Zend select where is null

The workflow looks like this:. This driver is now ready to be called on when particular workflows are requested. Here is what the Driver API looks like:. The Platform object provides an API to assist in crafting queries in a way that is specific to the SQL implementation of a particular vendor. Nuances such as how identifiers or values are quoted, or what the identifier separator character is are handled by this object. To get an idea of the capabilities, the interface for a platform object looks like this:.

While one can instantiate your own Platform object, generally speaking, it is easier to get the proper Platform instance from the configured adapter by default the Platform type will match the underlying driver implementation :.

The ParameterContainer object is a container for the various parameters that need to be passed into a Statement object to fulfill all the various parameterized parts of the SQL statement. This object implements the ArrayAccess interface.

In addition to handling parameter names and values, the container will assist in tracking parameter types for PHP type to SQL type handling. These are the functions you can call to either produce a a prepared statement, or b a string to be executed. If a table is provided to the Select object, then from cannot be called later to change the name of the table.

Once you have a valid Select object, the following API can be used to further specify various select statement parts:. The method signature is listed as:. As you can see, there are a number of different ways to pass criteria to both having and where. So the following is possible:. Podcast Explaining the semiconductor shortage, and how it might end.

Does ES6 make JavaScript frameworks obsolete? Featured on Meta. Now live: A fully responsive profile. Linked 1. Related Hot Network Questions. Question feed. Stack Overflow works best with JavaScript enabled. Accept all cookies Customize settings. Luckily there is a very simple option for us available to make this happen. In the examples above we have used the default ResultSet object. There is also a HydratingResultSet which will hydrate the given data into a provided object.

This means: if we tell the HydratingResultSet to use the database data to create Post objects for us, then it will do exactly this. We have changed a couple of things here. This Object requires two parameters, the second one being the object to hydrate into and the first one being the hydrator that will be used.

A hydrator , in short, is an object that changes any sort of data from one format to another. The ClassMethods -hydrator will take care of this using the setter- and getter functions of our Post -model.

In case we get something else returned that is not an instance of a ResultInterface we return an empty array. Now that our mapper requires more parameters we need to update the ZendDbSqlMapperFactory and inject those parameters.

Our Mapper has now a really good architecture and no more hidden dependencies. The find function looks really similar to the findAll function.