Author: Bhavesh Anand

This author has written 18 articles
Read more about the article Adding Marketer and Sales Admin Events Relationship with User on Open Event Server

Adding Marketer and Sales Admin Events Relationship with User on Open Event Server

In this blog, we will talk about how to add API for adding and displaying events in with a user acts as a Marketer and/or Sales Admin on Open Event Server. The focus is on Model Updation and Schema updation of User.

Model Updation

For the Marketer and Sales Admin events, we’ll update User model as follows

Now, let’s try to understand these relationships.

In this feature, we are providing user to act as a marketer and sales admin for a event.

  1. Both the relationships will return the events in which the user is acting as a Marketer and/or Sales Admin.
  2. There are two custom system roles in model CustomSysRole which are Marketer and Sales Admin. A user can act as these custom system roles with respect to an event.
  3. In this relationship, we will return those events from UserSystemRole model in which a user is acting as Marketer Custom System Role and Sales Admin Custom System Role.
  4. We make use of Event and join UserSystemRole and CustomSysRole where we use that user where UserSystemRole.user_id == User.id , CustomSysRole.id == UserSystemRole.role_id, CustomSysRole.name == “Sales Admin” and then we return events in which Event.id == UserSystemRole.event_id
  5. Similarly, for Marketer events we make use of Event and join UserSystemRole and CustomSysRole where we use that user where UserSystemRole.user_id == User.id , CustomSysRole.id == UserSystemRole.role_id, CustomSysRole.name == “Marketer” and then we return events in which Event.id == UserSystemRole.event_id

Schema Updation

For the Marketer and Sales Admin events, we’ll update UserSchema as follows

Now, let’s try to understand this Schema.

In this feature, we are providing user to act as a marketer and sales admin for a event.

  1. For displaying marketer_events relation self_view is displayed by API v1.user_marketer_events and collection of these events is displayed by API v1.event_list
  2. These APIs will return the Events as schema=”EventSchema”. Here, many=True tells us that this is One to many relationship with Events model.

So, we saw how an user can act as a marketer and/or sales admin for many events.

Resources

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Read more about the article Adding Custom System Roles in Open Event Server

Adding Custom System Roles in Open Event Server

In this blog, we will talk about how to add different custom system roles concerning a user on Open Event Server. The focus is on its model and Schema updation.

Model Updation

For the User Table, we’ll update our User Model as follows:

Now, let’s try to understand these hybrid properties.

In this feature, we are providing Admin the rights to see whether a user is acting as a Marketer and / or  Sales Admin of any of the event or not. Here, _is__system_role method is used to check whether an user plays a system role like Marketer, Sales Admin or not. This is done by querying the record from UserSystemRole model. If the record is present then the returned value is True otherwise false.

Schema Updation

For the User Model, we’ll update our Schema as follows:

Now, let’s try to understand this Schema.

Since all the properties will return either True or false so these all properties are set to Boolean in Schema.Here dump_only means, we will return this property in the Schema.

So, we saw how User Model and Schema is updated to show custom system roles concerning a user on Open Event Server.

Resources

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Read more about the article Loading Default System Image of Event Topic on Open Event Server

Loading Default System Image of Event Topic on Open Event Server

In this blog, we will talk about how to add feature of loading system image of event topic from server to display it on Open Event Server. The focus is on adding a helper function to create system image and loading that local image onto server.

Helper function

In this feature, we are providing feature of addition of loading default system image if user doesn’t provides that.

  1. First we get a suitable filename for a image file using get_file_name() function.
  2. After getting filename, we check if the url provided by user is a valid url or not.
  3. If the url is invalid then we use the default system image as the image of that particular event topic.
  4. After getting the local image then we read that image, if the given image file or the default image is not readable or gives IOError then we send a message to the user that Image url is invalid.
  5. After successful reading of image we upload the image to event_topic directory in static directory of the project.
  6. After uploading of this image we get a local URL which shows where is the image is stored. This path is stored into database and finally we can display this image.

