sequelize/sequelize

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src/associations/has-many.js

Summary

Maintainability
F
4 days
Test Coverage

File has-many.js has 324 lines of code (exceeds 250 allowed). Consider refactoring.
Open

const Utils = require('./../utils');
const Helpers = require('./helpers');
const _ = require('lodash');
const Association = require('./base');
const Op = require('../operators');
Severity: Minor
Found in src/associations/has-many.js - About 3 hrs to fix

    Function constructor has 63 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      constructor(source, target, options) {
        super(source, target, options);
    
        this.associationType = 'HasMany';
        this.targetAssociation = null;
    Severity: Major
    Found in src/associations/has-many.js - About 2 hrs to fix

      Function get has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.
      Open

        async get(instances, options = {}) {
          const where = {};
      
          let Model = this.target;
          let instance;
      Severity: Minor
      Found in src/associations/has-many.js - About 2 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

      Function set has 51 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

        async set(sourceInstance, targetInstances, options) {
          if (targetInstances === null) {
            targetInstances = [];
          } else {
            targetInstances = this.toInstanceArray(targetInstances);
      Severity: Major
      Found in src/associations/has-many.js - About 2 hrs to fix

        Function get has 51 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

          async get(instances, options = {}) {
            const where = {};
        
            let Model = this.target;
            let instance;
        Severity: Major
        Found in src/associations/has-many.js - About 2 hrs to fix

          Function constructor has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.
          Open

            constructor(source, target, options) {
              super(source, target, options);
          
              this.associationType = 'HasMany';
              this.targetAssociation = null;
          Severity: Minor
          Found in src/associations/has-many.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

          Function _injectAttributes has 28 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

            _injectAttributes() {
              const newAttributes = {
                [this.foreignKey]: {
                  type: this.options.keyType || this.source.rawAttributes[this.sourceKeyAttribute].type,
                  allowNull: true,
          Severity: Minor
          Found in src/associations/has-many.js - About 1 hr to fix

            Function create has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
            Open

              async create(sourceInstance, values, options = {}) {
                if (Array.isArray(options)) {
                  options = {
                    fields: options
                  };
            Severity: Minor
            Found in src/associations/has-many.js - About 55 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

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

                this.accessors = {
                  get: `get${plural}`,
                  set: `set${plural}`,
                  addMultiple: `add${plural}`,
                  add: `add${singular}`,
            Severity: Major
            Found in src/associations/has-many.js and 1 other location - About 5 hrs to fix
            src/associations/belongs-to-many.js on lines 215..226

            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 152.

            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 2 locations. Consider refactoring.
            Open

                if (this.as) {
                  this.isAliased = true;
            
                  if (_.isPlainObject(this.as)) {
                    this.options.name = this.as;
            Severity: Major
            Found in src/associations/has-many.js and 1 other location - About 4 hrs to fix
            src/associations/belongs-to-many.js on lines 83..98

            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 118.

            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

                if (Object.prototype.hasOwnProperty.call(options, 'scope')) {
                  if (!options.scope) {
                    Model = Model.unscoped();
                  } else {
                    Model = Model.scope(options.scope);
            Severity: Major
            Found in src/associations/has-many.js and 3 other locations - About 1 hr to fix
            src/associations/belongs-to-many.js on lines 477..483
            src/associations/belongs-to.js on lines 132..138
            src/associations/has-one.js on lines 134..140

            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 74.

            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

              verifyAssociationAlias(alias) {
                if (typeof alias === 'string') {
                  return this.as === alias;
                }
            
            
            Severity: Major
            Found in src/associations/has-many.js and 3 other locations - About 1 hr to fix
            src/associations/belongs-to-many.js on lines 848..858
            src/associations/belongs-to.js on lines 234..244
            src/associations/has-one.js on lines 266..276

            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

              mixin(obj) {
                const methods = [
                  'get',
                  'count',
                  'hasSingle',
            Severity: Major
            Found in src/associations/has-many.js and 1 other location - About 1 hr to fix
            src/associations/belongs-to-many.js on lines 397..418

            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 71.

            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

                const unassociatedObjects = targetInstances.filter(
                  obj => !oldAssociations.find(old => obj[this.target.primaryKeyAttribute] === old[this.target.primaryKeyAttribute])
                );
            Severity: Major
            Found in src/associations/has-many.js and 1 other location - About 1 hr to fix
            src/associations/has-many.js on lines 339..341

            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 61.

            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

                const obsoleteAssociations = oldAssociations.filter(
                  old => !targetInstances.find(obj => obj[this.target.primaryKeyAttribute] === old[this.target.primaryKeyAttribute])
                );
            Severity: Major
            Found in src/associations/has-many.js and 1 other location - About 1 hr to fix
            src/associations/has-many.js on lines 342..344

            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 61.

            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

                if (Object.prototype.hasOwnProperty.call(options, 'schema')) {
                  Model = Model.schema(options.schema, options.schemaDelimiter);
                }
            Severity: Major
            Found in src/associations/has-many.js and 3 other locations - About 40 mins to fix
            src/associations/belongs-to-many.js on lines 485..487
            src/associations/belongs-to.js on lines 140..142
            src/associations/has-one.js on lines 142..144

            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 48.

            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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