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odoo_source/addons/mail/static/src/model/model_field.js
T
Sébastien Theys 8ce96ac850 [IMP] mail: rename js Model to Record
Removes confusion in technical code. An instance of Thread is a thread, by
analogy a record should be an instance of Record.

closes odoo/odoo#85359

Related: odoo/enterprise#24731
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>
2022-02-24 18:42:13 +00:00

846 lines
31 KiB
JavaScript

/** @odoo-module **/
import { clear, FieldCommand, link, replace, unlink, unlinkAll } from '@mail/model/model_field_command';
/**
* Class whose instances represent field on a model.
* These field definitions are generated from declared fields in static prop
* `fields` on the model.
*/
export class ModelField {
//--------------------------------------------------------------------------
// Public
//--------------------------------------------------------------------------
constructor({
compute,
default: def,
fieldName,
fieldType,
inverse,
isCausal = false,
readonly = false,
related,
relationType,
required = false,
sort,
to,
} = {}) {
/**
* If set, this field acts as a computed field, and this prop
* contains the name of the instance method that computes the value
* for this field. This compute method is called on creation of record
* and whenever some of its dependencies change.
*/
this.compute = compute;
/**
* Default value for this field. Used on creation of this field, to
* set a value by default.
*/
this.default = def;
/**
* Name of the field in the definition of fields on model.
*/
this.fieldName = fieldName;
/**
* Type of this field. 2 types of fields are currently supported:
*
* 1. 'attribute': fields that store primitive values like integers,
* booleans, strings, objects, array, etc.
*
* 2. 'relation': fields that relate to some other records.
*/
this.fieldType = fieldType;
/**
* This prop only makes sense in a relational field. This contains
* the name of the field name in the inverse relation. This may not
* be defined in declared field definitions, but processed relational
* field definitions always have inverses.
*/
this.inverse = inverse;
/**
* This prop only makes sense in a relational field. If set, when this
* relation is removed, the related record is automatically deleted.
*/
this.isCausal = isCausal;
/**
* Determines whether the field is read only. Read only field
* can't be updated once the record is created.
* An exception is made for computed fields (updated when the
* dependencies are updated) and related fields (updated when the
* inverse relation changes).
*/
this.readonly = readonly;
/**
* If set, this field acts as a related field, and this prop contains
* a string that references the related field. It should have the
* following format: '<relationName>.<relatedFieldName>', where
* <relationName> is a relational field name on this model or a parent
* model (note: could itself be computed or related), and
* <relatedFieldName> is the name of field on the records that are
* related to current record from this relation. When there are more
* than one record in the relation, it maps all related fields per
* record in relation.
*/
this.related = related;
/**
* This prop only makes sense in a relational field. Determine which
* type of relation there is between current record and other records.
* 2 types of relation are supported: 'many', 'one'.
*/
this.relationType = relationType;
/**
* Determine whether the field is required or not.
*
* Empty value is systematically undefined.
* null or empty string are NOT considered empty value, meaning these values meet the requirement.
*/
this.required = required;
/**
* Determines the name of the function on record that returns the
* definition on how this field is sorted (only makes sense for
* relational x2many).
*
* It must contain a function returning the definition instead of the
* definition directly (to allow the definition to depend on the value
* of another field).
*
* The definition itself should be a list of operations, and each
* operation itself should be a list of 2 elements: the first is the
* name of a supported compare method, and the second is a dot separated
* relation path, starting from the current record.
*
* When determining the order of one record compared to another, each
* compare operation will be applied in the order provided, stopping at
* the first operation that is able to determine an order for the two
* records.
*/
this.sort = sort;
/**
* Determines whether and how elements of this field should be summed
* into a counter field (only makes sense for relational x2many).
*
* It must contain an array of object with 2 keys: `from` giving the
* name of a field on the relation record that holds the contribution of
* that record to the sum, and `to` giving the name of a field on the
* current record which contains the sum.
*/
this.sumContributions = [];
/**
* This prop only makes sense in a relational field. Determine which
* model name this relation refers to.
*/
this.to = to;
}
/**
* Define an attribute field.
*
* @param {Object} [options]
* @returns {Object}
*/
static attr(options) {
return Object.assign({ fieldType: 'attribute' }, options);
}
/**
* Define a many field.
*
* @param {string} modelName
* @param {Object} [options]
* @returns {Object}
*/
static many(modelName, options) {
return ModelField._relation(modelName, Object.assign({}, options, { relationType: 'many' }));
}
/**
* Define a one field.
