1 | 'use strict';
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2 | var Relationship = require('./relationship');
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3 |
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4 | function QueryObject(table, attributes, relationships, options) {
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5 | this.table = table;
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6 | this.relationships = relationships;
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7 | this.relationshipsSorted = {};
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8 | this.relationshipsCreated = {};
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9 | this.options = options;
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10 | this.filter(attributes, relationships);
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11 | return this;
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12 | }
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13 |
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14 | QueryObject.prototype.filter = function(attributes, relationships) {
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15 | var newAttributes = {};
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16 | var relationshipsSorted = {};
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17 | for(var attribute in attributes) {
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18 | if(relationships.hasOwnProperty(attribute)) {
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19 | switch(relationships[attribute].type) {
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20 | case Relationship.Types.belongsToOne: {
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21 | if(!relationshipsSorted.belongsToOne) relationshipsSorted.belongsToOne = {};
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22 | relationshipsSorted.belongsToOne[attribute] = attributes[attribute];
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23 | break;
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24 | }
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25 | case Relationship.Types.belongsToMany: {
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26 | if(!relationshipsSorted.belongsToMany) relationshipsSorted.belongsToMany = {};
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27 | relationshipsSorted.belongsToMany[attribute] = attributes[attribute];
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28 | break;
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29 | }
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30 | case Relationship.Types.hasOne: {
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31 | if(!relationshipsSorted.hasOne) relationshipsSorted.hasOne = {};
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32 | relationshipsSorted.hasOne[attribute] = attributes[attribute];
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33 | break;
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34 | }
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35 | case Relationship.Types.hasMany: {
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36 | if(!relationshipsSorted.hasMany) relationshipsSorted.hasMany = {};
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37 | relationshipsSorted.hasMany[attribute] = attributes[attribute];
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38 | break;
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39 | }
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40 | }
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41 | } else {
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42 | newAttributes[attribute] = attributes[attribute];
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43 | }
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44 | }
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45 | this.relationshipsSorted = Object.assign({}, this.relationshipsSorted, relationshipsSorted);
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46 | this.attributes = Object.assign({}, this.attributes, newAttributes);
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47 | };
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48 |
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49 |
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50 |
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51 |
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52 |
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53 | QueryObject.prototype.createBelongsToOne = function() {
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54 | var attributes = [];
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55 | var relationships = [];
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56 | var promises = [];
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57 | for(var attribute in this.relationshipsSorted.belongsToOne) {
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58 | if(this.relationships.hasOwnProperty(attribute)) {
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59 | var relationship = this.relationships[attribute];
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60 | var relationshipData = this.relationshipsSorted.belongsToOne[attribute];
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61 |
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62 |
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63 |
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64 | if(!relationshipData[relationship.identifer.parent]) {
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65 | var promise = relationship.createBelongsToOne(relationshipData, this.options);
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66 | attributes.push(attribute);
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67 | relationships.push(relationship);
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68 | promises.push(promise);
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69 | }
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70 |
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71 | else {
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72 |
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73 | this.relationshipsCreated[attribute] = relationshipData;
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74 | }
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75 |
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76 |
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77 |
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78 | }
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79 | }
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80 | return Promise.all(promises).then((models) => {
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81 | var newAttributes = {};
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82 | models.map((model, index) => {
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83 | this.relationshipsCreated[attributes[index]] = model;
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84 | newAttributes[attributes[index]] = model;
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85 | });
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86 | this.filter(newAttributes, this.relationships);
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87 | });
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88 | };
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89 |
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90 | QueryObject.prototype.createBelongsToMany = function() {
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91 | var attributes = [];
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92 | var relationships = [];
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93 | var promises = [];
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94 | for(var attribute in this.relationshipsSorted.belongsToMany) {
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95 | if(this.relationships.hasOwnProperty(attribute)) {
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96 | var relationship = this.relationships[attribute];
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97 | this.relationshipsSorted.belongsToMany[attribute].map((relationshipData) => {
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98 |
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99 |
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100 |
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101 | let targetModelFactory = relationship.getTargetModel();
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102 | if(!relationshipData[targetModelFactory.identifer.parent]) {
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103 | var promise = relationship.createBelongsToOne(relationshipData, this.options);
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104 | attributes.push(attribute);
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105 | relationships.push(relationship);
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106 | promises.push(promise);
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107 | }
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108 |
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109 | else {
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110 |
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111 | if(!this.relationshipsCreated[attribute]) {
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112 | this.relationshipsCreated[attribute] = [];
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113 | }
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114 | this.relationshipsCreated[attribute].push(relationshipData);
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115 | }
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116 |
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117 |
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118 |
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119 | });
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120 | }
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121 | }
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122 | return Promise.all(promises).then((modelsMany) => {
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123 | var newAttributes = {};
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124 | modelsMany.map((models, index) => {
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125 | this.relationshipsCreated[attributes[index]] = models;
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126 | newAttributes[attributes[index]] = models;
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127 | });
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128 | this.filter(newAttributes, this.relationships);
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129 | });
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130 | };
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131 |
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132 | QueryObject.prototype.createHasOne = function(parentModel) {
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133 | var attributes = [];
