Documentation
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@@ -10,6 +10,7 @@ import (
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log "gitlab.com/gdulai/simpleloglvl"
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)
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// Count represents a count query.
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type Count[T any] struct {
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target schema.Table
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whereStmt string
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@@ -17,6 +18,9 @@ type Count[T any] struct {
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result int64
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}
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// CreateCount returns a new instance of Count.
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//
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// orm is the simpleorm.ORM instance which connects, caches and manages the relations.
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func CreateCount[T any](orm *simpleorm.ORM, whereStmt string, args ...any) (Count[T], error) {
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table, ok := orm.Cache().Get(reflect.TypeFor[T]().Name())
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if !ok {
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@@ -26,14 +30,22 @@ func CreateCount[T any](orm *simpleorm.ORM, whereStmt string, args ...any) (Coun
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return Count[T]{target: *table, whereStmt: whereStmt, args: args}, nil
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}
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// Result returns the result of the count query.
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func (c *Count[T]) Result() int64 {
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return c.result
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}
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// Execute executes the parsed count query against a connection and returns an error if there was any during the execution.
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//
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// conn is the simpleorm.DBConnection which handles the database connection.
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func (c *Count[T]) Execute(conn *simpleorm.DBConnection) error {
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return c.execute(conn, nil)
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}
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// execute executes the parsed count query against a connection and transaction and returns an error if there was any during the execution.
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//
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// conn is the simpleorm.DBConnection which handles the database connection.
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// tx is the sql.Tx transaction which the count query will be run in.
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func (c *Count[T]) execute(conn *simpleorm.DBConnection, tx *sql.Tx) error {
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// Reinit the results, new execution
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c.result = -1
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@@ -10,12 +10,23 @@ import (
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log "gitlab.com/gdulai/simpleloglvl"
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)
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// Insert represents an insert query operation.
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type Insert[T any] struct {
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target schema.Table
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toInsert []T
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results []T
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}
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// Creates a new insert operation for the given model type.
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//
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// Parameters:
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// - orm: The ORM instance that manages the database connection and schema
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// - toInsert: A variadic list of model instances to insert
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//
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// Returns:
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// - Insert[T]: A new insert operation instance
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// - error: An error if the table could not be found in the schema cache
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func NewInsert[T any](orm *simpleorm.ORM, toInsert ...T) (Insert[T], error) {
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table, ok := orm.Cache().Get(reflect.TypeFor[T]().Name())
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if !ok {
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@@ -25,14 +36,40 @@ func NewInsert[T any](orm *simpleorm.ORM, toInsert ...T) (Insert[T], error) {
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return Insert[T]{target: *table, toInsert: toInsert}, nil
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}
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// Returns the results of the insert operation.
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//
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// Returns:
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// - []T: A slice of model instances representing the inserted rows
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func (ins *Insert[T]) Results() []T {
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return ins.results
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}
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// Executes the insert operation using the provided database connection.
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//
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// Parameters:
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// - conn: The database connection to use for executing the query
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//
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// Returns:
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// - error: An error if the operation fails
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func (ins *Insert[T]) Execute(conn *simpleorm.DBConnection) error {
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return ins.execute(conn, nil)
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}
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// Executes the insert operation using the provided database connection or transaction.
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//
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// Parameters:
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// - conn: The database connection to use for executing the query
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// - tx: Optional transaction to use instead of a connection
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//
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// Returns:
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// - error: An error if the operation fails
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//
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// Implementation Details:
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// 1. Constructs the SQL INSERT statement using GetInsertDML
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// 2. Prepares parameters by flattening nested any values
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// 3. Executes the statement and maps results to model instances
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func (ins *Insert[T]) execute(conn *simpleorm.DBConnection, tx *sql.Tx) error {
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dml, err := ins.target.GetInsertDML(len(ins.toInsert))
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if err != nil {
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@@ -17,8 +17,9 @@ type ORM struct {
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cache *cache.SchemaCache
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}
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// Inits the ORM library.
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// Param objs is an array which should be an array of the types which describe the tables.
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// NewOrm inits and creates an instance ORM library.
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//
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// obj is an array which should be an array of the types which describe the tables.
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func NewORM(objs ...any) *ORM {
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typeParsers := make(map[string]*schema.Parser)
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@@ -57,7 +58,7 @@ func NewORM(objs ...any) *ORM {
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return &ORM{cache: cache}
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}
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// Builds the DDL and returns it as a string
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// CreateSchmea builds the DDL and returns it as a string
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func (orm *ORM) CreateSchema() (string, error) {
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var ddl strings.Builder
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