                                        sem2_mounting = False
                    Severity: Minor
                    Found in components/handlers/edit_all_mountings_and_quotas.py and 1 other location - About 40 mins to fix
                    components/handlers/edit_all_mountings_and_quotas.py on lines 64..68

                    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 34.

                    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

                                    try:
                                        sem1_mounting = input_data[module_code+"_Sem1Mounting"]
                                        sem1_mounting = True
                                    except KeyError:
                                        sem1_mounting = False
                    Severity: Minor
                    Found in components/handlers/edit_all_mountings_and_quotas.py and 1 other location - About 40 mins to fix
                    components/handlers/edit_all_mountings_and_quotas.py on lines 69..73

                    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 34.

                    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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