docb | Opinionated Python ORM for DynamoDB | Object-Relational Mapping library
kandi X-RAY | docb Summary
kandi X-RAY | docb Summary
Opinionated Python ORM for DynamoDB.
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Top functions reviewed by kandi - BETA
- Check all unique properties
- Check that a key is unique
- Return the item with the given pk
- Return a QuerySet from the query
- Yield documents from filters
- Build query parameters
- Get a list of documents matching the filters
- Build a query
- Bulk save a list of documents
- Prepare a document
- Create a new primary key
- Set the primary key
- Build a resource definition
- Build the command line arguments for a table
- Combine two lists
- Creates a list
- Returns a dictionary of tables
- Return a dictionary of DynamoDB resources
- Parse requirements file
- Return the expression
docb Key Features
docb Examples and Code Snippets
Community Discussions
Trending Discussions on docb
QUESTION
I am trying to get ULID working with mongoose.
My DocTypeA schema looks like this:
...ANSWER
Answered 2020-Dec-09 at 18:09ULID are not qualified ObjectId.
They are not hexadecimal strings and are 26-char length identifiers.
Given the way schema for DocTypeB is declared, docA field should be of String type and not ObjectId.
Your schema definition for DocTypeB should be as follows.
QUESTION
In the documentation it says:
In the case of a concurrent edit, Cloud Firestore runs the entire transaction again. For example, if a transaction reads documents and another client modifies any of those documents, Cloud Firestore retries the transaction. This feature ensures that the transaction runs on up-to-date and consistent data.
But does this include documents creation/deletion?
For exampleImagine this situation where a user can re-create/delete two documents "A" or "B" when pressing the buttons "Action A" or "Action B".
The creation/deletion of both documents happen in parallel.
Both documents are added/removed to/from the same collection.
Algorithm(SEE THE IMAGE I HAVE ADDED WHILE READING)
When a document is created/deleted from this collection, a trigger function start executing the following code:
...ANSWER
Answered 2020-Dec-03 at 03:13does [Firestore's transaction mechanism] include documents creation/deletion?
Document creation and deletions are modifications of the document, so are included in the guarantee that you quote.
QUESTION
This is my first time working with json and I'm having a hard time trying to filter an array I'm trying to get all values Document ID /Page
...ANSWER
Answered 2020-Sep-16 at 08:44If you need to convert the input array of String into specified map of document IDs to the list of page IDs, this can be implemented as follows using Java 8 Stream API:
QUESTION
I receive a base XML file, I need to create N XmlFiles with different content values. basically I do a copy, change some node values and create the new file without modifying the base one.
I add every XML document to a list of documents to do other processes and then to interact and create the N Files. after my code executes I end up with all the files having the same info, even the base one is modified. I create a basic code to demonstrate it. thanks for any explanation about why is it happening.
...ANSWER
Answered 2020-May-20 at 15:28All files are changing because you are changing the orginial xml document in ChangeValues function. The allocation below (new Document) has no effect, since you are assiging the reference to the original document to it.
QUESTION
I have two git repositories with a few shared subdirectories between them, as shown below.
...ANSWER
Answered 2020-May-15 at 19:53I'm not sure why you would want to do this, but technically you could do the following:
QUESTION
I'm merging two documents into one. For that, I want to replace all references to DocA with references to DocB.
I want to do this for all documents and all collections within a database. Across collections/models, every reference to this type of document uses the same key, "docFieldKey." However the path is often different so sometimes it's at the top-level, sometimes in an array of objects within the document.
...ANSWER
Answered 2020-Feb-07 at 09:13I ended up doing this on our NodeJS server. To run, just call 'replaceDocument.' If people find it useful, I may make it into an npm package. I haven't seen this functionality anywhere.
QUESTION
I have a csv file with the following values. Use import-csv to calculate the highest version for each doc.
...ANSWER
Answered 2020-Feb-06 at 08:39When you import the CSV you will need to convert the Version to a decimal, then you can use the Group-Object and Measure-Object to get the highest Version by file. Something like this:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install docb
If you want to make filter() queries, you should create an index for every attribute that you want to filter by.
Table name should be between 3 and 255 characters long. (A-Z,a-z,0-9,_,-,.)
Primary key (partition key) should be equal to _doc_type and range should be _id.
Primary key should be equal to attribute name.
Index name should be equal to attribute name postfixed by "-index". (It will be filled by AWS automatically). For example, for attribute "city": Primary key = "city" and index name = "city-index".
Index name can be directly specified by index_name argument:
IMPORTANT: In other words, if your indexed attribute is named city, then your index name should be city-index, if you didn't specify index_name argument.
Projected attributes: All.
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