*
* @param {string} modelName
* @param {Object} [options]
* @returns {Object}
*/
static one(modelName, options) {
return ModelField._relation(modelName, Object.assign({}, options, { relationType: 'one' }));
}
/**
* Clears the value of this field on the given record. It consists of
* setting this to its default value. In particular, using `clear` is the
* only way to write `undefined` on a field, as long as `undefined` is its
* default value. Relational fields are always unlinked before the default
* is applied.
*
* @param {Record} record
* @param {options} [options]
* @returns {boolean} whether the value changed for the current field
*/
clear(record, options) {
let hasChanged = false;
if (this.fieldType === 'relation') {
if (this.parseAndExecuteCommands(record, unlinkAll(), options)) {
hasChanged = true;
}
if (!this.default) {
return hasChanged;
}
}
if (this.parseAndExecuteCommands(record, this.default, options)) {
hasChanged = true;
}
return hasChanged;
}
/**
* Compute method when this field is related.
*
* @private
* @param {Record} record
*/
computeRelated(record) {
const [relationName, relatedFieldName] = this.related.split('.');
const model = record.constructor;
const relationField = model.__fieldMap[relationName];
if (relationField.relationType === 'many') {
const newVal = [];
for (const otherRecord of record[relationName]) {
const otherValue = otherRecord[relatedFieldName];
if (otherValue) {
if (otherValue instanceof Array) {
for (const v of otherValue) {
newVal.push(v);
}
} else {
newVal.push(otherValue);
}
}
}
if (this.fieldType === 'relation') {
return replace(newVal);
}
return newVal;
}
const otherRecord = record[relationName];
if (otherRecord) {
const newVal = otherRecord[relatedFieldName];
if (newVal === undefined) {
return clear();
}
if (this.fieldType === 'relation') {
return replace(newVal);
}
return newVal;
}
return clear();
}
/**
* Converts the given value to a list of FieldCommands
*
* @param {*} newVal
* @returns {FieldCommand[]}
*/
convertToFieldCommandList(newVal) {
if (newVal instanceof FieldCommand) {
return [newVal];
} else if (newVal instanceof Array && newVal[0] instanceof FieldCommand) {
return newVal;
} else if (this.fieldType === 'relation') {
// Deprecated. Used only to support old syntax: `[...[name, value]]` command
return newVal.map(([name, value]) => new FieldCommand(name, value));
} else {
return [new FieldCommand('set', newVal)];
}
}
/**
* Decreases the field value by `amount`
* for an attribute field holding number value,
*
* @param {Record} record
* @param {number} amount
*/
decrement(record, amount) {
const currentValue = this.read(record);
return this._setAttribute(record, currentValue - amount);
}
/**
* Get the value associated to this field. Relations must convert record
* local ids to records.
*
* @param {Record} record
* @returns {any}
*/
get(record) {
if (this.fieldType === 'attribute') {
return this.read(record);
}
if (this.fieldType === 'relation') {
if (this.relationType === 'one') {
return this.read(record);
}
return [...this.read(record)];
}
throw new Error(`cannot get field with unsupported type ${this.fieldType}.`);
}
/**
* Increases the field value by `amount`
* for an attribute field holding number value.
*
* @param {Record} record
* @param {number} amount
*/
increment(record, amount) {
const currentValue = this.read(record);
return this._setAttribute(record, currentValue + amount);
}
/**
* Parses newVal for command(s) and executes them.
*
* @param {Record} record
* @param {any} newVal
* @param {Object} [options]
* @param {boolean} [options.hasToUpdateInverse] whether updating the
* current field should also update its inverse field. Only applies to
* relational fields. Typically set to false only during the process of
* updating the inverse field itself, to avoid unnecessary recursion.
