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{EmbeddedMetadata} from \"./EmbeddedMetadata\";\nimport {EntityMetadata} from \"./EntityMetadata\";\nimport {NamingStrategyInterface} from \"../naming-strategy/NamingStrategyInterface\";\nimport {ColumnMetadata} from \"./ColumnMetadata\";\nimport {UniqueMetadataArgs} from \"../metadata-args/UniqueMetadataArgs\";\n\n/**\n * Unique metadata contains all information about table's unique constraints.\n */\nexport class UniqueMetadata {\n\n // ---------------------------------------------------------------------\n // Public Properties\n // ---------------------------------------------------------------------\n\n /**\n * Entity metadata of the class to which this unique constraint is applied.\n */\n entityMetadata: EntityMetadata;\n\n /**\n * Embedded metadata if this unique was applied on embedded.\n */\n embeddedMetadata?: EmbeddedMetadata;\n\n /**\n * Target class to which metadata is applied.\n */\n target?: Function|string;\n\n /**\n * Unique columns.\n */\n columns: ColumnMetadata[] = [];\n\n /**\n * User specified unique constraint name.\n */\n givenName?: string;\n\n /**\n * User specified column names.\n */\n givenColumnNames?: ((object?: any) => (any[]|{ [key: string]: number }))|string[];\n\n /**\n * Final unique constraint name.\n * If unique constraint name was given by a user then it stores normalized (by naming strategy) givenName.\n * If unique constraint name was not given then its generated.\n */\n name: 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?: UniqueMetadataArgs\n }) {\n this.entityMetadata = options.entityMetadata;\n this.embeddedMetadata = options.embeddedMetadata;\n if (options.columns)\n this.columns = options.columns;\n\n if (options.args) {\n this.target = options.args.target;\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 unique constraint properties.\n * Must be called after all entity metadata's properties map, columns and relations are built.\n */\n build(namingStrategy: NamingStrategyInterface): this {\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 (this.givenColumnNames instanceof Array) {\n columnPropertyPaths = this.givenColumnNames.map(columnName => {\n if (this.embeddedMetadata)\n return this.embeddedMetadata.propertyPath + \".\" + columnName;\n\n return columnName;\n });\n columnPropertyPaths.forEach(propertyPath => map[propertyPath] = 1);\n } else {\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(this.entityMetadata.propertiesMap);\n if (columnsFnResult instanceof Array) {\n columnPropertyPaths = columnsFnResult.map((i: any) => String(i));\n columnPropertyPaths.forEach(name => map[name] = 1);\n } else {\n columnPropertyPaths = Object.keys(columnsFnResult).map((i: any) => String(i));\n Object.keys(columnsFnResult).forEach(columnName => map[columnName] = columnsFnResult[columnName]);\n }\n }\n\n this.columns = columnPropertyPaths.map(propertyName => {\n const columnWithSameName = this.entityMetadata.columns.find(column => column.propertyPath === propertyName);\n if (columnWithSameName) {\n return [columnWithSameName];\n }\n const relationWithSameName = this.entityMetadata.relations.find(relation => relation.isWithJoinColumn && relation.propertyName === propertyName);\n if (relationWithSameName) {\n return relationWithSameName.joinColumns;\n }\n const indexName = this.givenName ? \"\\\"\" + this.givenName + \"\\\" \" : \"\";\n const entityName = this.entityMetadata.targetName;\n throw new Error(`Unique constraint ${indexName}contains column that is missing in the entity (${entityName}): ` + propertyName);\n })\n .reduce((a, b) => a.concat(b));\n }\n\n this.columnNamesWithOrderingMap = Object.keys(map).reduce((updatedMap, key) => {\n const column = this.entityMetadata.columns.find(column => column.propertyPath === key);\n if (column)\n updatedMap[column.databasePath] = map[key];\n\n return updatedMap;\n }, {} as { [key: string]: number });\n\n this.name = this.givenName ? this.givenName : namingStrategy.uniqueConstraintName(this.entityMetadata.tablePath, this.columns.map(column => column.databaseName));\n return this;\n }\n\n}\n"],"sourceRoot":".."}
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