Resources

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Read more about the article Adding Custom System Roles API on Open Event Server

Adding Custom System Roles API on Open Event Server

In this blog, we will talk about how to add API for accessing the Custom System Roles on Open Event Server. The focus is on Schema creation and it’s API creation.

Schema Creation

For the CustomSystemRoleSchema, we’ll make our Schema as follows

Now, let’s try to understand this Schema.

In this feature, we are providing Admin the rights to get and create more system roles.

  1. First of all, we are provide the two fields in this Schema, which are id and name.
  2. The very first attribute id should be of type string as it would have the identity which will auto increment when a new system role is created. Here dump_only means that this value can’t be changed after the record is created.
  3. Next attribute name should be of string type and it will contain the name of new custom system role. This attribute is required in a custom_system_roles table.

API Creation

For the Custom System Roles, we’ll make our API as follows

Now, let’s try to understand this Schema.

In this API, we are providing Admin the rights to set Custom System roles.

  1. CustomSystemRoleList inherits ResourceList which will give us list of all the custom system roles in the whole system.
  2. CustomSystemRoleList has a decorators attribute which gives the permission of POST request to only admins of the system.
  3. CustomSystemRoleDetail inherits ResourceDetail which will give the details of a CustomSystemRole object by id.
  4. CustomSystemRoleDetail has a decorators attribute which gives the permission of PATCH and DELETE requests to only admins of the system.

So, we saw how Custom System Role Schema and API is created to allow users to get it’s values and Admin users to update and delete it’s record.

Resources

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Read more about the article Adding Panel Permissions API in Open Event Server

Adding Panel Permissions API in Open Event Server

In this blog, we will talk about how to add API for accessing the Panel Permissions on Open Event Server. The focus is on Schema creation and it’s API creation.

Schema Creation

For the PanelPermissionSchema, we’ll make our Schema as follows

Now, let’s try to understand this Schema.

In this feature, we are providing Admin the rights to create and assign panel permission to any of the custom system role.

  1. First of all, we are provide the four fields in this Schema, which are id, panel_name, role_id and can_access.
  2. The very first attribute id should be of type string as it would have the identity which will auto increment when a new system role is created. Here dump_only means that this value can’t be changed after the record is created.
  3. Next attribute panel_name should be of string type and it will contain the name of panel. This attribute is required in a panel_permissions table so set as allow_none=False.
  4. Next attribute role_id should be of integer type as it will tell us that to which role current panel is concerning.
  5. Next attribute can_access should be of boolean type as it will tell us whether a role of id=role_id has access to this panel or not.
  6. There is also a relationship named role which will give us the details of the custom system role with id=role_id.

API Creation

For the Panel Permissions, we’ll make our API as follows

Now, let’s try to understand this Schema.

In this API, we are providing Admin the rights to set panel permissions for a custom system role.

  1. PanelPermissionList inherits ResourceList which will give us list of all the custom system roles in the whole system.
  2. PanelPermissionList has a decorators attribute which gives the permission of both GET and POST requests to only admins of the system.
  3. The POST request of PanelPermissionList API requires the relationship of role.
  4. PanelPermissionDetail inherits ResourceDetail which will give the details of a Panel Permission object by id.
  5. PanelPermissionDetail has a decorators attribute which gives the permission of GET, PATCH and DELETE requests to only admins of the system.

So, we saw how Panel Permissions Schema and API is created to allow Admin users to get, update and delete it’s record.

Resources

 

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Read more about the article Adding System Messages on Open Event Server

Adding System Messages on Open Event Server

The Open Event Server enables organizers to manage events from concerts to conferences and meetups. It offers features for events with several tracks and venues. Event managers can create invitation forms for speakers and build schedules in a drag and drop interface. The event information is stored in a database. The system provides API endpoints to fetch the data, and to modify and update it.

The Open Event Server is based on JSON 1.0 Specification and hence build on top of Flask Rest Json API (for building Rest APIs) and Marshmallow (for Schema).