* @returns {boolean} whether the value changed for the current field
*/
parseAndExecuteCommands(record, newVal, options) {
const commandList = this.convertToFieldCommandList(newVal);
let hasChanged = false;
for (const command of commandList) {
const commandName = command.name;
const newVal = command.value;
if (this.fieldType === 'attribute') {
switch (commandName) {
case 'clear':
if (this.clear(record, options)) {
hasChanged = true;
}
break;
case 'decrement':
if (this.decrement(record, newVal)) {
hasChanged = true;
}
break;
case 'increment':
if (this.increment(record, newVal)) {
hasChanged = true;
}
break;
case 'set':
if (this._setAttribute(record, newVal)) {
hasChanged = true;
}
break;
default:
throw new Error(`Field "${record.constructor.name}/${this.fieldName}"(${this.fieldType} type) does not support command "${commandName}"`);
}
} else if (this.fieldType === 'relation') {
switch (commandName) {
case 'clear':
if (this.clear(record, options)) {
hasChanged = true;
}
break;
case 'insert':
if (this._setRelationInsert(record, newVal, options)) {
hasChanged = true;
}
break;
case 'insert-and-replace':
if (this._setRelationInsertAndReplace(record, newVal, options)) {
hasChanged = true;
}
break;
case 'insert-and-unlink':
if (this._setRelationInsertAndUnlink(record, newVal, options)) {
hasChanged = true;
}
break;
case 'link':
if (this._setRelationLink(record, newVal, options)) {
hasChanged = true;
}
break;
case 'replace':
if (this._setRelationReplace(record, newVal, options)) {
hasChanged = true;
}
break;
case 'unlink':
if (this._setRelationUnlink(record, newVal, options)) {
hasChanged = true;
}
break;
case 'unlink-all':
if (this._setRelationUnlink(record, this.get(record), options)) {
hasChanged = true;
}
break;
default:
throw new Error(`Field "${record.constructor.name}/${this.fieldName}"(${this.fieldType} type) does not support command "${commandName}"`);
}
}
}
return hasChanged;
}
/**
* Get the raw value associated to this field. For relations, this means
* the local id or list of local ids of records in this relational field.
*
* @param {Record} record
* @returns {any}
*/
read(record) {
return record.__values[this.fieldName];
}
/**
* @returns {string}
*/
toString() {
return `field(${this.fieldName})`;
}
//--------------------------------------------------------------------------
// Private
//--------------------------------------------------------------------------
/**
* @private
* @param {string} modelName
* @param {Object} [options]
*/
static _relation(modelName, options) {
return Object.assign({
fieldType: 'relation',
to: modelName,
}, options);
}
/**
* Converts given value to expected format for x2many processing, which is
* an iterable of records.
*
* @private
* @param {Record|Record[]} newValue
* @param {Object} [param1={}]
* @param {boolean} [param1.hasToVerify=true] whether the value has to be
* verified @see `_verifyRelationalValue`
* @returns {Record[]}
*/
_convertX2ManyValue(newValue, { hasToVerify = true } = {}) {
if (typeof newValue[Symbol.iterator] === 'function') {
if (hasToVerify) {
for (const value of newValue) {
this._verifyRelationalValue(value);
}
}
return newValue;
}
if (hasToVerify) {
this._verifyRelationalValue(newValue);
}
return [newValue];
}
/**
* Creates or updates and then returns the other record(s) of a relational
* field based on the given data and the inverse relation value.
*
* @private
* @param {Record} record
* @param {Object|Object[]} data
* @returns {Record|Record[]}
*/
_insertOtherRecord(record, data) {
const otherModel = record.models[this.to];
const otherField = otherModel.__fieldMap[this.inverse];
const isMulti = typeof data[Symbol.iterator] === 'function';
const dataList = [];
for (const recordData of (isMulti ? data : [data])) {
const recordData2 = { ...recordData };
if (otherField.relationType === 'one') {
recordData2[this.inverse] = replace(record);
} else {
recordData2[this.inverse] = link(record);
}
dataList.push(recordData2);
}
const records = record.modelManager._insert(otherModel, dataList);
return isMulti ? records : records[0];
}
/**
* Set a value for this attribute field
*
* @private
* @param {Record} record
* @param {any} newVal value to be written on the field value.
* @returns {boolean} whether the value changed for the current field
*/
_setAttribute(record, newVal) {
const currentValue = this.read(record);
if (currentValue === newVal) {
return false;
}
record.__values[this.fieldName] = newVal;
return true;
}
/**
* Set on this relational field in 'insert' mode. Basically data provided
* during set on this relational field contain data to insert records,
* which themselves must be linked to record of this field by means of
* this field.
*
* @private
* @param {Record} record
* @param {Object|Object[]} data
* @param {Object} [options]
* @returns {boolean} whether the value changed for the current field
*/
_setRelationInsert(record, data, options) {
const newValue = this._insertOtherRecord(record, data);
return this._setRelationLink(record, newValue, options);
}
/**
* Set on this relational field in 'insert-and-repalce' mode. Basically
* data provided during set on this relational field contain data to insert
* records, which themselves must replace value on this field.
*
* @private
* @param {Record} record
* @param {Object|Object[]} data
* @param {Object} [options]
* @returns {boolean} whether the value changed for the current field
*/
_setRelationInsertAndReplace(record, data, options) {
const newValue = this._insertOtherRecord(record, data);
return this._setRelationReplace(record, newValue, options);
}
/**
* Set on this relational field in 'insert-and-unlink' mode. Basically
* data provided during set on this relational field contain data to insert
* records, which themselves must be unlinked from this field.