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134 | var relationships = [];
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135 | var promises = [];
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136 | for(var attribute in this.relationshipsSorted.hasOne) {
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137 | if(this.relationships.hasOwnProperty(attribute)) {
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138 | var relationship = this.relationships[attribute];
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139 | var relationshipData = this.relationshipsSorted.hasOne[attribute];
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140 |
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141 |
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142 |
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143 | if(!relationshipData[relationship.identifer.parent]) {
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144 | var promise = relationship.createHasOne(relationshipData, parentModel, this.options);
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145 | attributes.push(attribute);
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146 | relationships.push(relationship);
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147 | promises.push(promise);
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148 | }
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149 |
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150 | else {
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151 | this.relationshipsCreated[attribute] = relationshipData;
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152 | }
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153 |
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154 |
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155 |
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156 | }
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157 | }
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158 | return Promise.all(promises).then((models) => {
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159 | models.map((model, index) => {
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160 | this.relationshipsCreated[attributes[index]] = model;
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161 | });
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162 | });
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163 | };
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164 |
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165 | QueryObject.prototype.createHasMany = function(parentModel) {
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166 | var attributes = [];
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167 | var relationships = [];
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168 | var promises = [];
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169 | for(var attribute in this.relationshipsSorted.hasMany) {
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170 | if(this.relationships.hasOwnProperty(attribute)) {
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171 | var relationship = this.relationships[attribute];
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172 | this.relationshipsSorted.hasMany[attribute].map((relationshipData) => {
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173 |
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174 |
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175 |
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176 | if(!relationshipData[relationship.identifer.child]) {
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177 | var promise = relationship.createHasOne(relationshipData, parentModel, this.options);
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178 | attributes.push(attribute);
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179 | relationships.push(relationship);
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180 | promises.push(promise);
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181 | }
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182 |
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183 | else {
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184 |
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185 | if(!this.relationshipsCreated[attribute]) {
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186 | this.relationshipsCreated[attribute] = [];
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187 | }
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188 | this.relationshipsCreated[attribute].push(relationshipData);
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189 | }
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190 |
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191 |
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192 |
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193 | });
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194 | }
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195 | }
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196 | return Promise.all(promises).then((modelsMany) => {
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197 | modelsMany.map((models, index) => {
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198 |
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199 | if(!this.relationshipsCreated[attributes[index]]) {
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200 | this.relationshipsCreated[attributes[index]] = [];
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201 | }
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202 | this.relationshipsCreated[attributes[index]].push(models);
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203 | });
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204 | });
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205 | };
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206 |
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207 |
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208 |
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209 |
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210 |
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211 | QueryObject.prototype.attachBelongsToOne = function() {
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212 | for(var attribute in this.relationshipsSorted.belongsToOne) {
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213 | if(this.relationships.hasOwnProperty(attribute)) {
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214 | this.attributes = this.relationships[attribute].attachAsAttribute(
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215 | this.attributes,
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216 | this.relationshipsSorted.belongsToOne[attribute]
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217 | );
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218 | }
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219 | }
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220 | };
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221 |
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222 | QueryObject.prototype.attachBelongsToMany = function(childModel, options) {
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223 | var promises = [];
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224 | for(var attribute in this.relationshipsSorted.belongsToMany) {
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225 | if(this.relationships.hasOwnProperty(attribute)) {
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226 | var promise = this.relationships[attribute].attach(
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227 | childModel,
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228 | this.relationshipsSorted.belongsToMany[attribute],
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229 | options
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230 | );
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231 | promises.push(promise);
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232 | }
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233 | }
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234 | return Promise.all(promises);
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235 | };
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236 |
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237 |
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238 |
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239 |
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240 | QueryObject.prototype.concatCreatedRelationships = function(model) {
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241 | return Object.assign({}, model, this.relationshipsCreated);
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242 | };
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243 |
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244 |
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245 |
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246 |
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247 |
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248 | QueryObject.prototype.getTable = function() {
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249 | return this.table;
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250 | };
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251 |
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252 | QueryObject.prototype.getRelationships = function() {
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253 | return this.relationships;
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254 | };
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255 |
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256 | QueryObject.prototype.getAttributes = function() {
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257 | return this.attributes;
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258 | };
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259 |
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260 | QueryObject.prototype.getJoin = function() {
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261 | return Object.assign({},
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262 | this.relationshipsSorted.belongsToOne,
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263 | this.relationshipsSorted.belongsToMany,
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264 | this.relationshipsSorted.hasOne,
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265 | this.relationshipsSorted.hasMany);
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266 | };
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267 |
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268 | QueryObject.prototype.getOptions = function() {
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269 | return this.options;
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270 | };
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271 |
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272 | module.exports = QueryObject; |
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