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odoo_source/addons/mail/static/src/model/model_field.js
T
Sébastien Theys 1d7285dc56 [FIX] mail: speed up JS models x2m link/unlink by keeping prev Set
Part of task-2308312

X-original-commit: 1a06077443582f99f58c8c62ab517e7e527f58ed
2020-08-03 15:49:03 +00:00

896 lines
30 KiB
JavaScript

odoo.define('mail/static/src/model/model_field.js', function (require) {
'use strict';
/**
* Class whose instances represent field on a model.
* These field definitions are generated from declared fields in static prop
* `fields` on the model.
*/
class ModelField {
//--------------------------------------------------------------------------
// Public
//--------------------------------------------------------------------------
constructor({
autocreate = false,
compute,
default: def,
dependencies = [],
dependents = [],
fieldName,
fieldType,
hashes: extraHashes = [],
inverse,
isCausal = false,
modelManager,
related,
relationType,
to,
} = {}) {
const id = _.uniqueId('field_');
/**
* This prop only makes sense for fields of type "relation". If set,
* it automatically creates a new record for this field on creation of
* record, and auto-links with this record.
*/
this.autocreate = autocreate;
/**
* 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. @see dependencies
*/
this.compute = compute;
/**
* Default value for this field. Used on creation of this field, to
* set a value by default.
*/
this.default = def;
/**
* List of field on current record that this field depends on for its
* `compute` method. Useful to determine whether this field should be
* registered for recomputation when some record fields have changed.
* This list must be declared in model definition, or compute method
* is only computed once.
*/
this.dependencies = dependencies;
/**
* List of fields that are dependent of this field. They should never
* be declared, and are automatically generated while processing
* declared fields. This is populated by compute `dependencies` and
* `related`.
*/
this.dependents = dependents;
/**
* 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;
/**
* List of hashes registered on this field definition. Technical
* prop that is specifically used in processing of dependent
* fields, useful to clearly identify which fields of a relation are
* dependents and must be registered for computed. Indeed, not all
* related records may have a field that depends on changed field,
* especially when dependency is defined on sub-model on a relation in
* a super-model.
*
* To illustrate the purpose of this hash, suppose following definition
* of models and fields:
*
* - 3 models (A, B, C) and 3 fields (x, y, z)
* - A.fields: { x: one2one(C, inverse: x') }
* - B extends A
* - B.fields: { z: related(x.y) }
* - C.fields: { y: attribute }
*
* Visually:
* x'
* <-----------
* A -----------> C { y }
* ^ x
* |
* | (extends)
* |
* B { z = x.y }
*
* If z has a dependency on x.y, it means y has a dependent on x'.z.
* Note that field z exists on B but not on all A. To determine which
* kinds of records in relation x' are dependent on y, y is aware of an
* hash on this dependent, and any dependents who has this hash in list
* of hashes are actual dependents.
*/
this.hashes = extraHashes.concat([id]);
/**
* Identification for this field definition. Useful to map a dependent
* from a dependency. Indeed, declared field definitions use
* 'dependencies' but technical process need inverse as 'dependents'.
* Dependencies just need name of fields, but dependents cannot just
* rely on inverse field names because these dependents are a subset.
*/
this.id = id;
/**
* 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;
/**
* Reference to the model manager.
*/
this.modelManager = modelManager;
/**
* 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.
*
* FIXME: currently flatten map due to bug, improvement is planned
* see Task-id 2261221
*/
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.
* 4 types of relation are supported: 'one2one', 'one2many', 'many2one'
* and 'many2many'.
*/
this.relationType = relationType;
/**
* 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 many2many field.
*
* @param {string} modelName
* @param {Object} [options]
* @returns {Object}
*/
static many2many(modelName, options) {
return ModelField._relation(modelName, Object.assign({}, options, { relationType: 'many2many' }));
}
/**
* Define a many2one field.
*
* @param {string} modelName
* @param {Object} [options]
* @returns {Object}
*/
static many2one(modelName, options) {
return ModelField._relation(modelName, Object.assign({}, options, { relationType: 'many2one' }));
}
/**
* Define a one2many field.
