class OrderItem

Included Modules

Extended Modules

Defined in:

entities/order_item.cr

Constant Summary

COLUMNS = {"id" => {type: Int64, primary: true, converter: "Int64", db_column_name: "id", crystal_variable_name: id, presence: false, mass_assign: true}, "order_id" => {type: Int64, primary: false, converter: "Int64", db_column_name: "order_id", crystal_variable_name: order_id, presence: false, mass_assign: true}, "product_id" => {type: Int64, primary: false, converter: "Int64", db_column_name: "product_id", crystal_variable_name: product_id, presence: false, mass_assign: true}, "quantity" => {type: Int32, primary: false, converter: "Int32", db_column_name: "quantity", crystal_variable_name: quantity, presence: true, mass_assign: true}, "created_at" => {type: Time, primary: false, converter: "Time", db_column_name: "created_at", crystal_variable_name: created_at, presence: true, mass_assign: true}, "updated_at" => {type: Time, primary: false, converter: "Time", db_column_name: "updated_at", crystal_variable_name: updated_at, presence: true, mass_assign: true}} of Nil => Nil
POLYMORPHISM_SETTINGS = {} of Nil => Nil
RELATION_FILTERS = {} of String => (Clear::SQL::SelectBuilder ->)

Constructors

Class Method Summary

Instance Method Summary

Constructor Detail

def self.create(x : Hash) : self #

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def self.create(x : NamedTuple) : self #

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def self.create(**args) : self #

Build and new model and save it. Returns the model.

The model may not be saved due to validation failure; check the returned model errors? and persisted? flags.


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def self.create!(a : Hash) : self #

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def self.create!(x : NamedTuple) : self #

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def self.create!(**args) : self #

Build and new model and save it. Returns the model.

Returns the newly inserted model Raises an exception if validation failed during the saving process.


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def self.new(h : Hash(String, _), cache : Clear::Model::QueryCache | Nil = nil, persisted = false, fetch_columns = false) #

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def self.new(json : JSON::Any, cache : Clear::Model::QueryCache | Nil = nil, persisted = false) #

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def self.new(t : NamedTuple, persisted = false) #

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def self.new #

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Class Method Detail

def self.__call_relation_filter__(name : String, query : Clear::SQL::SelectBuilder) #

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def self.build(**x : **T) forall T #

Build a new empty model and fill the columns using the NamedTuple in argument.

Returns the new model


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def self.columns #

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def self.connection : String #

Define on which connection the model is living. Useful in case of models living in different databases.

Is set to "default" by default.

See Clear::SQL#init(URI, *opts) for more information about multi-connections.

Example:

 Clear::SQL.init("postgres://postgres@localhost/database_1", connection_pool_size: 5)
 Clear::SQL.init("secondary", "postgres://postgres@localhost/database_2", connection_pool_size: 5)

class ModelA
  include Clear::Model

  # Performs all the queries on `database_1`
  # self.connection = "default"
  column id : Int32, primary: true, presence: false
  column title : String
end

class ModelB
  include Clear::Model

  # Performs all the queries on `database_2`
  self.connection = "secondary"

  column id : Int32, primary: true, presence: false
end

def self.connection=(connection : String) #

Define on which connection the model is living. Useful in case of models living in different databases.

Is set to "default" by default.

See Clear::SQL#init(URI, *opts) for more information about multi-connections.

Example:

 Clear::SQL.init("postgres://postgres@localhost/database_1", connection_pool_size: 5)
 Clear::SQL.init("secondary", "postgres://postgres@localhost/database_2", connection_pool_size: 5)

class ModelA
  include Clear::Model

  # Performs all the queries on `database_1`
  # self.connection = "default"
  column id : Int32, primary: true, presence: false
  column title : String
end

class ModelB
  include Clear::Model

  # Performs all the queries on `database_2`
  self.connection = "secondary"

  column id : Int32, primary: true, presence: false
end

def self.create(x : Array(NamedTuple)) : Array(self) #

Multi-models creation. See Collection#create(**args)

Returns the list of newly created model.

