moved becca to top level source dir

src/becca/entities/attribute.js

@@ -0,0 +1,167 @@
+"use strict";
+
+const Note = require('./note.js');
+const AbstractEntity = require("./abstract_entity.js");
+const sql = require("../../services/sql.js");
+const dateUtils = require("../../services/date_utils.js");
+const promotedAttributeDefinitionParser = require("../../services/promoted_attribute_definition_parser");
+
+class Attribute extends AbstractEntity {
+    static get entityName() { return "attributes"; }
+    static get primaryKeyName() { return "attributeId"; }
+    static get hashedProperties() { return ["attributeId", "noteId", "type", "name", "value", "isInheritable"]; }
+
+    constructor(row) {
+        super();
+
+        /** @param {string} */
+        this.attributeId = row.attributeId;
+        /** @param {string} */
+        this.noteId = row.noteId;
+        /** @param {string} */
+        this.type = row.type;
+        /** @param {string} */
+        this.name = row.name;
+        /** @param {int} */
+        this.position = row.position;
+        /** @param {string} */
+        this.value = row.value;
+        /** @param {boolean} */
+        this.isInheritable = !!row.isInheritable;
+
+        if (this.attributeId) {
+            this.becca.attributes[this.attributeId] = this;
+        }
+
+        if (!(this.noteId in this.becca.notes)) {
+            // entities can come out of order in sync, create skeleton which will be filled later
+            this.becca.notes[this.noteId] = new Note({noteId: this.noteId});
+        }
+
+        this.becca.notes[this.noteId].ownedAttributes.push(this);
+
+        const key = `${this.type}-${this.name.toLowerCase()}`;
+        this.becca.attributeIndex[key] = this.becca.attributeIndex[key] || [];
+        this.becca.attributeIndex[key].push(this);
+
+        const targetNote = this.targetNote;
+
+        if (targetNote) {
+            targetNote.targetRelations.push(this);
+        }
+    }
+
+    get isAffectingSubtree() {
+        return this.isInheritable
+            || (this.type === 'relation' && this.name === 'template');
+    }
+
+    isAutoLink() {
+        return this.type === 'relation' && ['internalLink', 'imageLink', 'relationMapLink', 'includeNoteLink'].includes(this.name);
+    }
+
+    get note() {
+        return this.becca.notes[this.noteId];
+    }
+
+    get targetNote() {
+        if (this.type === 'relation') {
+            return this.becca.notes[this.value];
+        }
+    }
+
+    /**
+     * @returns {Note|null}
+     */
+    getNote() {
+        return this.becca.getNote(this.noteId);
+    }
+
+    /**
+     * @returns {Note|null}
+     */
+    getTargetNote() {
+        if (this.type !== 'relation') {
+            throw new Error(`Attribute ${this.attributeId} is not relation`);
+        }
+
+        if (!this.value) {
+            return null;
+        }
+
+        return this.becca.getNote(this.value);
+    }
+
+    /**
+     * @return {boolean}
+     */
+    isDefinition() {
+        return this.type === 'label' && (this.name.startsWith('label:') || this.name.startsWith('relation:'));
+    }
+
+    getDefinition() {
+        return promotedAttributeDefinitionParser.parse(this.value);
+    }
+
+    getDefinedName() {
+        if (this.type === 'label' && this.name.startsWith('label:')) {
+            return this.name.substr(6);
+        } else if (this.type === 'label' && this.name.startsWith('relation:')) {
+            return this.name.substr(9);
+        } else {
+            return this.name;
+        }
+    }
+
+    beforeSaving() {
+        if (!this.value) {
+            if (this.type === 'relation') {
+                throw new Error(`Cannot save relation ${this.name} since it does not target any note.`);
+            }
+
+            // null value isn't allowed
+            this.value = "";
+        }
+
+        if (this.position === undefined) {
+            // TODO: can be calculated from becca
+            this.position = 1 + sql.getValue(`SELECT COALESCE(MAX(position), 0) FROM attributes WHERE noteId = ?`, [this.noteId]);
+        }
+
+        if (!this.isInheritable) {
+            this.isInheritable = false;
+        }
+
+        super.beforeSaving();
+
+        this.becca.attributes[this.attributeId] = this;
+    }
+
+    getPojo() {
+        return {
+            attributeId: this.attributeId,
+            noteId: this.noteId,
+            type: this.type,
+            name: this.name,
+            position: this.position,
+            value: this.value,
+            isInheritable: this.isInheritable,
+            utcDateModified: dateUtils.utcNowDateTime(),
+            isDeleted: false
+        };
+    }
+
+    createClone(type, name, value, isInheritable) {
+        return new Attribute({
+            noteId: this.noteId,
+            type: type,
+            name: name,
+            value: value,
+            position: this.position,
+            isInheritable: isInheritable,
+            utcDateModified: this.utcDateModified
+        });
+    }
+}
+
+module.exports = Attribute;