mirror of
https://github.com/grafana/grafana.git
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1f1461734c
* add support for sortBy field selector * use label selectors instead of field selectors * set entity_labels on create & update * make entity server integration tests work * test fixes * be more consistent with handling of empty body, meta or status * workaround for database is locked errors during migration * fix double import of sqlite3 * rename functions and tidy up * refactor update * disable integration tests until we can fix the database locking issue
50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
package entity
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import (
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/selection"
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)
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const folderAnnoKey = "grafana.app/folder"
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const sortByKey = "grafana.app/sortBy"
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type Requirements struct {
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// Equals folder
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Folder *string
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// SortBy is a list of fields to sort by
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SortBy []string
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}
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func ReadLabelSelectors(selector labels.Selector) (Requirements, labels.Selector, error) {
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requirements := Requirements{}
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newSelector := labels.NewSelector()
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if selector == nil {
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return requirements, newSelector, nil
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}
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labelSelectors, _ := selector.Requirements()
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for _, r := range labelSelectors {
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switch r.Key() {
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case folderAnnoKey:
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if (r.Operator() != selection.Equals) && (r.Operator() != selection.DoubleEquals) {
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return requirements, newSelector, apierrors.NewBadRequest(folderAnnoKey + " label selector only supports equality")
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}
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folder := r.Values().List()[0]
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requirements.Folder = &folder
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case sortByKey:
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if r.Operator() != selection.In {
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return requirements, newSelector, apierrors.NewBadRequest(sortByKey + " label selector only supports in")
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}
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requirements.SortBy = r.Values().List()
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// add all unregonized label selectors to the new selector list, these will be processed by the entity store
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default:
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newSelector = newSelector.Add(r)
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}
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}
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return requirements, newSelector, nil
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}
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