Mastering Flask

An Advanced Introduction to Flask 3 lectures 13:15 The Course Overview The viewer needs to have a clear picture of where this course is going to take them.

• Explain who the authors are and what they do
• Explain and show what application the user will have built by the end of the course
• Explain what software is needed to follow along in the course

A High-level Reintroduction into Flask The course assumes an understanding and familiarity of Flask's API, but we still need a basic application to build off.

• Create a simple view that returns "Hello world"
• Run the server with the manage.py script
• Create a hierarchical template and have the view render it

Dependency Isolation with virtualenv Python libraries are installed globally, so we need a way to isolate our project's libraries so that they do not conflict with each other.

• Why use dependency isolation
• Install virtualenv
• Initialize virtualenv in the project folder

An Advanced Introduction to Flask 3 lectures 13:15 The Course Overview The viewer needs to have a clear picture of where this course is going to take them.

• Explain who the authors are and what they do
• Explain and show what application the user will have built by the end of the course
• Explain what software is needed to follow along in the course

A High-level Reintroduction into Flask The course assumes an understanding and familiarity of Flask's API, but we still need a basic application to build off.

• Create a simple view that returns "Hello world"
• Run the server with the manage.py script
• Create a hierarchical template and have the view render it

Dependency Isolation with virtualenv Python libraries are installed globally, so we need a way to isolate our project's libraries so that they do not conflict with each other.

• Why use dependency isolation
• Install virtualenv
• Initialize virtualenv in the project folder

The Course Overview The viewer needs to have a clear picture of where this course is going to take them.

• Explain who the authors are and what they do
• Explain and show what application the user will have built by the end of the course
• Explain what software is needed to follow along in the course

The Course Overview The viewer needs to have a clear picture of where this course is going to take them.

• Explain who the authors are and what they do
• Explain and show what application the user will have built by the end of the course
• Explain what software is needed to follow along in the course

The Course Overview The viewer needs to have a clear picture of where this course is going to take them.

• Explain who the authors are and what they do
• Explain and show what application the user will have built by the end of the course
• Explain what software is needed to follow along in the course

The Course Overview The viewer needs to have a clear picture of where this course is going to take them.

• Explain who the authors are and what they do
• Explain and show what application the user will have built by the end of the course
• Explain what software is needed to follow along in the course

The viewer needs to have a clear picture of where this course is going to take them.

• Explain who the authors are and what they do
• Explain and show what application the user will have built by the end of the course
• Explain what software is needed to follow along in the course

The viewer needs to have a clear picture of where this course is going to take them.

• Explain who the authors are and what they do
• Explain and show what application the user will have built by the end of the course
• Explain what software is needed to follow along in the course

A High-level Reintroduction into Flask The course assumes an understanding and familiarity of Flask's API, but we still need a basic application to build off.

• Create a simple view that returns "Hello world"
• Run the server with the manage.py script
• Create a hierarchical template and have the view render it

A High-level Reintroduction into Flask The course assumes an understanding and familiarity of Flask's API, but we still need a basic application to build off.

• Create a simple view that returns "Hello world"
• Run the server with the manage.py script
• Create a hierarchical template and have the view render it

A High-level Reintroduction into Flask The course assumes an understanding and familiarity of Flask's API, but we still need a basic application to build off.

• Create a simple view that returns "Hello world"
• Run the server with the manage.py script
• Create a hierarchical template and have the view render it

A High-level Reintroduction into Flask The course assumes an understanding and familiarity of Flask's API, but we still need a basic application to build off.

• Create a simple view that returns "Hello world"
• Run the server with the manage.py script
• Create a hierarchical template and have the view render it

The course assumes an understanding and familiarity of Flask's API, but we still need a basic application to build off.

• Create a simple view that returns "Hello world"
• Run the server with the manage.py script
• Create a hierarchical template and have the view render it

The course assumes an understanding and familiarity of Flask's API, but we still need a basic application to build off.

• Create a simple view that returns "Hello world"
• Run the server with the manage.py script
• Create a hierarchical template and have the view render it

Dependency Isolation with virtualenv Python libraries are installed globally, so we need a way to isolate our project's libraries so that they do not conflict with each other.

• Why use dependency isolation
• Install virtualenv
• Initialize virtualenv in the project folder

Dependency Isolation with virtualenv Python libraries are installed globally, so we need a way to isolate our project's libraries so that they do not conflict with each other.

• Why use dependency isolation
• Install virtualenv
• Initialize virtualenv in the project folder

Dependency Isolation with virtualenv Python libraries are installed globally, so we need a way to isolate our project's libraries so that they do not conflict with each other.

• Why use dependency isolation
• Install virtualenv
• Initialize virtualenv in the project folder

Dependency Isolation with virtualenv Python libraries are installed globally, so we need a way to isolate our project's libraries so that they do not conflict with each other.

• Why use dependency isolation
• Install virtualenv
• Initialize virtualenv in the project folder

Python libraries are installed globally, so we need a way to isolate our project's libraries so that they do not conflict with each other.

• Why use dependency isolation
• Install virtualenv
• Initialize virtualenv in the project folder

Python libraries are installed globally, so we need a way to isolate our project's libraries so that they do not conflict with each other.

