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{NamingStrategyInterface} from \"./NamingStrategyInterface\";\nimport {RandomGenerator} from \"../util/RandomGenerator\";\nimport {camelCase, snakeCase, titleCase} from \"../util/StringUtils\";\nimport {Table} from \"../schema-builder/table/Table\";\n\n/**\n * Naming strategy that is used by default.\n */\nexport class DefaultNamingStrategy implements NamingStrategyInterface {\n\n /**\n * Normalizes table name.\n *\n * @param targetName Name of the target entity that can be used to generate a table name.\n * @param userSpecifiedName For example if user specified a table name in a decorator, e.g. @Entity(\"name\")\n */\n tableName(targetName: string, userSpecifiedName: string|undefined): string {\n return userSpecifiedName ? userSpecifiedName : snakeCase(targetName);\n }\n\n /**\n * Creates a table name for a junction table of a closure table.\n *\n * @param originalClosureTableName Name of the closure table which owns this junction table.\n */\n closureJunctionTableName(originalClosureTableName: string): string {\n return originalClosureTableName + \"_closure\";\n }\n\n columnName(propertyName: string, customName: string, embeddedPrefixes: string[]): string { // todo: simplify\n if (embeddedPrefixes.length)\n return camelCase(embeddedPrefixes.join(\"_\")) + (customName ? titleCase(customName) : titleCase(propertyName));\n\n return customName ? customName : propertyName;\n }\n\n relationName(propertyName: string): string {\n return propertyName;\n }\n\n primaryKeyName(tableOrName: Table|string, columnNames: string[]): string {\n // sort incoming column names to avoid issue when [\"id\", \"name\"] and [\"name\", \"id\"] arrays\n const clonedColumnNames = [...columnNames];\n clonedColumnNames.sort();\n const tableName = tableOrName instanceof Table ? tableOrName.name : tableOrName;\n const replacedTableName = tableName.replace(\".\", \"_\");\n const key = `${replacedTableName}_${clonedColumnNames.join(\"_\")}`;\n return \"PK_\" + RandomGenerator.sha1(key).substr(0, 27);\n }\n\n uniqueConstraintName(tableOrName: Table|string, columnNames: string[]): string {\n // sort incoming column names to avoid issue when [\"id\", \"name\"] and [\"name\", \"id\"] arrays\n const clonedColumnNames = [...columnNames];\n clonedColumnNames.sort();\n const tableName = tableOrName instanceof Table ? tableOrName.name : tableOrName;\n const replacedTableName = tableName.replace(\".\", \"_\");\n const key = `${replacedTableName}_${clonedColumnNames.join(\"_\")}`;\n return \"UQ_\" + RandomGenerator.sha1(key).substr(0, 27);\n }\n\n relationConstraintName(tableOrName: Table|string, columnNames: string[], where?: string): string {\n // sort incoming column names to avoid issue when [\"id\", \"name\"] and [\"name\", \"id\"] arrays\n const clonedColumnNames = [...columnNames];\n clonedColumnNames.sort();\n const tableName = tableOrName instanceof Table ? tableOrName.name : tableOrName;\n const replacedTableName = tableName.replace(\".\", \"_\");\n let key = `${replacedTableName}_${clonedColumnNames.join(\"_\")}`;\n if (where)\n key += `_${where}`;\n\n return \"REL_\" + RandomGenerator.sha1(key).substr(0, 26);\n }\n\n defaultConstraintName(tableOrName: Table|string, columnName: string): string {\n const tableName = tableOrName instanceof Table ? tableOrName.name : tableOrName;\n const replacedTableName = tableName.replace(\".\", \"_\");\n const key = `${replacedTableName}_${columnName}`;\n return \"DF_\" + RandomGenerator.sha1(key).substr(0, 27);\n }\n\n foreignKeyName(tableOrName: Table|string, columnNames: string[]): string {\n // sort incoming column names to avoid issue when [\"id\", \"name\"] and [\"name\", \"id\"] arrays\n const clonedColumnNames = [...columnNames];\n clonedColumnNames.sort();\n const tableName = tableOrName instanceof Table ? tableOrName.name : tableOrName;\n const replacedTableName = tableName.replace(\".\", \"_\");\n const key = `${replacedTableName}_${clonedColumnNames.join(\"_\")}`;\n return \"FK_\" + RandomGenerator.sha1(key).substr(0, 27);\n }\n\n indexName(tableOrName: Table|string, columnNames: string[], where?: string): string {\n // sort incoming column names to avoid issue when [\"id\", \"name\"] and [\"name\", \"id\"] arrays\n const clonedColumnNames = [...columnNames];\n clonedColumnNames.sort();\n const tableName = tableOrName instanceof Table ? tableOrName.name : tableOrName;\n const replacedTableName = tableName.replace(\".\", \"_\");\n let key = `${replacedTableName}_${clonedColumnNames.join(\"_\")}`;\n if (where)\n key += `_${where}`;\n\n return \"IDX_\" + RandomGenerator.sha1(key).substr(0, 26);\n }\n\n checkConstraintName(tableOrName: Table|string, expression: string): string {\n const tableName = tableOrName instanceof Table ? tableOrName.name : tableOrName;\n const replacedTableName = tableName.replace(\".\", \"_\");\n const key = `${replacedTableName}_${expression}`;\n return \"CHK_\" + RandomGenerator.sha1(key).substr(0, 26);\n }\n\n exclusionConstraintName(tableOrName: Table|string, expression: string): string {\n const tableName = tableOrName instanceof Table ? tableOrName.name : tableOrName;\n const replacedTableName = tableName.replace(\".\", \"_\");\n const key = `${replacedTableName}_${expression}`;\n return \"XCL_\" + RandomGenerator.sha1(key).substr(0, 26);\n }\n\n joinColumnName(relationName: string, referencedColumnName: string): string {\n return camelCase(relationName + \"_\" + referencedColumnName);\n }\n\n joinTableName(firstTableName: string,\n secondTableName: string,\n firstPropertyName: string,\n secondPropertyName: string): string {\n return snakeCase(firstTableName + \"_\" + firstPropertyName.replace(/\\./gi, \"_\") + \"_\" + secondTableName);\n }\n\n joinTableColumnDuplicationPrefix(columnName: string, index: number): string {\n return columnName + \"_\" + index;\n }\n\n joinTableColumnName(tableName: string, propertyName: string, columnName?: string): string {\n return camelCase(tableName + \"_\" + (columnName ? columnName : propertyName));\n }\n\n joinTableInverseColumnName(tableName: string, propertyName: string, columnName?: string): string {\n return this.joinTableColumnName(tableName, propertyName, columnName);\n }\n\n /**\n * Adds globally set prefix to the table name.\n * This method is executed no matter if prefix was set or not.\n * Table name is either user's given table name, either name generated from entity target.\n * Note that table name comes here already normalized by #tableName method.\n */\n prefixTableName(prefix: string, tableName: string): string {\n return prefix + tableName;\n }\n\n}\n"],"sourceRoot":".."}
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