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{ EntityMetadata } from \"./EntityMetadata\"\nimport { IndexMetadataArgs } from \"../metadata-args/IndexMetadataArgs\"\nimport { NamingStrategyInterface } from \"../naming-strategy/NamingStrategyInterface\"\nimport { ColumnMetadata } from \"./ColumnMetadata\"\nimport { EmbeddedMetadata } from \"./EmbeddedMetadata\"\nimport { TypeORMError } from \"../error\"\n\n/**\n * Index metadata contains all information about table's index.\n */\nexport class IndexMetadata {\n // ---------------------------------------------------------------------\n // Public Properties\n // ---------------------------------------------------------------------\n\n /**\n * Entity metadata of the class to which this index is applied.\n */\n entityMetadata: EntityMetadata\n\n /**\n * Embedded metadata if this index was applied on embedded.\n */\n embeddedMetadata?: EmbeddedMetadata\n\n /**\n * Indicates if this index must be unique.\n */\n isUnique: boolean = false\n\n /**\n * The SPATIAL modifier indexes the entire column and does not allow indexed columns to contain NULL values.\n * Works only in MySQL.\n */\n isSpatial: boolean = false\n\n /**\n * The FULLTEXT modifier indexes the entire column and does not allow prefixing.\n * Works only in MySQL.\n */\n isFulltext: boolean = false\n\n /**\n * NULL_FILTERED indexes are particularly useful for indexing sparse columns, where most rows contain a NULL value.\n * In these cases, the NULL_FILTERED index can be considerably smaller and more efficient to maintain than\n * a normal index that includes NULL values.\n *\n * Works only in Spanner.\n */\n isNullFiltered: boolean = false\n\n /**\n * Fulltext parser.\n * Works only in MySQL.\n */\n parser?: string\n\n /**\n * Indicates if this index must synchronize with database index.\n */\n synchronize: boolean = true\n\n /**\n * If true, the index only references documents with the specified field.\n * These indexes use less space but behave differently in some situations (particularly sorts).\n * This option is only supported for mongodb database.\n */\n isSparse?: boolean\n\n /**\n * Builds the index in the background so that building an index an does not block other database activities.\n * This option is only supported for mongodb database.\n */\n isBackground?: boolean\n\n /**\n * Builds the index using the concurrently option.\n * This options is only supported for postgres database.\n */\n isConcurrent?: boolean\n\n /**\n * Specifies a time to live, in seconds.\n * This option is only supported for mongodb database.\n */\n expireAfterSeconds?: number\n\n /**\n * Target class to which metadata is applied.\n */\n target?: Function | string\n\n /**\n * Indexed columns.\n */\n columns: ColumnMetadata[] = []\n\n /**\n * User specified index name.\n */\n givenName?: string\n\n /**\n * User specified column names.\n */\n givenColumnNames?:\n | ((object?: any) => any[] | { [key: string]: number })\n | string[]\n\n /**\n * Final index name.\n * If index name was given by a user then it stores normalized (by naming strategy) givenName.\n * If index name was not given then its generated.\n */\n name: string\n\n /**\n * Index filter condition.\n */\n where?: string\n\n /**\n * Map of column names with order set.\n * Used only by MongoDB driver.\n */\n columnNamesWithOrderingMap: { [key: string]: number } = {}\n\n // ---------------------------------------------------------------------\n // Constructor\n // ---------------------------------------------------------------------\n\n constructor(options: {\n entityMetadata: EntityMetadata\n embeddedMetadata?: EmbeddedMetadata\n columns?: ColumnMetadata[]\n args?: IndexMetadataArgs\n }) {\n this.entityMetadata = options.entityMetadata\n this.embeddedMetadata = options.embeddedMetadata\n if (options.columns) this.columns = options.columns\n\n if (options.args) {\n this.target = options.args.target\n if (\n options.args.synchronize !== null &&\n options.args.synchronize !== undefined\n )\n this.synchronize = options.args.synchronize\n this.isUnique = !!options.args.unique\n this.isSpatial = !!options.args.spatial\n this.isFulltext = !!options.args.fulltext\n this.isNullFiltered = !!options.args.nullFiltered\n this.parser = options.args.parser\n this.where = options.args.where\n this.isSparse = options.args.sparse\n this.isBackground = options.args.background\n this.isConcurrent = options.args.concurrent\n this.expireAfterSeconds = options.args.expireAfterSeconds\n this.givenName = options.args.name\n this.givenColumnNames = options.args.columns\n }\n }\n\n // ---------------------------------------------------------------------\n // Public Build Methods\n // ---------------------------------------------------------------------\n\n /**\n * Builds some depend index properties.\n * Must be called after all entity metadata's properties map, columns and relations are built.\n */\n build(namingStrategy: NamingStrategyInterface): this {\n if (this.synchronize === false) {\n this.name = this.givenName!\n return this\n }\n\n const map: { [key: string]: number } = {}\n\n // if columns already an array of string then simply return it\n if (this.givenColumnNames) {\n let columnPropertyPaths: string[] = []\n if (Array.isArray(this.givenColumnNames)) {\n columnPropertyPaths = this.givenColumnNames.map(\n (columnName) => {\n if (this.embeddedMetadata)\n return (\n this.embeddedMetadata.propertyPath +\n \".\" +\n columnName\n )\n\n return columnName.trim()\n },\n )\n columnPropertyPaths.forEach(\n (propertyPath) => (map[propertyPath] = 1),\n )\n } else {\n // todo: indices in embeds are not implemented in this syntax. deprecate this syntax?\n // if columns is a function that returns array of field names then execute it and get columns names from it\n const columnsFnResult = this.givenColumnNames(\n this.entityMetadata.propertiesMap,\n )\n if (Array.isArray(columnsFnResult)) {\n columnPropertyPaths = columnsFnResult.map((i: any) =>\n String(i),\n )\n columnPropertyPaths.forEach((name) => (map[name] = 1))\n } else {\n columnPropertyPaths = Object.keys(columnsFnResult).map(\n (i: any) => String(i),\n )\n Object.keys(columnsFnResult).forEach(\n (columnName) =>\n (map[columnName] = columnsFnResult[columnName]),\n )\n }\n }\n\n this.columns = columnPropertyPaths\n .map((propertyPath) => {\n const columnWithSameName = this.entityMetadata.columns.find(\n (column) => column.propertyPath === propertyPath,\n )\n if (columnWithSameName) {\n return [columnWithSameName]\n }\n const relationWithSameName =\n this.entityMetadata.relations.find(\n (relation) =>\n relation.isWithJoinColumn &&\n relation.propertyName === propertyPath,\n )\n if (relationWithSameName) {\n return relationWithSameName.joinColumns\n }\n const indexName = this.givenName\n ? '\"' + this.givenName + '\" '\n : \"\"\n const entityName = this.entityMetadata.targetName\n throw new TypeORMError(\n `Index ${indexName}contains column that is missing in the entity (${entityName}): ` +\n propertyPath,\n )\n })\n .reduce((a, b) => a.concat(b))\n }\n\n this.columnNamesWithOrderingMap = Object.keys(map).reduce(\n (updatedMap, key) => {\n const column = this.entityMetadata.columns.find(\n (column) => column.propertyPath === key,\n )\n if (column) updatedMap[column.databasePath] = map[key]\n\n return updatedMap\n },\n {} as { [key: string]: number },\n )\n\n this.name = this.givenName\n ? this.givenName\n : namingStrategy.indexName(\n this.entityMetadata.tableName,\n this.columns.map((column) => column.databaseName),\n this.where,\n )\n return this\n }\n}\n"],"sourceRoot":".."}