*
* @private
* @param {Record} record
* @param {Object|Object[]} data
* @param {Object} [options]
* @returns {boolean} whether the value changed for the current field
*/
_setRelationInsertAndUnlink(record, data, options) {
const newValue = this._insertOtherRecord(record, data);
return this._setRelationUnlink(record, newValue, options);
}
/**
* Set a 'link' operation on this relational field.
*
* @private
* @param {Record|Record[]} newValue
* @param {Object} [options]
* @returns {boolean} whether the value changed for the current field
*/
_setRelationLink(record, newValue, options) {
switch (this.relationType) {
case 'many':
return this._setRelationLinkX2Many(record, newValue, options);
case 'one':
return this._setRelationLinkX2One(record, newValue, options);
}
}
/**
* Handling of a `set` 'link' of a x2many relational field.
*
* @private
* @param {Record} record
* @param {Record|Record[]} newValue
* @param {Object} [param2={}]
* @param {boolean} [param2.hasToUpdateInverse=true] whether updating the
* current field should also update its inverse field. Typically set to
* false only during the process of updating the inverse field itself, to
* avoid unnecessary recursion.
* @returns {boolean} whether the value changed for the current field
*/
_setRelationLinkX2Many(record, newValue, { hasToUpdateInverse = true } = {}) {
const hasToVerify = record.modelManager.isDebug;
const recordsToLink = this._convertX2ManyValue(newValue, { hasToVerify });
const otherRecords = this.read(record);
let hasChanged = false;
for (const recordToLink of recordsToLink) {
// other record already linked, avoid linking twice
if (otherRecords.has(recordToLink)) {
continue;
}
hasChanged = true;
// link other records to current record
otherRecords.add(recordToLink);
// link current record to other records
if (hasToUpdateInverse) {
record.modelManager._update(
recordToLink,
{ [this.inverse]: link(record) },
{ allowWriteReadonly: true, hasToUpdateInverse: false }
);
}
}
return hasChanged;
}
/**
* Handling of a `set` 'link' of an x2one relational field.
*
* @private
* @param {Record} record
* @param {Record} recordToLink
* @param {Object} [param2={}]
* @param {boolean} [param2.hasToUpdateInverse=true] whether updating the
* current field should also update its inverse field. Typically set to
* false only during the process of updating the inverse field itself, to
* avoid unnecessary recursion.
* @returns {boolean} whether the value changed for the current field
*/
_setRelationLinkX2One(record, recordToLink, { hasToUpdateInverse = true } = {}) {
if (record.modelManager.isDebug) {
this._verifyRelationalValue(recordToLink);
}
const prevOtherRecord = this.read(record);
// other record already linked, avoid linking twice
if (prevOtherRecord === recordToLink) {
return false;
}
// unlink to properly update previous inverse before linking new value
this._setRelationUnlinkX2One(record, { hasToUpdateInverse: true });
// link other record to current record
record.__values[this.fieldName] = recordToLink;
// link current record to other record
if (hasToUpdateInverse) {
record.modelManager._update(
recordToLink,
{ [this.inverse]: link(record) },
{ allowWriteReadonly: true, hasToUpdateInverse: false }
);
}
return true;
}
/**
* Set a 'replace' operation on this relational field.
*
* @private
* @param {Record} record
* @param {Record|Record[]} newValue
* @param {Object} [options]
* @returns {boolean} whether the value changed for the current field
*/
_setRelationReplace(record, newValue, options) {
if (this.relationType === 'one') {
// for x2one replace is just link
return this._setRelationLinkX2One(record, newValue, options);
}
// for x2many: smart process to avoid unnecessary unlink/link
let hasChanged = false;
let hasToReorder = false;
const otherRecordsSet = this.read(record);
const otherRecordsList = [...otherRecordsSet];
const hasToVerify = record.modelManager.isDebug;
const recordsToReplaceList = [...this._convertX2ManyValue(newValue, { hasToVerify })];
const recordsToReplaceSet = new Set(recordsToReplaceList);
// records to link
const recordsToLink = [];
for (let i = 0; i < recordsToReplaceList.length; i++) {
const recordToReplace = recordsToReplaceList[i];
if (!otherRecordsSet.has(recordToReplace)) {
recordsToLink.push(recordToReplace);
}
if (otherRecordsList[i] !== recordToReplace) {
hasToReorder = true;
}
}
if (this._setRelationLinkX2Many(record, recordsToLink, options)) {
hasChanged = true;
}
// records to unlink
const recordsToUnlink = [];
for (let i = 0; i < otherRecordsList.length; i++) {
const otherRecord = otherRecordsList[i];
if (!recordsToReplaceSet.has(otherRecord)) {
recordsToUnlink.push(otherRecord);
}
if (recordsToReplaceList[i] !== otherRecord) {
hasToReorder = true;
}
}
if (this._setRelationUnlinkX2Many(record, recordsToUnlink, options)) {
hasChanged = true;
}
// reorder result
if (hasToReorder) {
otherRecordsSet.clear();
for (const record of recordsToReplaceList) {
otherRecordsSet.add(record);
}
hasChanged = true;
}
return hasChanged;
}
/**
* Set an 'unlink' operation on this relational field.