*
* @param {string} modelName
* @param {Object} [options]
* @returns {Object}
*/
static one2many(modelName, options) {
return ModelField._relation(modelName, Object.assign({}, options, { relationType: 'one2many' }));
}
/**
* Define a one2one field.
*
* @param {string} modelName
* @param {Object} [options]
* @returns {Object}
*/
static one2one(modelName, options) {
return ModelField._relation(modelName, Object.assign({}, options, { relationType: 'one2one' }));
}
/**
* Combine current field definition with provided field definition and
* return the combined field definition. Useful to track list of hashes of
* a given field, which is necessary for the working of dependent fields
* (computed and related fields).
*
* @param {ModelField} field
* @returns {ModelField}
*/
combine(field) {
return new ModelField(Object.assign({}, this, {
dependencies: this.dependencies.concat(field.dependencies),
hashes: this.hashes.concat(field.hashes),
}));
}
/**
* Perform computation of this field, which is either a computed or related
* field.
*
* @param {mail.model} record
*/
doCompute(record) {
if (this.compute) {
this.set(record, record[this.compute]());
return;
}
if (this.related) {
this.set(record, this._computeRelated(record));
return;
}
throw new Error("No compute method defined on this field definition");
}
/**
* Get the env with messaging.
*
* @returns {mail/static/src/env/env.js}
*/
get env() {
return this.modelManager.env;
}
/**
* Get the value associated to this field. Relations must convert record
* local ids to records.
*
* @param {mail.model} record
* @returns {any}
*/
get(record) {
if (this.fieldType === 'attribute') {
return this.read(record);
}
if (this.fieldType === 'relation') {
const OtherModel = this.env.models[this.to];
if (['one2one', 'many2one'].includes(this.relationType)) {
return OtherModel.get(this.read(record));
}
const res = [];
for (const localId of this.read(record)) {
res.push(OtherModel.get(localId));
}
return res;
}
throw new Error(`cannot get field with unsupported type ${this.fieldType}.`);
}
/**
* 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 {mail.model} record
* @returns {any}
*/
read(record) {
return record.__values[this.fieldName];
}
/**
* Set a value on this field. The format of the value comes from business
* code.
*
* @param {mail.model} record
* @param {any} newVal
*/
set(record, newVal) {
if (this.fieldType === 'attribute') {
if (this.read(record) === newVal) {
return;
}
this.write(record, newVal);
}
if (this.fieldType === 'relation') {
for (const val of newVal) {
switch (val[0]) {
case 'create':
this._setRelationCreate(record, val[1]);
break;
case 'insert':
this._setRelationInsert(record, val[1]);
break;
case 'insert-and-replace':
this._setRelationInsertAndReplace(record, val[1]);
break;
case 'link':
this._setRelationLink(record, val[1]);
break;
case 'replace':
// TODO IMP replace should not unlink-all (task-2270780)
this._setRelationUnlink(record, null);
this._setRelationLink(record, val[1]);
break;
case 'unlink':
this._setRelationUnlink(record, val[1]);
break;
case 'unlink-all':
this._setRelationUnlink(record, null);
break;
}
}
}
}
/**
* Set a value in state associated to this field. Value corresponds exactly
* that what is stored on this field, like local id or list of local ids
* for a relational field. If the value changes, dependent fields are
* automatically registered for (re-)computation.
*
* @param {mail.model} record
* @param {any} newVal
* @param {Object} [param2={}]
* @param {Object} [param2.registerDependents=true] If set, write
* on this field with changed value registers dependent fields for compute.
* Of course, we almost always want to register them, so that they reflect
* the value with their dependencies. Disabling this feature prevents
* useless potentially heavy computation, like when setting default values.