Each model will call an INSERT query. You may want to use Collection#import to insert multiple model more efficiently in one query.


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def self.create!(x : Array(NamedTuple)) : Array(self) #

Multi-models creation. See Collection#create!(**args)

Returns the list of newly created model. Raises exception if any of the model has validation error.


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def self.create_from_json(string_or_io : String | IO, trusted : Bool = false) #

Create a new model from json and save it. Returns the model.

The model may not be saved due to validation failure; check the returned model errors? and persisted? flags. Trusted flag set to true will allow mass assignment without protection, FALSE by default


def self.create_from_json!(string_or_io : String | IO, trusted : Bool = false) #

Create a new model from json and save it. Returns the model.

Returns the newly inserted model Raises an exception if validation failed during the saving process. Trusted flag set to true will allow mass assignment without protection, FALSE by default


def self.find(x) #

Returns a model using primary key equality Returns nil if not found.


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def self.find!(x) #

Returns a model using primary key equality. Raises error if the model is not found.


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def self.from_json(string_or_io : String | IO, trusted : Bool = false) #

Create a new empty model and fill the columns from json. Returns the new model

Trusted flag set to true will allow mass assignment without protection, FALSE by default


def self.full_table_name #

returns the fully qualified and escaped name for this table. add schema if schema is different from 'public' (default schema)

ex: "schema"."table"


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def self.import(array : Enumerable(self), on_conflict : Clear::SQL::InsertQuery -> | Nil = nil) #

Import a bulk of models in one SQL insert query. Each model must be non-persisted.

on_conflict callback can be optionnaly turned on to manage constraints of the database.

Note: Old models are not modified. This method return a copy of the models as saved in the database.

Example:


 users = [ User.new(id: 1), User.new(id: 2), User.new(id: 3)]
 users = User.import(users)

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def self.polymorphic? : Bool #

def self.query #

Return a new empty query SELECT * FROM [my_model_table]. Can be refined after that.


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def self.read_only=(read_only : Bool) #

def self.read_only? : Bool #

def self.schema : Clear::SQL::Symbolic | Nil #

Define the current schema used in PostgreSQL. The value is nil by default, which lead to non-specified schema during the querying, and usage of "public" by PostgreSQL.

This property can be redefined on initialization. Example:

  class MyModel
    include Clear::Model

    self.schema = "my_schema"
  end
  MyModel.query.to_sql # SELECT * FROM "my_schema"."my_models"

def self.schema=(schema : Clear::SQL::Symbolic | Nil) #

Define the current schema used in PostgreSQL. The value is nil by default, which lead to non-specified schema during the querying, and usage of "public" by PostgreSQL.

This property can be redefined on initialization. Example:

  class MyModel
    include Clear::Model

    self.schema = "my_schema"
  end
  MyModel.query.to_sql # SELECT * FROM "my_schema"."my_models"

def self.table : Clear::SQL::Symbolic #

Return the table name setup for this model. By convention, the class name is by default equals to the pluralized underscored string form of the model name. Example:

  MyModel => "my_models"
  Person => "people"
  Project::Info => "project_infos"

The property can be updated at initialization to a custom table name:

  class MyModel
    include Clear::Model

    self.table = "another_table_name"
  end
  MyModel.query.to_sql # SELECT * FROM "another_table_name"

def self.table=(table : Clear::SQL::Symbolic) #

Return the table name setup for this model. By convention, the class name is by default equals to the pluralized underscored string form of the model name. Example:

  MyModel => "my_models"
  Person => "people"
  Project::Info => "project_infos"

The property can be updated at initialization to a custom table name:

  class MyModel
    include Clear::Model

    self.table = "another_table_name"
  end
  MyModel.query.to_sql # SELECT * FROM "another_table_name"

Instance Method Detail

def _cached_order : Order | Nil #

def _cached_product : Product | Nil #

def attributes : Hash(String, Clear::SQL::Any) #

Attributes, used when fetch_columns is true


def cache : Clear::Model::QueryCache | Nil #

def changed? #

Return true if the model is dirty (e.g. one or more fields have been changed.). Return false otherwise.


def clear_change_flags #

Reset the #changed? flag on all columns

The model behave like its not dirty anymore and call to save would apply no changes.

