dissertation | Physicomimetics Desynchronization Algorithm without Global

I created 4 custom post types : 'dissertation', 'subject-free', 'subject-imposed', 'curriculum-vitae'

I have created a metabox that I want to display on 3 custom post types : 'dissertation', 'subject-free', 'subject-imposed'.

When I want to create a post on 'curriculum-vitae'. I got an error : Error: An error occurred while running 'mapSelect': Cannot read property '_metafield_presentation' of undefined

I'm using WordPress and I need to get part of a class name stored in the body tag.

I would like to extract word(s) after post-type prefix.

HTTP cookies violate the REST architectural style because they are independent of application state and they have no semantics, according to Roy Fielding’s doctoral dissertation Architectural Styles and the Design of Network-Based Software Architectures, § 6.3.4.2 ‘Cookies’:

An example of where an inappropriate extension has been made to the protocol to support features that contradict the desired properties of the generic interface is the introduction of site-wide state information in the form of HTTP cookies. Cookie interaction fails to match REST's model of application state, often resulting in confusion for the typical browser application.

Cookies also violate REST because they allow data to be passed without sufficiently identifying its semantics, thus becoming a concern for both security and privacy. The combination of cookies with the Referer [sic] header field makes it possible to track a user as they browse between sites.

So he suggests the following alternative:

As a result, cookie-based applications on the Web will never be reliable. The same functionality should have been accomplished via anonymous authentication and true client-side state. A state mechanism that involves preferences can be more efficiently implemented using judicious use of context-setting URI rather than cookies, where judicious means one URI per state rather than an unbounded number of URI due to the embedding of a user-id. Likewise, the use of cookies to identify a user-specific "shopping basket" within a server-side database could be more efficiently implemented by defining the semantics of shopping items within the hypermedia data formats, allowing the user agent to select and store those items within their own client-side shopping basket, complete with a URI to be used for check-out when the client is ready to purchase.

My understanding of his user preference example is the following. Let’s say that a website allows its users to choose between a light theme (the default) and a dark theme in a preference page at URI /preferences (like Stack Overflow). When a user chooses the dark theme, he should be redirected to the URI /preferences?theme=dark whose HTML representation will be the same as the HTML representation of the URI /preferences, except that it will be now in dark mode and the query ?theme=dark will be appended to all the embedded hyperlinks. That way, if the user selects for instance the embedded hyperlink to the home page at URI /home?theme=dark (not /home), then the HTML representation of the home page will also be in dark mode and the query ?theme=dark will also be appended to all its embedded hyperlinks. To revert to the light theme, then the user selects the embedded hyperlink to the preference page at URI /preferences?theme=dark, chooses the light theme in the preference page and should be redirected to the URI /preferences whose HTML representation will be the same as the HTML representation of the URI /preferences?theme=dark, except that it will be now in light mode and the query ?theme=dark will be removed from all the embedded hyperlinks. Is it what Roy Fielding meant?

Likewise for his shopping cart example, when the user adds a product i to cart, he should be redirected to a URI with a query ?product-{i}={product-i}&quantity-{i}={quantity-i} whose HTML representation will have that query appended to all its embedded hyperlinks. That way, when the user selects the check out hyperlink /checkout?product-1={product-1}&quantity-1={quantity-1}&…&product-n={product-n}&quantity-n={quantity-n}, the content of the shopping cart is sent to the website. Is it what Roy Fielding meant?

Part of my dissertation involves rectifying a section of an image that is not in perfect frontal perspective. I can't add images because of my low score, but it's essentially this python code (with images).

I've already built the program and it works, but I don't understand the math behind it. I've looked into matrix image rectification and homography, but there is a huge skill gap to the point I can't understand any of it. I'm not sure where to start learning the math. I know the basics of matrices and that's about it. I want to get to the point where I can code the matrix transformation function myself.

In an nutshell, what do I need to "study" to understand the math?

Thank you.

I am preparing my master dissertation and took the challenge of doing it all in R together with 2 students.

I used the template from Ulrik Lyngs. Modified the index.Rmd. But now all my lines are numbered...

See infra for index.Rmd code. What I had to do to make it work (build the thesis), is download MacTex and uninstall tinyTex. But I really don't know what went wrong.

I have an @property and a setter for that property. I need the setter to concatenate a label onto the string and save it as the new string object. Here is the property and setter I am referring to:

I've been reading Roy Fielding dissertation, but he never defined the specific usage of the HTTP methods! who suggested to use the http verbs in the specific way we use them today in REST architecture?

I tried to install the rethinking R package. However, I could not install the package. Whenever I install, R downloads the package, but it couldn't install for some reason. I even tried the direct website for the package, yet I ended up with the same problem. I also tried another package, "timetk". However, I faced the same error. Let me know the problem. Thanks.

Code:

#1.

I am learning OpenID Connect implementation in ASP.NET Core with a Web API project. My client is currently Postman.

Context (XY problem): I want Sendgrid to report Webhook data with authentication. Sendgrid uses OAuth 2 flow. I have mocked a Sendgrid Webhook invocation on Postman to use.

I followed a few tutorials to set up authorization server, ie. the part that will issue you a token, in particular using a temporary in-memory store based on EF Core. For the moment, this solution is sufficient to me and I'll have to do more researching and prototyping before becoming production-grade for reuse in future project.

I can successfully obtain a token with Postman using hardcoded credentials. Now I want the Controller APIs to validate tokens issued by the very same server. Let me show some code:

Startup.cs