*/
write(record, newVal, { registerDependents = true } = {}) {
if (this._containsRecords(newVal)) {
throw new Error("Forbidden write operation with records!!");
}
record.__values[this.fieldName] = newVal;
record.__state++;
if (!registerDependents) {
return;
}
// flag all dependent fields for compute
const Model = record.constructor;
for (const dependent of this.dependents) {
const [hash, currentFieldName, relatedFieldName] = dependent.split(
this.modelManager.DEPENDENT_INNER_SEPARATOR
);
const field = Model.fields[currentFieldName];
if (relatedFieldName) {
if (['one2many', 'many2many'].includes(field.relationType)) {
for (const otherRecord of record[currentFieldName]) {
const OtherModel = otherRecord.constructor;
const field = OtherModel.fields[relatedFieldName];
if (field && field.hashes.includes(hash)) {
this.modelManager.registerToComputeField(otherRecord, field);
}
}
} else {
const otherRecord = record[currentFieldName];
if (!otherRecord) {
continue;
}
const OtherModel = otherRecord.constructor;
const field = OtherModel.fields[relatedFieldName];
if (field && field.hashes.includes(hash)) {
this.modelManager.registerToComputeField(otherRecord, field);
}
}
} else {
if (field && field.hashes.includes(hash)) {
this.modelManager.registerToComputeField(record, field);
}
}
}
}
//--------------------------------------------------------------------------
// Private
//--------------------------------------------------------------------------
/**
* @private
* @param {string} modelName
* @param {Object} [options]
*/
static _relation(modelName, options) {
return Object.assign({
fieldType: 'relation',
to: modelName,
}, options);
}
/**
* Compute method when this field is related.
*
* @private
* @param {mail.model} record
*/
_computeRelated(record) {
const [relationName, relatedFieldName] = this.related.split('.');
const Model = record.constructor;
const relationField = Model.fields[relationName];
if (['one2many', 'many2many'].includes(relationField.relationType)) {
const newVal = [];
for (const otherRecord of record[relationName]) {
const OtherModel = otherRecord.constructor;
const otherField = OtherModel.fields[relatedFieldName];
const otherValue = otherField.get(otherRecord);
if (otherValue) {
if (otherValue instanceof Array) {
// avoid nested array if otherField is x2many too
// TODO IMP task-2261221
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 OtherModel = otherRecord.constructor;
const otherField = OtherModel.fields[relatedFieldName];
const newVal = otherField.get(otherRecord);
if (this.fieldType === 'relation') {
if (newVal) {
return [['replace', newVal]];
} else {
return [['unlink-all']];
}
}
return newVal;
}
if (this.fieldType === 'relation') {
return [];
}
}
/**
* Determines whether the provided value contains some records. Useful to
* prevent writing records directly in state of this field, which should be
* treated as buggy design. Indeed, state of field should only contain
* either a primitive type or a simple datastructure containing itself
* simple datastructures too.
*
* @private
* @param {any} val
* @returns {boolean}
*/
_containsRecords(val) {
if (!val) {
return false;
}
if (val instanceof this.env.models['mail.model']) {
return true;
}
if (!(val instanceof Array)) {
return false;
}
if (val.length > 0 && val[0] instanceof this.env.models['mail.model']) {
return true;
}
return false;
}
/**
* Converts given value to expected format for x2many processing, which is
* an array of localId.
*
* @private
* @param {string|mail.model|<mail.model|string>[]} newValue
* @returns {string[]}
*/
_setRelationConvertX2ManyValue(newValue) {
if (newValue instanceof Array) {
return newValue.map(v => this._setRelationConvertX2OneValue(v));
}
return [this._setRelationConvertX2OneValue(newValue)];
}
/**
* Converts given value to expected format for x2one processing, which is
* a localId.
*
* @private
* @param {string|mail.model} newValue
* @returns {string}
*/
_setRelationConvertX2OneValue(newValue) {
return newValue instanceof this.env.models['mail.model'] ? newValue.localId : newValue;
}
/**
* Set on this relational field in 'create' mode. Basically data provided
* during set on this relational field contain data to create new records,
* which themselves must be linked to record of this field by means of
* this field.
