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src/services/schema/update/analyzer/mongo-collections-analyzer.js

Summary

Maintainability
D
1 day
Test Coverage
A
100%

Function mapCollection has a Cognitive Complexity of 29 (exceeds 5 allowed). Consider refactoring.
Open

function mapCollection(keys = this, emitFunction, store) {
  // this block is to inject the emit function when this code is running locally
  var emitAction;
  if (emitFunction && store) {
    emitAction = function emit(key, value) {
Severity: Minor
Found in src/services/schema/update/analyzer/mongo-collections-analyzer.js - About 4 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

File mongo-collections-analyzer.js has 323 lines of code (exceeds 250 allowed). Consider refactoring.
Open

const P = require('bluebird');
const { ObjectId } = require('mongodb');

const EmptyDatabaseError = require('../../../../errors/database/empty-database-error');

Severity: Minor
Found in src/services/schema/update/analyzer/mongo-collections-analyzer.js - About 3 hrs to fix

    Function constructor has 47 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      constructor({
        assertPresent,
        logger,
        detectReferences,
        applyReferences,
    Severity: Minor
    Found in src/services/schema/update/analyzer/mongo-collections-analyzer.js - About 1 hr to fix

      Function analyzeMongoCollections has 43 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

        async analyzeMongoCollections(databaseConnection) {
          const collections = await databaseConnection.collections();
          if (collections.length === 0) {
            this.restoreDefaultState();
            throw new EmptyDatabaseError('no collections found', {
      Severity: Minor
      Found in src/services/schema/update/analyzer/mongo-collections-analyzer.js - About 1 hr to fix

        Function mapCollection has 42 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

        function mapCollection(keys = this, emitFunction, store) {
          // this block is to inject the emit function when this code is running locally
          var emitAction;
          if (emitFunction && store) {
            emitAction = function emit(key, value) {
        Severity: Minor
        Found in src/services/schema/update/analyzer/mongo-collections-analyzer.js - About 1 hr to fix

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

            async analyzeMongoCollections(databaseConnection) {
              const collections = await databaseConnection.collections();
              if (collections.length === 0) {
                this.restoreDefaultState();
                throw new EmptyDatabaseError('no collections found', {
          Severity: Minor
          Found in src/services/schema/update/analyzer/mongo-collections-analyzer.js - 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

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