adding more "owned" attribute methods to Note entity

This commit is contained in:
zadam 2019-12-01 10:57:28 +01:00
parent 29eb5a8435
commit ba8a8dca7b

View File

@ -196,26 +196,36 @@ class Note extends Entity {
return null;
}
async loadOwnedAttributesToCache() {
this.__ownedAttributeCache = await repository.getEntities(`SELECT * FROM attributes WHERE isDeleted = 0 AND noteId = ?`, [this.noteId]);
return this.__ownedAttributeCache;
}
/**
* @returns {Promise<Attribute[]>} attributes belonging to this specific note (excludes inherited attributes)
* This method is a faster variant of getAttributes() which looks for only owned attributes.
* Use when inheritance is not needed and/or in batch/performance sensitive operations.
*
* This method can be significantly faster than the getAttributes()
* @param {string} [type] - (optional) attribute type to filter
* @param {string} [name] - (optional) attribute name to filter
* @returns {Promise<Attribute[]>} note's "owned" attributes - excluding inherited ones
*/
async getOwnedAttributes(type, name) {
let query = `SELECT * FROM attributes WHERE isDeleted = 0 AND noteId = ?`;
const params = [this.noteId];
if (type) {
query += ` AND type = ?`;
params.push(type);
if (!this.__ownedAttributeCache) {
await this.loadOwnedAttributesToCache();
}
if (name) {
query += ` AND name = ?`;
params.push(name);
if (type && name) {
return this.__ownedAttributeCache.filter(attr => attr.type === type && attr.name === name);
}
else if (type) {
return this.__ownedAttributeCache.filter(attr => attr.type === type);
}
else if (name) {
return this.__ownedAttributeCache.filter(attr => attr.name === name);
}
else {
return this.__ownedAttributeCache.slice();
}
return await repository.getEntities(query, params);
}
/**
@ -237,19 +247,26 @@ class Note extends Entity {
}
/**
* @param {string} [name] - attribute name to filter
* @param {string} [type] - (optional) attribute type to filter
* @param {string} [name] - (optional) attribute name to filter
* @returns {Promise<Attribute[]>} all note's attributes, including inherited ones
*/
async getAttributes(name) {
async getAttributes(type, name) {
if (!this.__attributeCache) {
await this.loadAttributesToCache();
}
if (name) {
if (type && name) {
return this.__attributeCache.filter(attr => attr.type === type && attr.name === name);
}
else if (type) {
return this.__attributeCache.filter(attr => attr.type === type);
}
else if (name) {
return this.__attributeCache.filter(attr => attr.name === name);
}
else {
return this.__attributeCache;
return this.__attributeCache.slice();
}
}
@ -258,7 +275,7 @@ class Note extends Entity {
* @returns {Promise<Attribute[]>} all note's labels (attributes with type label), including inherited ones
*/
async getLabels(name) {
return (await this.getAttributes(name)).filter(attr => attr.type === LABEL);
return await this.getAttributes(LABEL, name);
}
/**
@ -266,7 +283,7 @@ class Note extends Entity {
* @returns {Promise<Attribute[]>} all note's label definitions, including inherited ones
*/
async getLabelDefinitions(name) {
return (await this.getAttributes(name)).filter(attr => attr.type === LABEL_DEFINITION);
return await this.getAttributes(LABEL_DEFINITION, name);
}
/**
@ -274,7 +291,7 @@ class Note extends Entity {
* @returns {Promise<Attribute[]>} all note's relations (attributes with type relation), including inherited ones
*/
async getRelations(name) {
return (await this.getAttributes(name)).filter(attr => attr.type === RELATION);
return await this.getAttributes(RELATION, name);
}
/**
@ -297,7 +314,7 @@ class Note extends Entity {
* @returns {Promise<Attribute[]>} all note's relation definitions including inherited ones
*/
async getRelationDefinitions(name) {
return (await this.getAttributes(name)).filter(attr => attr.type === RELATION_DEFINITION);
return await this.getAttributes(RELATION_DEFINITION, name);
}
/**
@ -306,6 +323,7 @@ class Note extends Entity {
*/
invalidateAttributeCache() {
this.__attributeCache = null;
this.__ownedAttributeCache = null;
}
/** @returns {Promise<void>} */
@ -381,6 +399,15 @@ class Note extends Entity {
return !!await this.getAttribute(type, name);
}
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @returns {Promise<boolean>} true if note has an attribute with given type and name (excluding inherited)
*/
async hasOwnedAttribute(type, name) {
return !!await this.getOwnedAttribute(type, name);
}
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
@ -395,7 +422,7 @@ class Note extends Entity {
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @returns {Promise<string>} attribute value of given type and name or null if no such attribute exists.