*
* @private
* @param {mail.model} record
* @param {Object|Object[]} data
*/
_setRelationCreate(record, data) {
const OtherModel = this.env.models[this.to];
let other;
if (['one2one', 'many2one'].includes(this.relationType)) {
other = OtherModel.create(data);
} else {
if (data instanceof Array) {
other = data.map(d => OtherModel.create(d));
} else {
other = OtherModel.create(data);
}
}
this._setRelationLink(record, other);
}
/**
* 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 {mail.model} record
* @param {Object|Object[]} data
*/
_setRelationInsert(record, data) {
const OtherModel = this.env.models[this.to];
let other;
if (['one2one', 'many2one'].includes(this.relationType)) {
other = OtherModel.insert(data);
} else {
if (data instanceof Array) {
other = data.map(d => OtherModel.insert(d));
} else {
other = OtherModel.insert(data);
}
}
this._setRelationLink(record, other);
}
/**
* 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 {mail.model} record
* @param {Object|Object[]} data
*/
_setRelationInsertAndReplace(record, data) {
// unlink must be done before insert:
// because unlink might trigger delete due to causality and new data
// shouldn't be deleted just after being inserted
// TODO IMP insert-and-replace should not unlink-all (task-2270780)
this._setRelationUnlink(record, null);
const OtherModel = this.env.models[this.to];
const other = OtherModel.insert(data);
this._setRelationLink(record, other);
}
/**
* Set a 'link' operation on this relational field.
*
* @private
* @param {string|string[]|mail.model|mail.model[]} newValue
*/
_setRelationLink(record, newValue) {
const Model = record.constructor;
if (!Model.get(record)) {
// current record may be deleted due to causality
return;
}
switch (this.relationType) {
case 'many2many':
case 'one2many':
this._setRelationLinkX2Many(record, newValue);
break;
case 'many2one':
this._setRelationLinkMany2One(record, newValue);
break;
case 'one2one':
this._setRelationLinkOne2One(record, newValue);
break;
}
}
/**
* Handling of a `set` 'link' of a x2many relational field.
*
* @private
* @param {mail.model} record
* @param {string|mail.model|<mail.model|string>[]} newValue
*/
_setRelationLinkX2Many(record, newValue) {
// convert newValue to array of localId
const newLocalIds = this._setRelationConvertX2ManyValue(newValue);
const OtherModel = this.env.models[this.to];
const prevLocalIds = this.read(record);
const newOtherRecords = newLocalIds
.map(newLocalId => OtherModel.get(newLocalId))
.filter(newOtherRecord => {
// other record may be deleted due to causality, avoid linking
// deleted records
if (!newOtherRecord) {
return false;
}
// other record already linked, avoid linking twice
if (prevLocalIds.has(newOtherRecord.localId)) {
return false;
}
return true;
});
if (newOtherRecords.length === 0) {
return;
}
// link other records to current record
for (const newOtherRecord of newOtherRecords) {
prevLocalIds.add(newOtherRecord.localId);
}
this.write(record, prevLocalIds);
// link current record to other records
for (const newOtherRecord of newOtherRecords) {
newOtherRecord.update({
[this.inverse]: [['link', record]],
});
}
}
/**
* Handling of a `set` 'link' of a many2one relational field.
*
* @private
* @param {mail.model} record
* @param {string|mail.model} newValue
*/
_setRelationLinkMany2One(record, newValue) {
// convert newValue to localId
const newLocalId = this._setRelationConvertX2OneValue(newValue);
const OtherModel = this.env.models[this.to];
const prevLocalId = this.read(record);
// other record already linked, avoid linking twice
if (prevLocalId === newLocalId) {
return;
}
// unlink previous other record from current record
this.write(record, undefined);
const prevOtherRecord = OtherModel.get(prevLocalId);
// there may be no previous other record or the previous other record
// may be deleted due to causality
if (prevOtherRecord) {
// unlink current record from previous other record
prevOtherRecord.update({
[this.inverse]: [['unlink', record]],
});
}
const newOtherRecord = OtherModel.get(newLocalId);
// other record may be deleted due to causality, avoid linking
// deleted records
if (!newOtherRecord) {
return;
}
// link other record to current records
this.write(record, newLocalId);
// link current record to other record
newOtherRecord.update({
[this.inverse]: [['link', record]],
});
}
/**
* Handling of a `set` 'link' of an one2one relational field.
