mirror of
https://github.com/laurent22/joplin.git
synced 2024-12-24 10:27:10 +02:00
427 lines
13 KiB
TypeScript
427 lines
13 KiB
TypeScript
const { time } = require('lib/time-utils.js');
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interface Term {
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name: string
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value: string
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negated: boolean
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}
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enum Relation {
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OR = 'OR',
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AND = 'AND',
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}
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enum Operation {
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UNION = 'UNION',
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INTERSECT = 'INTERSECT'
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}
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enum Requirement {
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EXCLUSION = 'EXCLUSION',
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INCLUSION = 'INCLUSION'
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}
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const notebookFilter = (terms: Term[], conditions: string[], params: string[], withs: string[]) => {
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const notebooks = terms.filter(x => x.name === 'notebook' && !x.negated).map(x => x.value);
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if (notebooks.length === 0) return;
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const likes = [];
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for (let i = 0; i < notebooks.length; i++) {
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likes.push('folders.title LIKE ?');
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}
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const relevantFolders = likes.join(' OR ');
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const withInNotebook = `
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notebooks_in_scope(id)
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AS (
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SELECT folders.id
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FROM folders
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WHERE id
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IN (
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SELECT id
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FROM folders
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WHERE ${relevantFolders}
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)
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UNION ALL
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SELECT folders.id
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FROM folders
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JOIN notebooks_in_scope
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ON folders.parent_id=notebooks_in_scope.id
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)`;
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const where = `
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AND ROWID IN (
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SELECT notes_normalized.ROWID
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FROM notebooks_in_scope
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JOIN notes_normalized
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ON notebooks_in_scope.id=notes_normalized.parent_id
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)`;
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withs.push(withInNotebook);
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params.push(...notebooks);
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conditions.push(where);
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};
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const getOperator = (requirement: Requirement, relation: Relation): Operation => {
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if (relation === 'AND' && requirement === 'INCLUSION') { return Operation.INTERSECT; } else { return Operation.UNION; }
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};
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const filterByTableName = (
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terms: Term[],
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conditions: string[],
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params: string[],
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relation: Relation,
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noteIDs: string,
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requirement: Requirement,
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withs: string[],
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tableName: string
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) => {
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const operator: Operation = getOperator(requirement, relation);
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const values = terms.map(x => x.value);
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let withCondition = null;
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if (relation === Relation.OR && requirement === Requirement.EXCLUSION) {
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// with_${requirement}_${tableName} is added to the names to make them unique
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withs.push(`
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all_notes_with_${requirement}_${tableName}
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AS (
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SELECT DISTINCT note_${tableName}.note_id AS id FROM note_${tableName}
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)`);
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const notesWithoutExcludedField = `
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SELECT * FROM (
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SELECT *
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FROM all_notes_with_${requirement}_${tableName}
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EXCEPT ${noteIDs}
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)`;
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const requiredNotes = [];
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for (let i = 0; i < values.length; i++) {
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requiredNotes.push(notesWithoutExcludedField);
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}
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const requiredNotesQuery = requiredNotes.join(' UNION ');
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// We need notes without atleast one excluded (tag/resource)
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withCondition = `
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notes_with_${requirement}_${tableName}
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AS (
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${requiredNotesQuery}
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)`;
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} else {
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const requiredNotes = [];
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for (let i = 0; i < values.length; i++) {
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requiredNotes.push(noteIDs);
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}
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const requiredNotesQuery = requiredNotes.join(` ${operator} `);
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// Notes with any/all values depending upon relation and requirement
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withCondition = `
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notes_with_${requirement}_${tableName}
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AS (
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SELECT note_${tableName}.note_id as id
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FROM note_${tableName}
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WHERE
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${operator === 'INTERSECT' ? 1 : 0} ${operator}
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${requiredNotesQuery}
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)`;
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}
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// Get the ROWIDs that satisfy the condition so we can filter the result
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const whereCondition = `
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${relation} ROWID ${(relation === 'AND' && requirement === 'EXCLUSION') ? 'NOT' : ''}
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IN (
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SELECT notes_normalized.ROWID
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FROM notes_with_${requirement}_${tableName}
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JOIN notes_normalized
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ON notes_with_${requirement}_${tableName}.id=notes_normalized.id
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)`;
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withs.push(withCondition);
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params.push(...values);
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conditions.push(whereCondition);
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};
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const resourceFilter = (terms: Term[], conditions: string[], params: string[], relation: Relation, withs: string[]) => {
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const tableName = 'resources';
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const resourceIDs = `
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SELECT resources.id
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FROM resources
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WHERE resources.mime LIKE ?`;
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const noteIDsWithResource = `
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SELECT note_resources.note_id AS id
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FROM note_resources
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WHERE note_resources.is_associated=1
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AND note_resources.resource_id IN (${resourceIDs})`;
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const requiredResources = terms.filter(x => x.name === 'resource' && !x.negated);
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const excludedResources = terms.filter(x => x.name === 'resource' && x.negated);
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if (requiredResources.length > 0) {
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filterByTableName(requiredResources, conditions, params, relation, noteIDsWithResource, Requirement.INCLUSION, withs, tableName);
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}