In this blog, we will talk about how to add API for accessing the System Messages on Open Event Server. The focus is on its Model updation and it’s Schema creation.

Model Updation

For the System Messages, we’ll make update model as follows

Now, let’s try to understand this Schema.

In this feature, we are providing Admin the rights to read email and notification formats used in Open Event application.

  1. First of all, there is the need to know that it has three columns notification_status, user_control_status and mail_status of type boolean.
  2. Next it has action attribute which is of type String.
  3. At last, we have hybrid properties email_message and notification_message which will return the format of email and notification respective to the action string.
  4. The hybrid properties depends on _email_message method and _notification_message method. These methods reads the MAILS and NOTIFS dictionaries and return there values corresponding to string of action key of corresponding record.

Schema Creation

For the System Messages, we’ll make our Schema as follows

Now, let’s try to understand this Schema.

In this feature, we are providing Admin the rights to read email and notification formats used in Open Event application.

  1. First of all, there is the need to know that it has three boolean properties notification_status, user_control_status and mail_status
  2. Next it has action attribute which is of type String and it’s value can be validated to have any one of the list provided in choices.
  3. At last, it has the String attributes email_message and notification_message which will return the action formats of email and notification concerning the action string provided.

So, we saw how System Messages Schema and Model is created / updated to allow Admin users to read it’s values.

Resources

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Read more about the article Adding Dredd Tests for Image Sizes on Open Event Flask Server

Adding Dredd Tests for Image Sizes on Open Event Flask Server

In this blog, we will talk about how to add dredd hooks for testing the API of Event Image Sizes and Speaker Image Sizes in Open Event Server. The focus is on adding the factory class and dredd hooks of these APIs using factory-boy python library and Dredd API testing framework.

Factory Creation

For the Event and Speaker Image Sizes, we’ll make our factory classes EventImageSizeFactory  and SpeakerImageSizeFactory as follows

Now, let’s try to understand this class.

In this class, we are writing the sample data two records of ImageSizes Model, these records corresponds to Event and Speaker Image Sizes.

  1. First of all, we inherit class factory.alchemy.SQLAlchemyModelFactory to build our sample data which for Image Sizes.
  2. Class Meta has model and sqlalchemy_session attributes. Model tells the factory class of to which model this factory class push the data to database and sqlalchemy_session is assigned with the current database session.
  3. Next, we add the attributes according to the model and Schema of Image Sizes.

Adding Dredd Hooks

For the ImageSizes, we’ll make our dredd hooks as follows

Now, let’s try to understand these tests.

In this tests, we check the API by matching the response after adding a record in these API to one which is present at API blueprint.

  1. First of all, we use decorator @hooks.before which means we first add a record in the database and then match the response we get from API say /v1/event-image-sizes with the response mentioned at Image Size > Event Image Size Details > Get Event Image Size Details in API blueprint.
  2. We create an instance of EventImageSizeFactory which is a record of model Image Sizes.
  3. This record is then returned as a response of API /v1/event-image-sizes and matches with the blueprint at Image Size > Event Image Size Details > Get Event Image Size Details

Similarly, we have added other dredd tests for PATCH method as well.

So, we saw how factory-boy python library and Dredd API testing framework helped us in testing the REST APIs on Open Event Server.

Resources

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Read more about the article Adding Event Roles Permission API on Open Event Server

Adding Event Roles Permission API on Open Event Server

The Open Event Server enables organizers to manage events from concerts to conferences and meetups. It offers features for events with several tracks and venues. Event managers can create invitation forms for speakers and build schedules in a drag and drop interface. The event information is stored in a database. The system provides API endpoints to fetch the data, and to modify and update it.

The Open Event Server is based on JSON 1.0 Specification and hence build on top of Flask Rest Json API (for building Rest APIs) and Marshmallow (for Schema).

In this blog, we will talk about how to add API for accessing and updating the events role permissions on Open Event Server. The focus is on Schema creation and it’s API creation.