*
* @private
* @param {Record} record
* @param {Record|Record[]} newValue
* @param {Object} [options]
* @returns {boolean} whether the value changed for the current field
*/
_setRelationUnlink(record, newValue, options) {
switch (this.relationType) {
case 'many':
return this._setRelationUnlinkX2Many(record, newValue, options);
case 'one':
return this._setRelationUnlinkX2One(record, options);
}
}
/**
* Handling of a `set` 'unlink' of a x2many relational field.
*
* @private
* @param {Record} record
* @param {Record|Record[]} newValue
* @param {Object} [param2={}]
* @param {boolean} [param2.hasToUpdateInverse=true] whether updating the
* current field should also update its inverse field. Typically set to
* false only during the process of updating the inverse field itself, to
* avoid unnecessary recursion.
* @returns {boolean} whether the value changed for the current field
*/
_setRelationUnlinkX2Many(record, newValue, { hasToUpdateInverse = true } = {}) {
const recordsToUnlink = this._convertX2ManyValue(
newValue,
{ hasToVerify: false }
);
const otherRecords = this.read(record);
let hasChanged = false;
for (const recordToUnlink of recordsToUnlink) {
// unlink other record from current record
const wasLinked = otherRecords.delete(recordToUnlink);
if (!wasLinked) {
continue;
}
hasChanged = true;
// unlink current record from other records
if (hasToUpdateInverse) {
if (!recordToUnlink.exists()) {
// This case should never happen ideally, but the current
// way of handling related relational fields make it so that
// deleted records are not always reflected immediately in
// these related fields.
continue;
}
// apply causality
if (this.isCausal) {
record.modelManager._delete(recordToUnlink);
} else {
record.modelManager._update(
recordToUnlink,
{ [this.inverse]: unlink(record) },
{ allowWriteReadonly: true, hasToUpdateInverse: false }
);
}
}
}
return hasChanged;
}
/**
* Handling of a `set` 'unlink' of a x2one relational field.
*
* @private
* @param {Record} record
* @param {Object} [param1={}]
* @param {boolean} [param1.hasToUpdateInverse=true] whether updating the
* current field should also update its inverse field. Typically set to
* false only during the process of updating the inverse field itself, to
* avoid unnecessary recursion.
* @returns {boolean} whether the value changed for the current field
*/
_setRelationUnlinkX2One(record, { hasToUpdateInverse = true } = {}) {
const otherRecord = this.read(record);
// other record already unlinked, avoid useless processing
if (!otherRecord) {
return false;
}
// unlink other record from current record
record.__values[this.fieldName] = undefined;
// unlink current record from other record
if (hasToUpdateInverse) {
if (!otherRecord.exists()) {
// This case should never happen ideally, but the current
// way of handling related relational fields make it so that
// deleted records are not always reflected immediately in
// these related fields.
return;
}
// apply causality
if (this.isCausal) {
record.modelManager._delete(otherRecord);
} else {
record.modelManager._update(
otherRecord,
{ [this.inverse]: unlink(record) },
{ allowWriteReadonly: true, hasToUpdateInverse: false }
);
}
}
return true;
}
/**
* Verifies the given relational value makes sense for the current field.
* In particular the given value must be a record, it must be non-deleted,
* and it must originates from relational `to` model (or its subclasses).
*
* @private
* @param {Record} record
* @throws {Error} if record does not satisfy related model
*/
_verifyRelationalValue(record) {
if (!record) {
throw Error(`record is undefined. Did you try to link() or insert() empty value? Considering clear() instead.`);
}
if (!record.modelManager) {
throw Error(`${record} is not a record. Did you try to use link() instead of insert() with data?`);
}
const otherModel = record.modelManager.models[this.to];
if (!otherModel.get(record.localId, { isCheckingInheritance: true })) {
throw Error(`Record ${record.localId} is not valid for relational field ${this.fieldName}.`);
}
}
}
export const attr = ModelField.attr;
export const many = ModelField.many;
export const one = ModelField.one;