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if (excludedResources.length > 0) {
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filterByTableName(excludedResources, conditions, params, relation, noteIDsWithResource, Requirement.EXCLUSION, withs, tableName);
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}
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};
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const tagFilter = (terms: Term[], conditions: string[], params: string[], relation: Relation, withs: string[]) => {
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const tableName = 'tags';
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const tagIDs = `
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SELECT tags.id
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FROM tags
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WHERE tags.title
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LIKE ?`;
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const noteIDsWithTag = `
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SELECT note_tags.note_id AS id
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FROM note_tags
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WHERE note_tags.tag_id IN (${tagIDs})`;
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const requiredTags = terms.filter(x => x.name === 'tag' && !x.negated);
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const excludedTags = terms.filter(x => x.name === 'tag' && x.negated);
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if (requiredTags.length > 0) {
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filterByTableName(requiredTags, conditions, params, relation, noteIDsWithTag, Requirement.INCLUSION, withs, tableName);
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}
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if (excludedTags.length > 0) {
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filterByTableName(excludedTags, conditions, params, relation, noteIDsWithTag, Requirement.EXCLUSION, withs, tableName);
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}
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};
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const genericFilter = (terms: Term[], conditions: string[], params: string[], relation: Relation, fieldName: string) => {
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if (fieldName === 'iscompleted' || fieldName === 'type') {
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// Faster query when values can only take two distinct values
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biConditionalFilter(terms, conditions, relation, fieldName);
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return;
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}
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const getCondition = (term: Term) => {
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if (fieldName === 'sourceurl') { return `notes_normalized.source_url ${term.negated ? 'NOT' : ''} LIKE ?`; } else { return `notes_normalized.${fieldName === 'date' ? `user_${term.name}_time` : `${term.name}`} ${term.negated ? '<' : '>='} ?`; }
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};
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terms.forEach(term => {
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conditions.push(`
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${relation} ROWID IN (
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SELECT ROWID
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FROM notes_normalized
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WHERE ${getCondition(term)}
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)`);
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params.push(term.value);
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});
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};
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const biConditionalFilter = (terms: Term[], conditions: string[], relation: Relation, filterName: string) => {
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const getCondition = (filterName: string , value: string, relation: Relation) => {
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const tableName = (relation === 'AND') ? 'notes_fts' : 'notes_normalized';
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if (filterName === 'type') {
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return `${tableName}.is_todo IS ${value === 'todo' ? 1 : 0}`;
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} else if (filterName === 'iscompleted') {
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return `${tableName}.is_todo IS 1 AND ${tableName}.todo_completed IS ${value === '1' ? 'NOT 0' : '0'}`;
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} else {
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throw new Error('Invalid filter name.');
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}
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};
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const values = terms.map(x => x.value);
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// AND and OR are handled differently because FTS restricts how OR can be used.
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values.forEach(value => {
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if (relation === 'AND') {
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conditions.push(`
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AND ${getCondition(filterName, value, relation)}`);
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}
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if (relation === 'OR') {
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conditions.push(`
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OR ROWID IN (
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SELECT ROWID
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FROM notes_normalized
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WHERE ${getCondition(filterName, value, relation)}
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)`);
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}
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});
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};
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const typeFilter = (terms: Term[], conditions: string[], params: string[], relation: Relation) => {
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const typeTerms = terms.filter(x => x.name === 'type');
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genericFilter(typeTerms, conditions, params, relation, 'type');
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};
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const completedFilter = (terms: Term[], conditions: string[], params: string[], relation: Relation) => {
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const completedTerms = terms.filter(x => x.name === 'iscompleted');
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genericFilter(completedTerms, conditions, params, relation, 'iscompleted');
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};
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const locationFilter = (terms: Term[], conditons: string[], params: string[], relation: Relation) => {
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const locationTerms = terms.filter(x => x.name === 'latitude' || x.name === 'longitude' || x.name === 'altitude');
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genericFilter(locationTerms, conditons, params, relation, 'location');
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};
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const dateFilter = (terms: Term[], conditons: string[], params: string[], relation: Relation) => {
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const getUnixMs = (date:string): string => {
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const yyyymmdd = /^[0-9]{8}$/;
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const yyyymm = /^[0-9]{6}$/;
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const yyyy = /^[0-9]{4}$/;
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const smartValue = /^(day|week|month|year)-([0-9]+)$/i;
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if (yyyymmdd.test(date)) {
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return time.formatLocalToMs(date, 'YYYYMMDD').toString();
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} else if (yyyymm.test(date)) {
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return time.formatLocalToMs(date, 'YYYYMM').toString();
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} else if (yyyy.test(date)) {
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return time.formatLocalToMs(date, 'YYYY').toString();
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} else if (smartValue.test(date)) {
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const match = smartValue.exec(date);
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const timeUnit = match[1]; // eg. day, week, month, year
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const num = Number(match[2]); // eg. 1, 12, 15
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return time.goBackInTime(Date.now(), num, timeUnit);
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} else {
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throw new Error('Invalid date format!');
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}
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};
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const dateTerms = terms.filter(x => x.name === 'created' || x.name === 'updated');
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const unixDateTerms = dateTerms.map(term => { return { ...term, value: getUnixMs(term.value) }; });
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genericFilter(unixDateTerms, conditons, params, relation, 'date');
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};
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const sourceUrlFilter = (terms: Term[], conditons: string[], params: string[], relation: Relation) => {
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const urlTerms = terms.filter(x => x.name === 'sourceurl');
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genericFilter(urlTerms, conditons, params, relation, 'sourceurl');
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};
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const textFilter = (terms: Term[], conditions: string[], params: string[], relation: Relation, fuzzy: Boolean) => {
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const addExcludeTextConditions = (excludedTerms: Term[], conditions:string[], params: string[], relation: Relation) => {
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const type = excludedTerms[0].name === 'text' ? '' : `.${excludedTerms[0].name}`;
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if (relation === 'AND') {
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conditions.push(`
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AND ROWID NOT IN (
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SELECT ROWID
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FROM notes_fts
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WHERE notes_fts${type} MATCH ?
