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fix(adapter): Prevent fetching belongs to when localKey is empty #13

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fix(adapter): Prevent fetching belongs to when localKey is empty #13

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38 changes: 22 additions & 16 deletions src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -806,29 +806,35 @@ Component.extend({

if (utils.isObject(records) && !utils.isArray(records)) {
const record = records
return this.find(relationDef, this.makeBelongsToForeignKey(mapper, def, record), __opts)
.then((relatedItem) => {
def.setLocalField(record, relatedItem)
})
const foreignKey = this.makeBelongsToForeignKey(mapper, def, record)
if (foreignKey) {
return this.find(relationDef, foreignKey, __opts)
.then((relatedItem) => {
def.setLocalField(record, relatedItem)
})
}
} else {
const keys = records
.map((record) => this.makeBelongsToForeignKey(mapper, def, record))
.filter((key) => key)
return this.findAll(relationDef, {
where: {
[relationDef.idAttribute]: {
'in': keys
}
}
}, __opts).then((relatedItems) => {
records.forEach((record) => {
relatedItems.forEach((relatedItem) => {
if (relatedItem[relationDef.idAttribute] === record[def.foreignKey]) {
def.setLocalField(record, relatedItem)
.filter((key, index, array) => array.indexOf(key) === index) // unique values
if (keys.length) {
return this.findAll(relationDef, {
where: {
[relationDef.idAttribute]: {
'in': keys
}
}
}, __opts).then((relatedItems) => {
records.forEach((record) => {
relatedItems.forEach((relatedItem) => {
if (relatedItem[relationDef.idAttribute] === record[def.foreignKey]) {
def.setLocalField(record, relatedItem)
}
})
})
})
})
}
}
},

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