* @returns {Promise<string|null>} attribute value of given type and name or null if no such attribute exists.
*/
async getAttributeValue(type, name) {
const attr = await this.getAttribute(type, name);
@ -403,6 +430,17 @@ class Note extends Entity {
return attr ? attr.value : null;
}
/**
* @param {string} type - attribute type (label, relation, etc.)
* @param {string} name - attribute name
* @returns {Promise<string|null>} attribute value of given type and name or null if no such attribute exists.
*/
async getOwnedAttributeValue(type, name) {
const attr = await this.getOwnedAttribute(type, name);
return attr ? attr.value : null;
}
/**
* Based on enabled, attribute is either set or removed.
*
@ -430,7 +468,7 @@ class Note extends Entity {
* @returns {Promise<void>}
*/
async setAttribute(type, name, value) {
const attributes = await this.getOwnedAttributes();
const attributes = await this.loadOwnedAttributesToCache();
let attr = attributes.find(attr => attr.type === type && attr.name === name);
if (attr) {
@ -464,7 +502,7 @@ class Note extends Entity {
* @returns {Promise<void>}
*/
async removeAttribute(type, name, value) {
const attributes = await this.getOwnedAttributes();
const attributes = await this.loadOwnedAttributesToCache();
for (const attribute of attributes) {
if (attribute.type === type && (value === undefined || value === attribute.value)) {
@ -508,36 +546,72 @@ class Note extends Entity {
*/
async hasLabel(name) { return await this.hasAttribute(LABEL, name); }
/**
* @param {string} name - label name
* @returns {Promise<boolean>} true if label exists (excluding inherited)
*/
async hasOwnedLabel(name) { return await this.hasOwnedAttribute(LABEL, name); }
/**
* @param {string} name - relation name
* @returns {Promise<boolean>} true if relation exists (including inherited)
*/
async hasRelation(name) { return await this.hasAttribute(RELATION, name); }
/**
* @param {string} name - relation name
* @returns {Promise<boolean>} true if relation exists (excluding inherited)
*/
async hasOwnedRelation(name) { return await this.hasOwnedAttribute(RELATION, name); }
/**
* @param {string} name - label name
* @returns {Promise<Attribute>} label if it exists, null otherwise
* @returns {Promise<Attribute|null>} label if it exists, null otherwise
*/
async getLabel(name) { return await this.getAttribute(LABEL, name); }
/**
* @param {string} name - label name
* @returns {Promise<Attribute|null>} label if it exists, null otherwise
*/
async getOwnedLabel(name) { return await this.getOwnedAttribute(LABEL, name); }
/**
* @param {string} name - relation name
* @returns {Promise<Attribute>} relation if it exists, null otherwise
* @returns {Promise<Attribute|null>} relation if it exists, null otherwise
*/
async getRelation(name) { return await this.getAttribute(RELATION, name); }
/**
* @param {string} name - relation name
* @returns {Promise<Attribute|null>} relation if it exists, null otherwise
*/
async getOwnedRelation(name) { return await this.getOwnedAttribute(RELATION, name); }
/**
* @param {string} name - label name
* @returns {Promise<string>} label value if label exists, null otherwise
* @returns {Promise<string|null>} label value if label exists, null otherwise
*/
async getLabelValue(name) { return await this.getAttributeValue(LABEL, name); }
/**
* @param {string} name - label name
* @returns {Promise<string|null>} label value if label exists, null otherwise
*/
async getOwnedLabelValue(name) { return await this.getOwnedAttributeValue(LABEL, name); }
/**
* @param {string} name - relation name
* @returns {Promise<string>} relation value if relation exists, null otherwise
* @returns {Promise<string|null>} relation value if relation exists, null otherwise
*/
async getRelationValue(name) { return await this.getAttributeValue(RELATION, name); }
/**
* @param {string} name - relation name
* @returns {Promise<string|null>} relation value if relation exists, null otherwise
*/
async getOwnedRelationValue(name) { return await this.getOwnedAttributeValue(RELATION, name); }
/**
* @param {string} name
* @returns {Promise<Note>|null} target note of the relation or null (if target is empty or note was not found)
@ -548,6 +622,16 @@ class Note extends Entity {
return relation ? await repository.getNote(relation.value) : null;
}
/**
* @param {string} name
* @returns {Promise<Note>|null} target note of the relation or null (if target is empty or note was not found)
*/
async getOwnedRelationTarget(name) {
const relation = await this.getOwnedRelation(name);
return relation ? await repository.getNote(relation.value) : null;
}
/**
* Based on enabled, label is either set or removed.
*