• Why use dependency isolation
• Install virtualenv
• Initialize virtualenv in the project folder

Accessing the Database 6 lectures 36:02 Connecting to the Database Connecting to and querying databases can be verbose

• Explain what SQLAlchemy is and install it
• Show some example SQL queries versus equivalent SQLALchemy queries
• Connect to the database with SQLAlchemy

Creating Models We have a universal connection. But now we need to create an API to make the queries.

• Explain what an ORM is
• Write Python objects to represent the database tables
• Show an example query with the new API

Accessing Data We have a universal connection and have set up a universal query interface. Let's start reading data.

• Write queries to create new rows in the table
• Create queries to read data from tables
• Write queries to update or delete existing data

Creating and Querying One-to-Many Relationships Data is rarely isolated. We need a way to match the records of relationship A to the records of relationship B in such a way that a record in relationship A can link to multiple records in relationship B, but a record in B is linked to only one record in A.

• Explain one-to-many relationships
• Modify our existing models to create the relationships
• Write queries to use these relationships

Creating and Querying Many-to-Many Relationships We need a way to match relationship A and relationship B in such a way that a record in relationship A can link to multiple records in relationship B and vice versa.

• Explain many-to-many relationships
• Modify our existing models to create the relationships
• Write queries to use these relationships

Advanced Queries How can SQLAlchemy represent the more complex queries that can be created in SQL?

• Use Python's evaluation expressions for more complex filtering
• Use the like, and_, and or_ methods of SQLAlchemy
• Use sqlalchemy to generate SQL aggregation functions

Accessing the Database. 6 lectures 36:02 Connecting to the Database Connecting to and querying databases can be verbose

• Explain what SQLAlchemy is and install it
• Show some example SQL queries versus equivalent SQLALchemy queries
• Connect to the database with SQLAlchemy

Creating Models We have a universal connection. But now we need to create an API to make the queries.

• Explain what an ORM is
• Write Python objects to represent the database tables
• Show an example query with the new API

Accessing Data We have a universal connection and have set up a universal query interface. Let's start reading data.

• Write queries to create new rows in the table
• Create queries to read data from tables
• Write queries to update or delete existing data

Creating and Querying One-to-Many Relationships Data is rarely isolated. We need a way to match the records of relationship A to the records of relationship B in such a way that a record in relationship A can link to multiple records in relationship B, but a record in B is linked to only one record in A.

• Explain one-to-many relationships
• Modify our existing models to create the relationships
• Write queries to use these relationships

Creating and Querying Many-to-Many Relationships We need a way to match relationship A and relationship B in such a way that a record in relationship A can link to multiple records in relationship B and vice versa.

• Explain many-to-many relationships
• Modify our existing models to create the relationships
• Write queries to use these relationships

Advanced Queries How can SQLAlchemy represent the more complex queries that can be created in SQL?

• Use Python's evaluation expressions for more complex filtering
• Use the like, and_, and or_ methods of SQLAlchemy
• Use sqlalchemy to generate SQL aggregation functions

Connecting to the Database Connecting to and querying databases can be verbose

• Explain what SQLAlchemy is and install it
• Show some example SQL queries versus equivalent SQLALchemy queries
• Connect to the database with SQLAlchemy

Connecting to the Database Connecting to and querying databases can be verbose

• Explain what SQLAlchemy is and install it
• Show some example SQL queries versus equivalent SQLALchemy queries
• Connect to the database with SQLAlchemy

Connecting to the Database Connecting to and querying databases can be verbose

• Explain what SQLAlchemy is and install it
• Show some example SQL queries versus equivalent SQLALchemy queries
• Connect to the database with SQLAlchemy

Connecting to the Database Connecting to and querying databases can be verbose

• Explain what SQLAlchemy is and install it
• Show some example SQL queries versus equivalent SQLALchemy queries
• Connect to the database with SQLAlchemy

Connecting to and querying databases can be verbose

• Explain what SQLAlchemy is and install it
• Show some example SQL queries versus equivalent SQLALchemy queries
• Connect to the database with SQLAlchemy

Connecting to and querying databases can be verbose

• Explain what SQLAlchemy is and install it
• Show some example SQL queries versus equivalent SQLALchemy queries
• Connect to the database with SQLAlchemy

Creating Models We have a universal connection. But now we need to create an API to make the queries.

• Explain what an ORM is
• Write Python objects to represent the database tables
• Show an example query with the new API

Creating Models We have a universal connection. But now we need to create an API to make the queries.

• Explain what an ORM is
• Write Python objects to represent the database tables
• Show an example query with the new API

Creating Models We have a universal connection. But now we need to create an API to make the queries.

• Explain what an ORM is
• Write Python objects to represent the database tables
• Show an example query with the new API

Creating Models We have a universal connection. But now we need to create an API to make the queries.

• Explain what an ORM is
• Write Python objects to represent the database tables
• Show an example query with the new API

We have a universal connection. But now we need to create an API to make the queries.

• Explain what an ORM is
• Write Python objects to represent the database tables
• Show an example query with the new API

We have a universal connection. But now we need to create an API to make the queries.

• Explain what an ORM is
• Write Python objects to represent the database tables
• Show an example query with the new API

Accessing Data We have a universal connection and have set up a universal query interface. Let's start reading data Loops and Control Structures Jinja provides an easy way to replace values in...