Schema Creation

For the Events Role Permission, we’ll make our Schema as follows

 

Now, let’s try to understand this Schema.

In this feature, we are providing Admin the rights to get and update the permission given to a role concerning a service.

  1. First of all, we are provide the four fields in this Schema, which are can_create, can_read, can_update and can_delete which are Boolean.
  2. All these fields gives us idea whether a user with a role can create, read, update and delete a service or not respectively in the whole system.
  3. Next there is a relationship with role which is one of organizer, coorganizer, track_organizer, moderator, registrar or attendee.
  4. Next there is a relationship with service which is one of Track, Microlocation, Session, Speaker or Sponsor.

API Creation

For the Events Role Permissions, we’ll make our API as follows

Now, let’s try to understand this API.

In this feature, we are providing Admin the rights to get and update the permission given to a role concerning a service.

  1. First of all, there is the need to know that this API has two method GET and PATCH.
  2. Decorators shows us that only Admin has permissions to access PATCH method for this API i.e. only Admins can modify the events role permissions .
  3. In EventsRolePermissionList, we are inheriting ResourceList from Flask Rest JSONAPI which will allow us to get all the records for the model Permission.
  4. In EventsRolePermissionDetail, we are inheriting ResourceDetail from Flask Rest JSONAPI which will allow us to get and update attributes of a record of model Permission.
  5. In EventsRolePermissionRelationship, we are inheriting ResourceRelationship from Flask Rest JSONAPI which will allow us to get and update relationships of a record of model Permission.

So, we saw how Events Role Permission Schema and API is created to allow users to get it’s values and Admin users to modify it’s attributes and relationships.

Resources

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Read more about the article Building the API of Speaker Image Size on Open Event Server

Building the API of Speaker Image Size on Open Event Server

The Open Event Server enables organizers to manage events from concerts to conferences and meetups. It offers features for events with several tracks and venues.It uses the JSON 1.0 Specification and build on top of Flask Rest Json API (for building Rest APIs) and Marshmallow (for Schema). In this blog, we will talk about how to add API for accessing and updating the Speaker Image Size on Open Event Server. The focus is on its API creation.

API Creation

For the SpeakerImageSizeDetail, we’ll make our Schema as follows

Now, let’s try to understand SpeakerImageSizeDetail.

In this feature, we are providing Admin the rights to Get and Update the SpeakerImageSizes

  1. kwargs[‘id’] = 2 states that Image Size model has 2 records and 1st record is used for Event Image Size and 2nd record is used for Speaker Image Size.
  2. decorators = (api.has_permission(‘is_admin’, methods=”PATCH”, id=”2″),) states that for Speaker Image Size, Update API is accessible to Admins only.
  3. methods = [‘GET’, ‘PATCH’] states that this API provides two methods i.e. GET and PATCH.
  4. schema = SpeakerImageSizeSchema states that the schema which is used to return the response is Speaker Image Size Schema.
  5. data_layer = {‘session’: db.session, ‘model’: ImageSizes} states the session and Model used to fetch the records.

Resources

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Read more about the article Populating Database for different Event Types and Event Topics on Open Event Server

Populating Database for different Event Types and Event Topics on Open Event Server

The Open Event Server enables organizers to manage events from concerts to conferences and meetups. It offers features for events with several tracks and venues. It uses the JSON 1.0 Specification and build on top of Flask Rest Json API (for building Rest APIs) and Marshmallow (for Schema). In this blog, we will talk about how to add API for accessing and updating the Speaker Image Size on Open Event Server. The focus is on its API creation.

In this blog, we will talk about how to populate database for different event types and event topics in the Open Event Server.

Populating the Database

Using populate_db,py for populating the database.

Now, let’s try to understand this now.

  1. First of all, we will write two functions create_event_topics and create_event_types in populate_db.py .
  2. In these function we will make a list of all the event topics and event types which we want to populate in database.
  3. We will loop through these lists to create their objects if not present.
  4. Last step is to call these functions in populate and populate_without_print functions in populate_db.py itself.

Resources

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