*
* @private
* @param {mail.model} record
* @param {string|mail.model} value
*/
_setRelationLinkOne2One(record, newValue) {
// convert newValue to localId
const newLocalId = this._setRelationConvertX2OneValue(newValue);
const prevLocalId = this.read(record);
const OtherModel = this.env.models[this.to];
// other record already linked, avoid linking twice
if (prevLocalId === newLocalId) {
return;
}
// unlink previous other record from current record
this.write(record, undefined);
const prevOtherRecord = OtherModel.get(prevLocalId);
// there may be no previous other record or the previous other record
// may be deleted due to causality
if (prevOtherRecord) {
// unlink current record from previous other record
prevOtherRecord.update({
[this.inverse]: [['unlink', record]],
});
// apply causality
if (this.isCausal) {
prevOtherRecord.delete();
}
}
const newOtherRecord = OtherModel.get(newLocalId);
// other record may be deleted due to causality, avoid linking deleted
// records
if (!newOtherRecord) {
return;
}
// link other record to current record
this.write(record, newLocalId);
// link current record to other record
newOtherRecord.update({
[this.inverse]: [['link', record]],
});
}
/**
* Set an 'unlink' operation on this relational field.
*
* @private
* @param {mail.model} record
* @param {string|string[]|mail.model|mail.model[]|null} newValue
*/
_setRelationUnlink(record, newValue) {
const Model = record.constructor;
if (!Model.get(record)) {
// current record may be deleted due to causality
return;
}
switch (this.relationType) {
case 'many2many':
case 'one2many':
this._setRelationUnlinkX2Many(record, newValue);
break;
case 'many2one':
this._setRelationUnlinkMany2One(record);
break;
case 'one2one':
this._setRelationUnlinkOne2One(record);
break;
}
}
/**
* Handling of a `set` 'unlink' of a x2many relational field.
*
* @private
* @param {mail.model} record
* @param {string|mail.model|<string|mail.model>[]|null} newValue
*/
_setRelationUnlinkX2Many(record, newValue) {
// convert newValue to array of localId, null is considered unlink all
const otherLocalIds = newValue === null
? [...this.read(record)]
: this._setRelationConvertX2ManyValue(newValue);
const OtherModel = this.env.models[this.to];
const prevLocalIds = this.read(record);
let isDeleting = false;
for (const otherLocalId of otherLocalIds) {
const wasDeleted = prevLocalIds.delete(otherLocalId);
if (wasDeleted) {
isDeleting = true;
}
}
if (!isDeleting) {
return;
}
// unlink other record from current record
this.write(record, prevLocalIds);
for (const otherLocalId of otherLocalIds) {
const otherRecord = OtherModel.get(otherLocalId);
// other record may be deleted due to causality, avoid useless
// processing
if (otherRecord) {
// unlink current record from other record
otherRecord.update({
[this.inverse]: [['unlink', record]],
});
}
}
}
/**
* Handling of a `set` 'unlink' of a many2one relational field.
*
* @private
* @param {mail.model} record
*/
_setRelationUnlinkMany2One(record) {
const otherLocalId = this.read(record);
const OtherModel = this.env.models[this.to];
// other record already unlinked, avoid useless processing
if (!otherLocalId) {
return;
}
// unlink other record from current record
this.write(record, undefined);
const otherRecord = OtherModel.get(otherLocalId);
// other record may be deleted due to causality, avoid useless
// processing
if (otherRecord) {
// unlink current record from other record
otherRecord.update({
[this.inverse]: [['unlink', record]],
});
}
}
/**
* Handling of a `set` 'unlink' of an one2one relational field.
*
* @private
* @param {mail.model} record
*/
_setRelationUnlinkOne2One(record) {
const otherLocalId = this.read(record);
const OtherModel = this.env.models[this.to];
// other record already unlinked, avoid useless processing
if (!otherLocalId) {
return;
}
// unlink other record from current record
this.write(record, undefined);
const otherRecord = OtherModel.get(otherLocalId);
// other record may be deleted due to causality, avoid useless
// processing
if (otherRecord) {
// unlink current record from other record
otherRecord.update({
[this.inverse]: [['unlink', record]],
});
}
}
}
return ModelField;
});