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)`);
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params.push(excludedTerms.map(x => x.value).join(' OR '));
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}
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if (relation === 'OR') {
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excludedTerms.forEach(term => {
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conditions.push(`
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OR ROWID IN (
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SELECT *
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FROM (
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SELECT ROWID
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FROM notes_fts
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EXCEPT
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SELECT ROWID
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FROM notes_fts
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WHERE notes_fts${type} MATCH ?
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)
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)`);
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params.push(term.value);
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});
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}
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};
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const allTerms = terms.filter(x => x.name === 'title' || x.name === 'body' || x.name === 'text');
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const includedTerms = allTerms.filter(x => !x.negated);
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if (includedTerms.length > 0) {
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conditions.push(`${relation} notes_fts MATCH ?`);
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const termsToMatch = includedTerms.map(term => {
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if (term.name === 'text') return term.value;
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else return `${term.name}:${term.value}`;
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});
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const matchQuery = (fuzzy || (relation === 'OR')) ? termsToMatch.join(' OR ') : termsToMatch.join(' ');
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params.push(matchQuery);
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}
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const excludedTextTerms = allTerms.filter(x => x.name === 'text' && x.negated);
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const excludedTitleTerms = allTerms.filter(x => x.name === 'title' && x.negated);
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const excludedBodyTerms = allTerms.filter(x => x.name === 'body' && x.negated);
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if ((excludedTextTerms.length > 0)) {
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addExcludeTextConditions(excludedTextTerms, conditions, params, relation);
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}
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if (excludedTitleTerms.length > 0) {
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addExcludeTextConditions(excludedTitleTerms, conditions, params, relation);
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}
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if (excludedBodyTerms.length > 0) {
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addExcludeTextConditions(excludedBodyTerms, conditions, params, relation);
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}
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};
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const getDefaultRelation = (terms: Term[]): Relation => {
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const anyTerm = terms.find(term => term.name === 'any');
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if (anyTerm) { return (anyTerm.value === '1') ? Relation.OR : Relation.AND; }
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return Relation.AND;
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};
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const getConnective = (terms: Term[], relation: Relation): string => {
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const notebookTerm = terms.find(x => x.name === 'notebook');
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return (!notebookTerm && (relation === 'OR')) ? 'ROWID=-1' : '1'; // ROWID=-1 acts as 0 (something always false)
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};
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export default function queryBuilder(terms: Term[], fuzzy: boolean) {
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const queryParts: string[] = [];
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const params: string[] = [];
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const withs: string[] = [];
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const relation: Relation = getDefaultRelation(terms);
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queryParts.push(`
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SELECT
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notes_fts.id,
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notes_fts.title,
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offsets(notes_fts) AS offsets,
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matchinfo(notes_fts, 'pcnalx') AS matchinfo,
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notes_fts.user_created_time,
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notes_fts.user_updated_time,
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notes_fts.is_todo,
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notes_fts.todo_completed,
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notes_fts.parent_id
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FROM notes_fts
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WHERE ${getConnective(terms, relation)}`);
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notebookFilter(terms, queryParts, params, withs);
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tagFilter(terms, queryParts, params, relation, withs);
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resourceFilter(terms, queryParts, params, relation, withs);
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textFilter(terms, queryParts, params, relation, fuzzy);
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typeFilter(terms, queryParts, params, relation);
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completedFilter(terms, queryParts, params, relation);
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dateFilter(terms, queryParts, params, relation);
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locationFilter(terms, queryParts, params, relation);
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sourceUrlFilter(terms, queryParts, params, relation);
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let query;
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if (withs.length > 0) {
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query = ['WITH RECURSIVE' , withs.join(',') ,queryParts.join(' ')].join(' ');
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} else {
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query = queryParts.join(' ');
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}
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return { query, params };
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}
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