Returns self


def created_at : Time #

Returns the value of #created_at column or throw an exception if the column is not defined.


def created_at=(x : Time) #

Setter for #created_at column.


def created_at_column : Clear::Model::Column(Time, Clear::Model::Converter::TimeConverter) #

Returns the column object used to manage #created_at field

See Clear::Model::Column


def id : Int64 #

Returns the value of #id column or throw an exception if the column is not defined.


def id=(x : Int64) #

Setter for #id column.


def id_column : Clear::Model::Column(Int64, Clear::Model::Converter::Int64Converter) #

Returns the column object used to manage #id field

See Clear::Model::Column


def invalidate_caches #

Invalidate local-to-relation cache and eager-loading cache. Useful to forcefully query again when calling relation defined method


def order : Order #

The method order is a belongs_to relation to Order


def order=(model : Order) #

def order_id : Int64 #

Returns the value of #order_id column or throw an exception if the column is not defined.


def order_id=(x : Int64) #

Setter for #order_id column.


def order_id_column : Clear::Model::Column(Int64, Clear::Model::Converter::Int64Converter) #

Returns the column object used to manage #order_id field

See Clear::Model::Column


def product : Product #

The method product is a belongs_to relation to Product


def product=(model : Product) #

def product_id : Int64 #

Returns the value of #product_id column or throw an exception if the column is not defined.


def product_id=(x : Int64) #

Setter for #product_id column.


def product_id_column : Clear::Model::Column(Int64, Clear::Model::Converter::Int64Converter) #

Returns the column object used to manage #product_id field

See Clear::Model::Column


def quantity : Int32 #

Returns the value of #quantity column or throw an exception if the column is not defined.


def quantity=(x : Int32) #

Setter for #quantity column.


def quantity_column : Clear::Model::Column(Int32, Clear::Model::Converter::Int32Converter) #

Returns the column object used to manage #quantity field

See Clear::Model::Column


def reset(h : Hash(Symbol, _)) #

Set the columns from hash


def reset(h : Hash(String, _)) #

Set the model fields from hash


def reset(t : NamedTuple) #

def reset(from_json : JSON::Any) #

def reset(**t : **T) forall T #

reset flavors


def set(h : Hash(Symbol, _)) #

Set the columns from hash


def set(h : Hash(String, _)) #

Set the model fields from hash


def set(t : NamedTuple) #

def set(from_json : JSON::Any) #

def set(**t : **T) forall T #
Description copied from module Clear::Model::HasColumns

Set one or multiple columns to a specific value This two are equivalents:

model.set(a: 1)
model.a = 1

def set_from_json(string_or_io : String | IO, trusted : Bool = false) #

Set the fields from json passed as argument Trusted flag set to true will allow mass assignment without protection, FALSE by default


def to_h(full = false) : Hash(String, Clear::SQL::Any) #

Return a hash version of the columns of this model.


def to_json(emit_nulls : Bool = false) #

def to_json(json, emit_nulls = false) #

def update_from_json(string_or_io : String | IO, trusted : Bool = false) #

Set the fields from json passed as argument and call save on the object Trusted flag set to true will allow mass assignment without protection, FALSE by default


def update_from_json!(string_or_io : String | IO, trusted : Bool = false) #

Set the fields from json passed as argument and call save! on the object Trusted flag set to true will allow mass assignment without protection, FALSE by default


def update_h : Hash(String, Clear::SQL::Any) #

Generate the hash for update request (like during save)


def updated_at : Time #

Returns the value of #updated_at column or throw an exception if the column is not defined.


def updated_at=(x : Time) #

Setter for #updated_at column.


def updated_at_column : Clear::Model::Column(Time, Clear::Model::Converter::TimeConverter) #

Returns the column object used to manage #updated_at field

See Clear::Model::Column


def validate_fields_presence #

For each column, ensure than when needed the column has present information into it.

This method is called on validation.